Stojanović, Zoran A.

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orcid::0000-0003-4162-121X
  • Stojanović, Zoran A. (23)

Author's Bibliography

Thermal Diffusivity of High-Density Polyethylene Samples of Different Crystallinity Evaluated by Indirect Transmission Photoacoustics

Nešić, Mioljub V.; Popović, Milan; Rabasović, Mihailo D.; Miličević, Dejan S.; Suljovrujić, Edin H.; Markushev, Dragan D.; Stojanović, Zoran A.

(2018)

TY  - JOUR
AU  - Nešić, Mioljub V.
AU  - Popović, Milan
AU  - Rabasović, Mihailo D.
AU  - Miličević, Dejan S.
AU  - Suljovrujić, Edin H.
AU  - Markushev, Dragan D.
AU  - Stojanović, Zoran A.
PY  - 2018
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/7199
AB  - In this work, thermal diffusivity of crystalline high-density polyethylene samples of various thickness, and prepared using different procedures, was evaluated by transmission gas-microphone frequency photoacoustics. The samples composition analysis and their degree of crystallinity were determined from the wide-angle X-ray diffraction, which confirmed that high-density polyethylene samples, obtained by slow and fast cooling, were equivalent in composition but with different degrees of crystallinity. Structural analysis, performed by differential scanning calorimetry, demonstrated that all of the used samples had different levels of crystallinity, depending not only on the preparing procedure, but also on sample thickness. Therefore, in order to evaluate the samples thermal diffusivity, it was necessary to modify standard photoacoustic fitting procedures (based on the normalization of photoacoustic amplitude and phase characteristics on two thickness levels) for the interpretation of photoacoustic measurements. The calculated values of thermal diffusivity were in the range of the expected literature values. Besides that, the obtained results indicate the unexpected correlation between the values of thermal diffusivity and thermal conductivity with the degree of crystallinity of the investigated geometrically thin samples. The results indicate the necessity of additional investigation of energy transport in macromolecular systems, as well as the possible employment of the photoacoustic techniques in order to clarify its mechanism.
T2  - International Journal of Thermophysics
T1  - Thermal Diffusivity of High-Density Polyethylene Samples of Different Crystallinity Evaluated by Indirect Transmission Photoacoustics
VL  - 39
IS  - 2
DO  - 10.1007/s10765-017-2345-0
ER  - 
@article{
author = "Nešić, Mioljub V. and Popović, Milan and Rabasović, Mihailo D. and Miličević, Dejan S. and Suljovrujić, Edin H. and Markushev, Dragan D. and Stojanović, Zoran A.",
year = "2018",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/7199",
abstract = "In this work, thermal diffusivity of crystalline high-density polyethylene samples of various thickness, and prepared using different procedures, was evaluated by transmission gas-microphone frequency photoacoustics. The samples composition analysis and their degree of crystallinity were determined from the wide-angle X-ray diffraction, which confirmed that high-density polyethylene samples, obtained by slow and fast cooling, were equivalent in composition but with different degrees of crystallinity. Structural analysis, performed by differential scanning calorimetry, demonstrated that all of the used samples had different levels of crystallinity, depending not only on the preparing procedure, but also on sample thickness. Therefore, in order to evaluate the samples thermal diffusivity, it was necessary to modify standard photoacoustic fitting procedures (based on the normalization of photoacoustic amplitude and phase characteristics on two thickness levels) for the interpretation of photoacoustic measurements. The calculated values of thermal diffusivity were in the range of the expected literature values. Besides that, the obtained results indicate the unexpected correlation between the values of thermal diffusivity and thermal conductivity with the degree of crystallinity of the investigated geometrically thin samples. The results indicate the necessity of additional investigation of energy transport in macromolecular systems, as well as the possible employment of the photoacoustic techniques in order to clarify its mechanism.",
journal = "International Journal of Thermophysics",
title = "Thermal Diffusivity of High-Density Polyethylene Samples of Different Crystallinity Evaluated by Indirect Transmission Photoacoustics",
volume = "39",
number = "2",
doi = "10.1007/s10765-017-2345-0"
}
Nešić, M. V., Popović, M., Rabasović, M. D., Miličević, D. S., Suljovrujić, E. H., Markushev, D. D.,& Stojanović, Z. A. (2018). Thermal Diffusivity of High-Density Polyethylene Samples of Different Crystallinity Evaluated by Indirect Transmission Photoacoustics.
International Journal of Thermophysics, 39(2).
https://doi.org/10.1007/s10765-017-2345-0
Nešić MV, Popović M, Rabasović MD, Miličević DS, Suljovrujić EH, Markushev DD, Stojanović ZA. Thermal Diffusivity of High-Density Polyethylene Samples of Different Crystallinity Evaluated by Indirect Transmission Photoacoustics. International Journal of Thermophysics. 2018;39(2)
Nešić Mioljub V., Popović Milan, Rabasović Mihailo D., Miličević Dejan S., Suljovrujić Edin H., Markushev Dragan D., Stojanović Zoran A., "Thermal Diffusivity of High-Density Polyethylene Samples of Different Crystallinity Evaluated by Indirect Transmission Photoacoustics" International Journal of Thermophysics, 39, no. 2 (2018),
https://doi.org/10.1007/s10765-017-2345-0 .
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Formation of ZnIn2S4 nanosheets and tubular structures in organic media

Carević, Milica V.; Savić, Tatjana D.; Abazović, Nadica; Mitrić, Miodrag; Stojanović, Zoran A.; Ahrenkiel, Scott Phillip; Čomor, Mirjana

(2017)

TY  - JOUR
AU  - Carević, Milica V.
AU  - Savić, Tatjana D.
AU  - Abazović, Nadica
AU  - Mitrić, Miodrag
AU  - Stojanović, Zoran A.
AU  - Ahrenkiel, Scott Phillip
AU  - Čomor, Mirjana
PY  - 2017
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/1397
AB  - Hot-injection method for synthesis of ZnIn2S4 (ZIS) in organic media was studied. Nanosized ZnIn2S4 is successfully synthesized in oleic acid/oleylamine mixture in different ratios, which are both: complexing and/or capping agents. Nanosheets/nanoscrolls of about 50 nm are obtained. The band gaps of synthesized nanostructures were calculated to be in the range from 2.6 to 3.0 eV, values which are increased compared to bulk value (2.3-2.5 eV). The increase of band gap can be assigned to nanodimensions of the particles. Potential of band edges is calculated using empirical equation and find to be in the range from -0.16 to -0.36 V for conduction band, and from 2.24 to 2.69 V for valence band. By using XRD and TEM techniques, crystal structure and morphology of obtained materials were investigated, and detailed formation and growth mechanism of nanosheets/nanoscroles is proposed accordingly. (C) 2016 Elsevier Ltd. All rights reserved.
T2  - Materials Research Bulletin
T1  - Formation of ZnIn2S4 nanosheets and tubular structures in organic media
VL  - 87
SP  - 140
EP  - 147
DO  - 10.1016/j.materresbull.2016.11.037
ER  - 
@article{
author = "Carević, Milica V. and Savić, Tatjana D. and Abazović, Nadica and Mitrić, Miodrag and Stojanović, Zoran A. and Ahrenkiel, Scott Phillip and Čomor, Mirjana",
year = "2017",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/1397",
abstract = "Hot-injection method for synthesis of ZnIn2S4 (ZIS) in organic media was studied. Nanosized ZnIn2S4 is successfully synthesized in oleic acid/oleylamine mixture in different ratios, which are both: complexing and/or capping agents. Nanosheets/nanoscrolls of about 50 nm are obtained. The band gaps of synthesized nanostructures were calculated to be in the range from 2.6 to 3.0 eV, values which are increased compared to bulk value (2.3-2.5 eV). The increase of band gap can be assigned to nanodimensions of the particles. Potential of band edges is calculated using empirical equation and find to be in the range from -0.16 to -0.36 V for conduction band, and from 2.24 to 2.69 V for valence band. By using XRD and TEM techniques, crystal structure and morphology of obtained materials were investigated, and detailed formation and growth mechanism of nanosheets/nanoscroles is proposed accordingly. (C) 2016 Elsevier Ltd. All rights reserved.",
journal = "Materials Research Bulletin",
title = "Formation of ZnIn2S4 nanosheets and tubular structures in organic media",
volume = "87",
pages = "140-147",
doi = "10.1016/j.materresbull.2016.11.037"
}
Carević, M. V., Savić, T. D., Abazović, N., Mitrić, M., Stojanović, Z. A., Ahrenkiel, S. P.,& Čomor, M. (2017). Formation of ZnIn2S4 nanosheets and tubular structures in organic media.
Materials Research Bulletin, 87, 140-147.
https://doi.org/10.1016/j.materresbull.2016.11.037
Carević MV, Savić TD, Abazović N, Mitrić M, Stojanović ZA, Ahrenkiel SP, Čomor M. Formation of ZnIn2S4 nanosheets and tubular structures in organic media. Materials Research Bulletin. 2017;87:140-147
Carević Milica V., Savić Tatjana D., Abazović Nadica, Mitrić Miodrag, Stojanović Zoran A., Ahrenkiel Scott Phillip, Čomor Mirjana, "Formation of ZnIn2S4 nanosheets and tubular structures in organic media" Materials Research Bulletin, 87 (2017):140-147,
https://doi.org/10.1016/j.materresbull.2016.11.037 .
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6

Analysis of the Measurement System and Optimization of the Measurement Procedure for Detection of Thermal Memory Effects by Photoacoustic Experiments

Todosijevic, S.; Soskic, Z.; Stojanović, Zoran A.; Galović, Slobodanka

(2017)

TY  - JOUR
AU  - Todosijevic, S.
AU  - Soskic, Z.
AU  - Stojanović, Zoran A.
AU  - Galović, Slobodanka
PY  - 2017
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/1500
AB  - Experimental verification of thermal memory effects represents a challenge that is important from both fundamental and practical points of view. Recent theoretical studies suggest that the thermal memory effect should lead to thermal resonances in the modulation frequency characteristics of photoacoustic response. Therefore, studies of thermal resonances in photoacoustic response represent an alternative for detection of the thermal memory effect and measurement of thermal memory properties. Since the resonances were not observed, this paper analyzes standard measurement setups and shows that the experimental technique should be optimized to provide a better chance of detection of thermal memory effects by photoacoustic measurements. The results show that a proper selection of modulation frequencies and the knowledge of the approximate transfer function of the electronic part of the photoacoustic measurement system are prerequisites for detection of thermal resonances in the modulation frequency characteristics of photoacoustic response.
T2  - International Journal of Thermophysics
T1  - Analysis of the Measurement System and Optimization of the Measurement Procedure for Detection of Thermal Memory Effects by Photoacoustic Experiments
VL  - 38
IS  - 5
DO  - 10.1007/s10765-017-2215-9
ER  - 
@article{
author = "Todosijevic, S. and Soskic, Z. and Stojanović, Zoran A. and Galović, Slobodanka",
year = "2017",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/1500",
abstract = "Experimental verification of thermal memory effects represents a challenge that is important from both fundamental and practical points of view. Recent theoretical studies suggest that the thermal memory effect should lead to thermal resonances in the modulation frequency characteristics of photoacoustic response. Therefore, studies of thermal resonances in photoacoustic response represent an alternative for detection of the thermal memory effect and measurement of thermal memory properties. Since the resonances were not observed, this paper analyzes standard measurement setups and shows that the experimental technique should be optimized to provide a better chance of detection of thermal memory effects by photoacoustic measurements. The results show that a proper selection of modulation frequencies and the knowledge of the approximate transfer function of the electronic part of the photoacoustic measurement system are prerequisites for detection of thermal resonances in the modulation frequency characteristics of photoacoustic response.",
journal = "International Journal of Thermophysics",
title = "Analysis of the Measurement System and Optimization of the Measurement Procedure for Detection of Thermal Memory Effects by Photoacoustic Experiments",
volume = "38",
number = "5",
doi = "10.1007/s10765-017-2215-9"
}
Todosijevic, S., Soskic, Z., Stojanović, Z. A.,& Galović, S. (2017). Analysis of the Measurement System and Optimization of the Measurement Procedure for Detection of Thermal Memory Effects by Photoacoustic Experiments.
International Journal of Thermophysics, 38(5).
https://doi.org/10.1007/s10765-017-2215-9
Todosijevic S, Soskic Z, Stojanović ZA, Galović S. Analysis of the Measurement System and Optimization of the Measurement Procedure for Detection of Thermal Memory Effects by Photoacoustic Experiments. International Journal of Thermophysics. 2017;38(5)
Todosijevic S., Soskic Z., Stojanović Zoran A., Galović Slobodanka, "Analysis of the Measurement System and Optimization of the Measurement Procedure for Detection of Thermal Memory Effects by Photoacoustic Experiments" International Journal of Thermophysics, 38, no. 5 (2017),
https://doi.org/10.1007/s10765-017-2215-9 .

Theory of photoacoustic effect in media with thermal memory

Galović, Slobodanka; Soskic, Z.; Popović, Milan; Čevizović, Dalibor; Stojanović, Zoran A.

(2014)

TY  - JOUR
AU  - Galović, Slobodanka
AU  - Soskic, Z.
AU  - Popović, Milan
AU  - Čevizović, Dalibor
AU  - Stojanović, Zoran A.
PY  - 2014
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/84
AB  - This paper presents a model for indirect photoacoustic response that includes thermal memory effects. At low frequencies, the model reduces to the well-known thermal piston model of photoacoustic response given by Rosencweig and Gersho. However, at high frequencies, the presented model predicts resonant behavior of amplitudes and phases of photoacoustic response and determines the respective resonant frequencies. The results of the presented model enable experimental determination of standard thermal properties of solids (thermal diffusivity and thermal conductivity), as well as thermal memory properties, thermal relaxation time, and heat propagation speed. (C) 2014 AIP Publishing LLC.
T2  - Journal of Applied Physics
T1  - Theory of photoacoustic effect in media with thermal memory
VL  - 116
IS  - 2
DO  - 10.1063/1.4885458
ER  - 
@article{
author = "Galović, Slobodanka and Soskic, Z. and Popović, Milan and Čevizović, Dalibor and Stojanović, Zoran A.",
year = "2014",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/84",
abstract = "This paper presents a model for indirect photoacoustic response that includes thermal memory effects. At low frequencies, the model reduces to the well-known thermal piston model of photoacoustic response given by Rosencweig and Gersho. However, at high frequencies, the presented model predicts resonant behavior of amplitudes and phases of photoacoustic response and determines the respective resonant frequencies. The results of the presented model enable experimental determination of standard thermal properties of solids (thermal diffusivity and thermal conductivity), as well as thermal memory properties, thermal relaxation time, and heat propagation speed. (C) 2014 AIP Publishing LLC.",
journal = "Journal of Applied Physics",
title = "Theory of photoacoustic effect in media with thermal memory",
volume = "116",
number = "2",
doi = "10.1063/1.4885458"
}
Galović, S., Soskic, Z., Popović, M., Čevizović, D.,& Stojanović, Z. A. (2014). Theory of photoacoustic effect in media with thermal memory.
Journal of Applied Physics, 116(2).
https://doi.org/10.1063/1.4885458
Galović S, Soskic Z, Popović M, Čevizović D, Stojanović ZA. Theory of photoacoustic effect in media with thermal memory. Journal of Applied Physics. 2014;116(2)
Galović Slobodanka, Soskic Z., Popović Milan, Čevizović Dalibor, Stojanović Zoran A., "Theory of photoacoustic effect in media with thermal memory" Journal of Applied Physics, 116, no. 2 (2014),
https://doi.org/10.1063/1.4885458 .
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Photoacoustic Response of Thin Films - Thermal Memory Influence

Nešić, Mioljub V.; Popović, Marica N.; Stojanović, Zoran A.; Soskic, Zlatan; Galović, Slobodanka

(2013)

TY  - JOUR
AU  - Nešić, Mioljub V.
AU  - Popović, Marica N.
AU  - Stojanović, Zoran A.
AU  - Soskic, Zlatan
AU  - Galović, Slobodanka
PY  - 2013
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/5426
AB  - On the basis of the generalized photoacoustic response model, which includes the influence of thermal memory on both thermoconducting and thermoelastic components, photoacoustic response of thin films is analysed. It is demonstrated that the influence of thermal memory is manifested at frequencies above certain boundary frequency, which depends on thermal memory properties of the sample and its depth. A linear relation, linking heat propagation velocity and measured signal, is derived. Taking into account the confinement of the frequency range imposed by the measuring system, it is indicated that thermal memory properties of non-cristaline thin films can be determined in a photoacoustic experiment.
T2  - Hemijska industrija
T1  - Photoacoustic Response of Thin Films - Thermal Memory Influence
VL  - 67
IS  - 1
SP  - 139
EP  - 146
DO  - 10.2298/HEMIND120302052N
ER  - 
@article{
author = "Nešić, Mioljub V. and Popović, Marica N. and Stojanović, Zoran A. and Soskic, Zlatan and Galović, Slobodanka",
year = "2013",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/5426",
abstract = "On the basis of the generalized photoacoustic response model, which includes the influence of thermal memory on both thermoconducting and thermoelastic components, photoacoustic response of thin films is analysed. It is demonstrated that the influence of thermal memory is manifested at frequencies above certain boundary frequency, which depends on thermal memory properties of the sample and its depth. A linear relation, linking heat propagation velocity and measured signal, is derived. Taking into account the confinement of the frequency range imposed by the measuring system, it is indicated that thermal memory properties of non-cristaline thin films can be determined in a photoacoustic experiment.",
journal = "Hemijska industrija",
title = "Photoacoustic Response of Thin Films - Thermal Memory Influence",
volume = "67",
number = "1",
pages = "139-146",
doi = "10.2298/HEMIND120302052N"
}
Nešić, M. V., Popović, M. N., Stojanović, Z. A., Soskic, Z.,& Galović, S. (2013). Photoacoustic Response of Thin Films - Thermal Memory Influence.
Hemijska industrija, 67(1), 139-146.
https://doi.org/10.2298/HEMIND120302052N
Nešić MV, Popović MN, Stojanović ZA, Soskic Z, Galović S. Photoacoustic Response of Thin Films - Thermal Memory Influence. Hemijska industrija. 2013;67(1):139-146
Nešić Mioljub V., Popović Marica N., Stojanović Zoran A., Soskic Zlatan, Galović Slobodanka, "Photoacoustic Response of Thin Films - Thermal Memory Influence" Hemijska industrija, 67, no. 1 (2013):139-146,
https://doi.org/10.2298/HEMIND120302052N .
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Optical, structural and thermal characterization of gold nanoparticles - poly(vinylalcohol) composite films

Vodnik, Vesna; Abazović, Nadica; Stojanović, Zoran A.; Marinović-Cincović, Milena; Mitrić, Miodrag; Čomor, Mirjana

(2012)

TY  - JOUR
AU  - Vodnik, Vesna
AU  - Abazović, Nadica
AU  - Stojanović, Zoran A.
AU  - Marinović-Cincović, Milena
AU  - Mitrić, Miodrag
AU  - Čomor, Mirjana
PY  - 2012
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/4760
AB  - We report synthesis and characterization of gold NPs/PVA composite films. Gold colloidal NPs were introduced into a PVA matrix by simple solution-casting method to obtain homogenous, transparent, and colored films. NPs and NC films with different contents of inorganic phase (0.7, 1.4, and 2.1 wt %) were characterized by UV/Vis and FTIR spectrophotometry. Dimensions of the colloidal NPs were obtained by TEM (d similar to 15 +/- 3 nm) and compared with results obtained by AFM of NC films. Comparison of thermal properties of the pure PVA and NC films showed that thermal stability is slightly reduced. DSC measurements revealed that T-g and melting temperatures of NCs are higher compared to pure PVA films.
T2  - Journal of Composite Materials
T1  - Optical, structural and thermal characterization of gold nanoparticles - poly(vinylalcohol) composite films
VL  - 46
IS  - 8
SP  - 987
EP  - 995
DO  - 10.1177/0021998311413624
ER  - 
@article{
author = "Vodnik, Vesna and Abazović, Nadica and Stojanović, Zoran A. and Marinović-Cincović, Milena and Mitrić, Miodrag and Čomor, Mirjana",
year = "2012",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/4760",
abstract = "We report synthesis and characterization of gold NPs/PVA composite films. Gold colloidal NPs were introduced into a PVA matrix by simple solution-casting method to obtain homogenous, transparent, and colored films. NPs and NC films with different contents of inorganic phase (0.7, 1.4, and 2.1 wt %) were characterized by UV/Vis and FTIR spectrophotometry. Dimensions of the colloidal NPs were obtained by TEM (d similar to 15 +/- 3 nm) and compared with results obtained by AFM of NC films. Comparison of thermal properties of the pure PVA and NC films showed that thermal stability is slightly reduced. DSC measurements revealed that T-g and melting temperatures of NCs are higher compared to pure PVA films.",
journal = "Journal of Composite Materials",
title = "Optical, structural and thermal characterization of gold nanoparticles - poly(vinylalcohol) composite films",
volume = "46",
number = "8",
pages = "987-995",
doi = "10.1177/0021998311413624"
}
Vodnik, V., Abazović, N., Stojanović, Z. A., Marinović-Cincović, M., Mitrić, M.,& Čomor, M. (2012). Optical, structural and thermal characterization of gold nanoparticles - poly(vinylalcohol) composite films.
Journal of Composite Materials, 46(8), 987-995.
https://doi.org/10.1177/0021998311413624
Vodnik V, Abazović N, Stojanović ZA, Marinović-Cincović M, Mitrić M, Čomor M. Optical, structural and thermal characterization of gold nanoparticles - poly(vinylalcohol) composite films. Journal of Composite Materials. 2012;46(8):987-995
Vodnik Vesna, Abazović Nadica, Stojanović Zoran A., Marinović-Cincović Milena, Mitrić Miodrag, Čomor Mirjana, "Optical, structural and thermal characterization of gold nanoparticles - poly(vinylalcohol) composite films" Journal of Composite Materials, 46, no. 8 (2012):987-995,
https://doi.org/10.1177/0021998311413624 .
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Laser-induced formation of intermetallics in multilayered Al/Ti nano-structures

Peruško, Davor; Petrović, Suzana; Kovač, Janez; Stojanović, Zoran A.; Panjan, Matjaž; Obradović, Marko O.; Milosavljević, Momir

(2012)

TY  - JOUR
AU  - Peruško, Davor
AU  - Petrović, Suzana
AU  - Kovač, Janez
AU  - Stojanović, Zoran A.
AU  - Panjan, Matjaž
AU  - Obradović, Marko O.
AU  - Milosavljević, Momir
PY  - 2012
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/4769
AB  - In this study, multilayered structures consisting of eight (Al/Ti) bilayers deposited by d.c. ion sputtering onto Si (100) wafers, to a total thickness of similar to 300 nm were treated in air with a picosecond-pulsed Nd:YAG laser in a defocused regime. Irradiation was done with 200 successive pulses, at 1,064-nm wavelength, energy per pulse 15 mJ, the incidence angle of similar to 45 degrees, covering an area of 2-mm in diameter. The samples were analyzed by scanning electron microscopy, atomic force microscopy, X-ray photoelectron spectroscopy, and transmission electron microscopy. It was found that laser irradiation-induced melting and a progressed Al-Ti nanoalloying within the top four bilayers (up to a depth of similar to 150 nm), while the underlying part of the multilayered structure remained intact. Another interesting result is that of a regularly rippled surface topography (similar to 1.4-mu m period and 100-nm amplitude) developed throughout the zone of the melted and reacted material.
T2  - Journal of Materials Science
T1  - Laser-induced formation of intermetallics in multilayered Al/Ti nano-structures
VL  - 47
IS  - 10
SP  - 4488
EP  - 4495
DO  - 10.1007/s10853-012-6311-8
ER  - 
@article{
author = "Peruško, Davor and Petrović, Suzana and Kovač, Janez and Stojanović, Zoran A. and Panjan, Matjaž and Obradović, Marko O. and Milosavljević, Momir",
year = "2012",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/4769",
abstract = "In this study, multilayered structures consisting of eight (Al/Ti) bilayers deposited by d.c. ion sputtering onto Si (100) wafers, to a total thickness of similar to 300 nm were treated in air with a picosecond-pulsed Nd:YAG laser in a defocused regime. Irradiation was done with 200 successive pulses, at 1,064-nm wavelength, energy per pulse 15 mJ, the incidence angle of similar to 45 degrees, covering an area of 2-mm in diameter. The samples were analyzed by scanning electron microscopy, atomic force microscopy, X-ray photoelectron spectroscopy, and transmission electron microscopy. It was found that laser irradiation-induced melting and a progressed Al-Ti nanoalloying within the top four bilayers (up to a depth of similar to 150 nm), while the underlying part of the multilayered structure remained intact. Another interesting result is that of a regularly rippled surface topography (similar to 1.4-mu m period and 100-nm amplitude) developed throughout the zone of the melted and reacted material.",
journal = "Journal of Materials Science",
title = "Laser-induced formation of intermetallics in multilayered Al/Ti nano-structures",
volume = "47",
number = "10",
pages = "4488-4495",
doi = "10.1007/s10853-012-6311-8"
}
Peruško, D., Petrović, S., Kovač, J., Stojanović, Z. A., Panjan, M., Obradović, M. O.,& Milosavljević, M. (2012). Laser-induced formation of intermetallics in multilayered Al/Ti nano-structures.
Journal of Materials Science, 47(10), 4488-4495.
https://doi.org/10.1007/s10853-012-6311-8
Peruško D, Petrović S, Kovač J, Stojanović ZA, Panjan M, Obradović MO, Milosavljević M. Laser-induced formation of intermetallics in multilayered Al/Ti nano-structures. Journal of Materials Science. 2012;47(10):4488-4495
Peruško Davor, Petrović Suzana, Kovač Janez, Stojanović Zoran A., Panjan Matjaž, Obradović Marko O., Milosavljević Momir, "Laser-induced formation of intermetallics in multilayered Al/Ti nano-structures" Journal of Materials Science, 47, no. 10 (2012):4488-4495,
https://doi.org/10.1007/s10853-012-6311-8 .
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On the applicability of the effective medium approximation to the photoacoustic response of multilayered structures

Popovic, A.; Soskic, Z.; Stojanović, Zoran A.; Čevizović, Dalibor; Galović, Slobodanka

(2012)

TY  - JOUR
AU  - Popovic, A.
AU  - Soskic, Z.
AU  - Stojanović, Zoran A.
AU  - Čevizović, Dalibor
AU  - Galović, Slobodanka
PY  - 2012
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/6953
AB  - If the model of the photoacoustic (PA) response of an investigated system contains many unknown parameters, as is the case with multilayered samples, then the inverse procedure for the calculation of the parameters is highly sensitive to experimental noise. The problem cannot be solved by developing the experimental setup or by data acquisition methods, but only by an improvement of the theoretical approach. This paper presents an analysis of the applicability of the effective medium approximation to the PA response of multilayered samples. It has been shown that the theory is not applicable to the general case, and explicit expressions for the effective values of thermal diffusivity and heat propagation speed have been derived for some special cases.
T2  - Physica Scripta
T1  - On the applicability of the effective medium approximation to the photoacoustic response of multilayered structures
VL  - T149
DO  - 10.1088/0031-8949/2012/T149/014066
ER  - 
@article{
author = "Popovic, A. and Soskic, Z. and Stojanović, Zoran A. and Čevizović, Dalibor and Galović, Slobodanka",
year = "2012",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/6953",
abstract = "If the model of the photoacoustic (PA) response of an investigated system contains many unknown parameters, as is the case with multilayered samples, then the inverse procedure for the calculation of the parameters is highly sensitive to experimental noise. The problem cannot be solved by developing the experimental setup or by data acquisition methods, but only by an improvement of the theoretical approach. This paper presents an analysis of the applicability of the effective medium approximation to the PA response of multilayered samples. It has been shown that the theory is not applicable to the general case, and explicit expressions for the effective values of thermal diffusivity and heat propagation speed have been derived for some special cases.",
journal = "Physica Scripta",
title = "On the applicability of the effective medium approximation to the photoacoustic response of multilayered structures",
volume = "T149",
doi = "10.1088/0031-8949/2012/T149/014066"
}
Popovic, A., Soskic, Z., Stojanović, Z. A., Čevizović, D.,& Galović, S. (2012). On the applicability of the effective medium approximation to the photoacoustic response of multilayered structures.
Physica Scripta, T149.
https://doi.org/10.1088/0031-8949/2012/T149/014066
Popovic A, Soskic Z, Stojanović ZA, Čevizović D, Galović S. On the applicability of the effective medium approximation to the photoacoustic response of multilayered structures. Physica Scripta. 2012;T149
Popovic A., Soskic Z., Stojanović Zoran A., Čevizović Dalibor, Galović Slobodanka, "On the applicability of the effective medium approximation to the photoacoustic response of multilayered structures" Physica Scripta, T149 (2012),
https://doi.org/10.1088/0031-8949/2012/T149/014066 .
4
4
5

Effect of N4+ and C4+ ion beam bombardment on the optical and structural characteristics of ethylene-norbornene copolymer (TOPAS)

Šiljegović, Milorad; Kačarević-Popović, Zorica M.; Krklješ, Aleksandra N.; Stojanović, Zoran A.; Jovanović, Zoran M.

(2011)

TY  - JOUR
AU  - Šiljegović, Milorad
AU  - Kačarević-Popović, Zorica M.
AU  - Krklješ, Aleksandra N.
AU  - Stojanović, Zoran A.
AU  - Jovanović, Zoran M.
PY  - 2011
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/4263
AB  - Ion bombardment is a suitable tool to modify the optical properties of polymers. In the present study the effect of ion bombardment on the optical absorption of ethylene-norbornene copolymer (TOPAS) was studied using ultraviolet-visible (UV-Vis) and Raman spectroscopy. Polymer samples were bombarded with 60 key C4+ and N4+ ion beams to various fluences ranging from 1.0 x 10(13) to 1.0 x 10(16) cm(-2). The indirect and direct band gaps have been determined. The values of direct band gaps have been found to be greater than the corresponding values of the indirect band gaps. Activation energy has been investigated as the function of ion fluences. The number of carbon atoms per conjugated length is determined according to modified Taucs equation. The correlation between the optical band gap, activation energy for optical transition and the number of carbon atoms per conjugated length as well as chemical structure changes induced by ion beams irradiation have been discussed in the case of ethylene-norbornene copolymer. (C) 2011 Elsevier B.V. All rights reserved.
T2  - Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms
T1  - Effect of N4+ and C4+ ion beam bombardment on the optical and structural characteristics of ethylene-norbornene copolymer (TOPAS)
VL  - 269
IS  - 7
SP  - 708
EP  - 715
DO  - 10.1016/j.nimb.2011.01.134
ER  - 
@article{
author = "Šiljegović, Milorad and Kačarević-Popović, Zorica M. and Krklješ, Aleksandra N. and Stojanović, Zoran A. and Jovanović, Zoran M.",
year = "2011",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/4263",
abstract = "Ion bombardment is a suitable tool to modify the optical properties of polymers. In the present study the effect of ion bombardment on the optical absorption of ethylene-norbornene copolymer (TOPAS) was studied using ultraviolet-visible (UV-Vis) and Raman spectroscopy. Polymer samples were bombarded with 60 key C4+ and N4+ ion beams to various fluences ranging from 1.0 x 10(13) to 1.0 x 10(16) cm(-2). The indirect and direct band gaps have been determined. The values of direct band gaps have been found to be greater than the corresponding values of the indirect band gaps. Activation energy has been investigated as the function of ion fluences. The number of carbon atoms per conjugated length is determined according to modified Taucs equation. The correlation between the optical band gap, activation energy for optical transition and the number of carbon atoms per conjugated length as well as chemical structure changes induced by ion beams irradiation have been discussed in the case of ethylene-norbornene copolymer. (C) 2011 Elsevier B.V. All rights reserved.",
journal = "Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms",
title = "Effect of N4+ and C4+ ion beam bombardment on the optical and structural characteristics of ethylene-norbornene copolymer (TOPAS)",
volume = "269",
number = "7",
pages = "708-715",
doi = "10.1016/j.nimb.2011.01.134"
}
Šiljegović, M., Kačarević-Popović, Z. M., Krklješ, A. N., Stojanović, Z. A.,& Jovanović, Z. M. (2011). Effect of N4+ and C4+ ion beam bombardment on the optical and structural characteristics of ethylene-norbornene copolymer (TOPAS).
Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms, 269(7), 708-715.
https://doi.org/10.1016/j.nimb.2011.01.134
Šiljegović M, Kačarević-Popović ZM, Krklješ AN, Stojanović ZA, Jovanović ZM. Effect of N4+ and C4+ ion beam bombardment on the optical and structural characteristics of ethylene-norbornene copolymer (TOPAS). Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms. 2011;269(7):708-715
Šiljegović Milorad, Kačarević-Popović Zorica M., Krklješ Aleksandra N., Stojanović Zoran A., Jovanović Zoran M., "Effect of N4+ and C4+ ion beam bombardment on the optical and structural characteristics of ethylene-norbornene copolymer (TOPAS)" Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms, 269, no. 7 (2011):708-715,
https://doi.org/10.1016/j.nimb.2011.01.134 .
13
9
12

Polystyrene/hematite composites: thermal degradation kinetics

Kuljanin-Jakovljević, Jadranka Ž.; Marinović-Cincović, Milena; Stojanović, Zoran A.; Krklješ, Aleksandra N.; Abazović, Nadica; Čomor, Mirjana

(2011)

TY  - JOUR
AU  - Kuljanin-Jakovljević, Jadranka Ž.
AU  - Marinović-Cincović, Milena
AU  - Stojanović, Zoran A.
AU  - Krklješ, Aleksandra N.
AU  - Abazović, Nadica
AU  - Čomor, Mirjana
PY  - 2011
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/4262
AB  - The kinetics of thermal degradation of polystyrene/Fe(2)O(3) composites was studied by dynamic thermogravimetry. The samples were heated in nitrogen atmosphere, applying three different heating rates 5, 20, and 40 degrees C/min. We calculated kinetic parameters using modified KAS isoconversional method. Results showed that polystyrene in all composites has higher thermal degradation activation energies compared to pure polystyrene. Maximal activation energy of thermal degradation is achieved for PS/Fe(2)O(3) composite with about 10% of filler. Vyazovkin model-free method was used to predict thermal degradation parameters.
T2  - Journal of Composite Materials
T1  - Polystyrene/hematite composites: thermal degradation kinetics
VL  - 45
IS  - 7
SP  - 839
EP  - 847
DO  - 10.1177/0021998310377940
ER  - 
@article{
author = "Kuljanin-Jakovljević, Jadranka Ž. and Marinović-Cincović, Milena and Stojanović, Zoran A. and Krklješ, Aleksandra N. and Abazović, Nadica and Čomor, Mirjana",
year = "2011",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/4262",
abstract = "The kinetics of thermal degradation of polystyrene/Fe(2)O(3) composites was studied by dynamic thermogravimetry. The samples were heated in nitrogen atmosphere, applying three different heating rates 5, 20, and 40 degrees C/min. We calculated kinetic parameters using modified KAS isoconversional method. Results showed that polystyrene in all composites has higher thermal degradation activation energies compared to pure polystyrene. Maximal activation energy of thermal degradation is achieved for PS/Fe(2)O(3) composite with about 10% of filler. Vyazovkin model-free method was used to predict thermal degradation parameters.",
journal = "Journal of Composite Materials",
title = "Polystyrene/hematite composites: thermal degradation kinetics",
volume = "45",
number = "7",
pages = "839-847",
doi = "10.1177/0021998310377940"
}
Kuljanin-Jakovljević, J. Ž., Marinović-Cincović, M., Stojanović, Z. A., Krklješ, A. N., Abazović, N.,& Čomor, M. (2011). Polystyrene/hematite composites: thermal degradation kinetics.
Journal of Composite Materials, 45(7), 839-847.
https://doi.org/10.1177/0021998310377940
Kuljanin-Jakovljević JŽ, Marinović-Cincović M, Stojanović ZA, Krklješ AN, Abazović N, Čomor M. Polystyrene/hematite composites: thermal degradation kinetics. Journal of Composite Materials. 2011;45(7):839-847
Kuljanin-Jakovljević Jadranka Ž., Marinović-Cincović Milena, Stojanović Zoran A., Krklješ Aleksandra N., Abazović Nadica, Čomor Mirjana, "Polystyrene/hematite composites: thermal degradation kinetics" Journal of Composite Materials, 45, no. 7 (2011):839-847,
https://doi.org/10.1177/0021998310377940 .
1
2
1

Ion irradiation stability of multilayered AlN/TiN nanocomposites

Milosavljević, Momir; Peruško, Davor; Milinović, Velimir; Stojanović, Zoran A.; Zalar, Anton; Kovač, Janez; Jeynes, Chris

(2010)

TY  - JOUR
AU  - Milosavljević, Momir
AU  - Peruško, Davor
AU  - Milinović, Velimir
AU  - Stojanović, Zoran A.
AU  - Zalar, Anton
AU  - Kovač, Janez
AU  - Jeynes, Chris
PY  - 2010
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/3893
AB  - Structural changes in multilayered AlN/TiN nanocomposites upon Ar(+) ion irradiation were investigated. Reactive sputtering was used to deposit (AlN/TiN) x 5 multilayers on Si(1 0 0), to a total thickness of similar to 270 nm. Argon was implanted at 200 keV, to 5 x 10(15)-4 x 10(16) ions cm(-2). The as-deposited multilayers had a very fine columnar nanocrystalline structure, the width of individual grains was up to similar to 10 nm. It was found that this immiscible system exhibits a high ion radiation stability, the AlN and TiN layers remaining well separated, with sharp interfaces. Ion irradiation induced small local density changes and only a slight increase in individual grains, in the region where most damage was deposited by the impact ions. For the highest irradiation fluence there was also some migration of Ti into AlN in this region, which was assigned to excess nitrogen within the AlN layers. Due to these small structural changes, ion irradiation enhanced the mechanical strength of the multilayered nanocomposites.
T2  - Journal of Physics. D: Applied Physics
T1  - Ion irradiation stability of multilayered AlN/TiN nanocomposites
VL  - 43
IS  - 6
DO  - 10.1088/0022-3727/43/6/065302
ER  - 
@article{
author = "Milosavljević, Momir and Peruško, Davor and Milinović, Velimir and Stojanović, Zoran A. and Zalar, Anton and Kovač, Janez and Jeynes, Chris",
year = "2010",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/3893",
abstract = "Structural changes in multilayered AlN/TiN nanocomposites upon Ar(+) ion irradiation were investigated. Reactive sputtering was used to deposit (AlN/TiN) x 5 multilayers on Si(1 0 0), to a total thickness of similar to 270 nm. Argon was implanted at 200 keV, to 5 x 10(15)-4 x 10(16) ions cm(-2). The as-deposited multilayers had a very fine columnar nanocrystalline structure, the width of individual grains was up to similar to 10 nm. It was found that this immiscible system exhibits a high ion radiation stability, the AlN and TiN layers remaining well separated, with sharp interfaces. Ion irradiation induced small local density changes and only a slight increase in individual grains, in the region where most damage was deposited by the impact ions. For the highest irradiation fluence there was also some migration of Ti into AlN in this region, which was assigned to excess nitrogen within the AlN layers. Due to these small structural changes, ion irradiation enhanced the mechanical strength of the multilayered nanocomposites.",
journal = "Journal of Physics. D: Applied Physics",
title = "Ion irradiation stability of multilayered AlN/TiN nanocomposites",
volume = "43",
number = "6",
doi = "10.1088/0022-3727/43/6/065302"
}
Milosavljević, M., Peruško, D., Milinović, V., Stojanović, Z. A., Zalar, A., Kovač, J.,& Jeynes, C. (2010). Ion irradiation stability of multilayered AlN/TiN nanocomposites.
Journal of Physics. D: Applied Physics, 43(6).
https://doi.org/10.1088/0022-3727/43/6/065302
Milosavljević M, Peruško D, Milinović V, Stojanović ZA, Zalar A, Kovač J, Jeynes C. Ion irradiation stability of multilayered AlN/TiN nanocomposites. Journal of Physics. D: Applied Physics. 2010;43(6)
Milosavljević Momir, Peruško Davor, Milinović Velimir, Stojanović Zoran A., Zalar Anton, Kovač Janez, Jeynes Chris, "Ion irradiation stability of multilayered AlN/TiN nanocomposites" Journal of Physics. D: Applied Physics, 43, no. 6 (2010),
https://doi.org/10.1088/0022-3727/43/6/065302 .
23
24
27

Phototermal Spectra of Inhomogeneous Coatings

Popović, Milan; Galović, Slobodanka; Stojanović, Zoran A.

(2009)

TY  - JOUR
AU  - Popović, Milan
AU  - Galović, Slobodanka
AU  - Stojanović, Zoran A.
PY  - 2009
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/6843
AB  - In this paper we demonstrate a theoretical study for photothermal measurements on inhomogeneous coatings. First, a general photothermal mathematical model for thermal gradient materials is presented. Then, we discuss the effects of inhomogeneous thermal properties in photothermal amplitude and phase spectra of coatings. Finally, a method for quantitative depth profiling that makes use of prior knowledge about the type of profile existing in a sample to reduce the instabilities associated with the mathematically ill conditioned task is demonstrated.
T2  - Acta Physica Polonica. Series A: General Physics, Physics of Condensed Matter, Optics and Quantum Electronics, Atomic and Molecular Physics, Applied Physics
T1  - Phototermal Spectra of Inhomogeneous Coatings
VL  - 116
IS  - 4
SP  - 535
EP  - 537
DO  - 10.12693/APhysPolA.116.535
ER  - 
@article{
author = "Popović, Milan and Galović, Slobodanka and Stojanović, Zoran A.",
year = "2009",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/6843",
abstract = "In this paper we demonstrate a theoretical study for photothermal measurements on inhomogeneous coatings. First, a general photothermal mathematical model for thermal gradient materials is presented. Then, we discuss the effects of inhomogeneous thermal properties in photothermal amplitude and phase spectra of coatings. Finally, a method for quantitative depth profiling that makes use of prior knowledge about the type of profile existing in a sample to reduce the instabilities associated with the mathematically ill conditioned task is demonstrated.",
journal = "Acta Physica Polonica. Series A: General Physics, Physics of Condensed Matter, Optics and Quantum Electronics, Atomic and Molecular Physics, Applied Physics",
title = "Phototermal Spectra of Inhomogeneous Coatings",
volume = "116",
number = "4",
pages = "535-537",
doi = "10.12693/APhysPolA.116.535"
}
Popović, M., Galović, S.,& Stojanović, Z. A. (2009). Phototermal Spectra of Inhomogeneous Coatings.
Acta Physica Polonica. Series A: General Physics, Physics of Condensed Matter, Optics and Quantum Electronics, Atomic and Molecular Physics, Applied Physics, 116(4), 535-537.
https://doi.org/10.12693/APhysPolA.116.535
Popović M, Galović S, Stojanović ZA. Phototermal Spectra of Inhomogeneous Coatings. Acta Physica Polonica. Series A: General Physics, Physics of Condensed Matter, Optics and Quantum Electronics, Atomic and Molecular Physics, Applied Physics. 2009;116(4):535-537
Popović Milan, Galović Slobodanka, Stojanović Zoran A., "Phototermal Spectra of Inhomogeneous Coatings" Acta Physica Polonica. Series A: General Physics, Physics of Condensed Matter, Optics and Quantum Electronics, Atomic and Molecular Physics, Applied Physics, 116, no. 4 (2009):535-537,
https://doi.org/10.12693/APhysPolA.116.535 .

Thermal degradation kinetics of polystyrene/cadmium sulfide composites

Kuljanin-Jakovljević, Jadranka Ž.; Marinović-Cincović, Milena; Stojanović, Zoran A.; Krklješ, Aleksandra N.; Abazović, Nadica; Čomor, Mirjana

(2009)

TY  - JOUR
AU  - Kuljanin-Jakovljević, Jadranka Ž.
AU  - Marinović-Cincović, Milena
AU  - Stojanović, Zoran A.
AU  - Krklješ, Aleksandra N.
AU  - Abazović, Nadica
AU  - Čomor, Mirjana
PY  - 2009
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/3720
AB  - The thermal degradation kinetics of polystyrene/CdS composites were studied by thermogravimetry. The samples were heated in nitrogen, with three different heating rates: 5, 20 and 40 degrees C min(-1). We calculated kinetic parameters using KAS isoconversion method. The results showed that the maximum activation energy of thermal degradation is achieved for PS/CdS composite with about 10% of the CdS filler. Higher concentration of CdS in the composite (20%) induced acceleration of the thermal degradation, approaching the rate of degradation of the pure polystyrene matrix. (C) 2009 Elsevier Ltd. All rights reserved.
T2  - Polymer Degradation and Stability
T1  - Thermal degradation kinetics of polystyrene/cadmium sulfide composites
VL  - 94
IS  - 6
SP  - 891
EP  - 897
DO  - 10.1016/j.polymdegradstab.2009.03.004
ER  - 
@article{
author = "Kuljanin-Jakovljević, Jadranka Ž. and Marinović-Cincović, Milena and Stojanović, Zoran A. and Krklješ, Aleksandra N. and Abazović, Nadica and Čomor, Mirjana",
year = "2009",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/3720",
abstract = "The thermal degradation kinetics of polystyrene/CdS composites were studied by thermogravimetry. The samples were heated in nitrogen, with three different heating rates: 5, 20 and 40 degrees C min(-1). We calculated kinetic parameters using KAS isoconversion method. The results showed that the maximum activation energy of thermal degradation is achieved for PS/CdS composite with about 10% of the CdS filler. Higher concentration of CdS in the composite (20%) induced acceleration of the thermal degradation, approaching the rate of degradation of the pure polystyrene matrix. (C) 2009 Elsevier Ltd. All rights reserved.",
journal = "Polymer Degradation and Stability",
title = "Thermal degradation kinetics of polystyrene/cadmium sulfide composites",
volume = "94",
number = "6",
pages = "891-897",
doi = "10.1016/j.polymdegradstab.2009.03.004"
}
Kuljanin-Jakovljević, J. Ž., Marinović-Cincović, M., Stojanović, Z. A., Krklješ, A. N., Abazović, N.,& Čomor, M. (2009). Thermal degradation kinetics of polystyrene/cadmium sulfide composites.
Polymer Degradation and Stability, 94(6), 891-897.
https://doi.org/10.1016/j.polymdegradstab.2009.03.004
Kuljanin-Jakovljević JŽ, Marinović-Cincović M, Stojanović ZA, Krklješ AN, Abazović N, Čomor M. Thermal degradation kinetics of polystyrene/cadmium sulfide composites. Polymer Degradation and Stability. 2009;94(6):891-897
Kuljanin-Jakovljević Jadranka Ž., Marinović-Cincović Milena, Stojanović Zoran A., Krklješ Aleksandra N., Abazović Nadica, Čomor Mirjana, "Thermal degradation kinetics of polystyrene/cadmium sulfide composites" Polymer Degradation and Stability, 94, no. 6 (2009):891-897,
https://doi.org/10.1016/j.polymdegradstab.2009.03.004 .
34
34
39

Photothermal microscopy: a step from thermal wave visualization to spatially localized thermal analysis

Galović, Slobodanka; Stojanović, Zoran A.; Čevizović, Dalibor; Popović, Milan

(2008)

TY  - JOUR
AU  - Galović, Slobodanka
AU  - Stojanović, Zoran A.
AU  - Čevizović, Dalibor
AU  - Popović, Milan
PY  - 2008
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/3576
AB  - The calculation of photothermal response detected by a photothermal microscope is presented. By using a technique based on Greens functions and integral transforms, a model for laser-induced temperature distribution functions has been derived. The mathematical method for solution of inverse problem is proposed. It suggests that photothermal microscopy, besides imaging subsurface of solids, has the potential for quantitative thermal analysis of varioussamples.
T2  - Journal of Microscopy, Oxford
T1  - Photothermal microscopy: a step from thermal wave visualization to spatially localized thermal analysis
VL  - 232
IS  - 3
SP  - 558
EP  - 561
DO  - 10.1111/j.1365-2818.2008.02118.x
ER  - 
@article{
author = "Galović, Slobodanka and Stojanović, Zoran A. and Čevizović, Dalibor and Popović, Milan",
year = "2008",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/3576",
abstract = "The calculation of photothermal response detected by a photothermal microscope is presented. By using a technique based on Greens functions and integral transforms, a model for laser-induced temperature distribution functions has been derived. The mathematical method for solution of inverse problem is proposed. It suggests that photothermal microscopy, besides imaging subsurface of solids, has the potential for quantitative thermal analysis of varioussamples.",
journal = "Journal of Microscopy, Oxford",
title = "Photothermal microscopy: a step from thermal wave visualization to spatially localized thermal analysis",
volume = "232",
number = "3",
pages = "558-561",
doi = "10.1111/j.1365-2818.2008.02118.x"
}
Galović, S., Stojanović, Z. A., Čevizović, D.,& Popović, M. (2008). Photothermal microscopy: a step from thermal wave visualization to spatially localized thermal analysis.
Journal of Microscopy, Oxford, 232(3), 558-561.
https://doi.org/10.1111/j.1365-2818.2008.02118.x
Galović S, Stojanović ZA, Čevizović D, Popović M. Photothermal microscopy: a step from thermal wave visualization to spatially localized thermal analysis. Journal of Microscopy, Oxford. 2008;232(3):558-561
Galović Slobodanka, Stojanović Zoran A., Čevizović Dalibor, Popović Milan, "Photothermal microscopy: a step from thermal wave visualization to spatially localized thermal analysis" Journal of Microscopy, Oxford, 232, no. 3 (2008):558-561,
https://doi.org/10.1111/j.1365-2818.2008.02118.x .
1
1
1

Thermal memory effects to photothermal pulse response

Popović, Marica N.; Stojanović, Zoran A.; Galović, Slobodanka

(2007)

TY  - JOUR
AU  - Popović, Marica N.
AU  - Stojanović, Zoran A.
AU  - Galović, Slobodanka
PY  - 2007
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/6738
AB  - An analytical model that describes surface temperature variations of media with thermal memory stimulated by laser pulses was developed. The influence of thermal memory for semi-infinite sample was analyzed by comparing our results with classical model results which neglect the thermal memory of materials for different pulse widths and for different pulse shapes. It was shown that this influence was outstanding around steep changes of the incentive flux and for short incident pulses.
T2  - Hemijska industrija
T1  - Thermal memory effects to photothermal pulse response
VL  - 61
IS  - 2
SP  - 66
EP  - 70
DO  - 10.2298/HEMIND0702066P
ER  - 
@article{
author = "Popović, Marica N. and Stojanović, Zoran A. and Galović, Slobodanka",
year = "2007",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/6738",
abstract = "An analytical model that describes surface temperature variations of media with thermal memory stimulated by laser pulses was developed. The influence of thermal memory for semi-infinite sample was analyzed by comparing our results with classical model results which neglect the thermal memory of materials for different pulse widths and for different pulse shapes. It was shown that this influence was outstanding around steep changes of the incentive flux and for short incident pulses.",
journal = "Hemijska industrija",
title = "Thermal memory effects to photothermal pulse response",
volume = "61",
number = "2",
pages = "66-70",
doi = "10.2298/HEMIND0702066P"
}
Popović, M. N., Stojanović, Z. A.,& Galović, S. (2007). Thermal memory effects to photothermal pulse response.
Hemijska industrija, 61(2), 66-70.
https://doi.org/10.2298/HEMIND0702066P
Popović MN, Stojanović ZA, Galović S. Thermal memory effects to photothermal pulse response. Hemijska industrija. 2007;61(2):66-70
Popović Marica N., Stojanović Zoran A., Galović Slobodanka, "Thermal memory effects to photothermal pulse response" Hemijska industrija, 61, no. 2 (2007):66-70,
https://doi.org/10.2298/HEMIND0702066P .
1
1

Multiple charged nitrogen ion beam irradiation of fullerene thin films

Todorović-Marković, Biljana; Draganic, I.; Marković, Zoran M.; Stojanović, Zoran A.; Mitrić, Miodrag; Romčević, Nebojša Ž.; Romčević, Maja J.; Nikolić, Zoran M.

(2007)

TY  - JOUR
AU  - Todorović-Marković, Biljana
AU  - Draganic, I.
AU  - Marković, Zoran M.
AU  - Stojanović, Zoran A.
AU  - Mitrić, Miodrag
AU  - Romčević, Nebojša Ž.
AU  - Romčević, Maja J.
AU  - Nikolić, Zoran M.
PY  - 2007
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/3175
AB  - In this work, the results of structural modification of fullerene thin films bombarded by multiple charged nitrogen ions have been reported. The properties of as-deposited and irraditated fullerene thin films have been investigated by Raman and FTIR spectroscopy and AFM analysis. After irradiation by multiple charged nitrogen ions (N(2+), N(5+)) new bondings in fullerene films have been formed and the amorphicity has been enhanced at higher doses. Raman and FTIR spectra showed structural changes of deposited films depending on the energy and implantation dose. AFM analysis showed that the ion beam had destroyed the surface ordering. At lower doses the surface order has been characterized by carbon clusters of 500 nm. At higher doses significantly smaller clusters have been formed (200 nm).
T2  - Fullerenes Nanotubes and Carbon Nanostructures
T1  - Multiple charged nitrogen ion beam irradiation of fullerene thin films
VL  - 15
IS  - 2
SP  - 113
EP  - 125
DO  - 10.1080/15363830601179715
ER  - 
@article{
author = "Todorović-Marković, Biljana and Draganic, I. and Marković, Zoran M. and Stojanović, Zoran A. and Mitrić, Miodrag and Romčević, Nebojša Ž. and Romčević, Maja J. and Nikolić, Zoran M.",
year = "2007",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/3175",
abstract = "In this work, the results of structural modification of fullerene thin films bombarded by multiple charged nitrogen ions have been reported. The properties of as-deposited and irraditated fullerene thin films have been investigated by Raman and FTIR spectroscopy and AFM analysis. After irradiation by multiple charged nitrogen ions (N(2+), N(5+)) new bondings in fullerene films have been formed and the amorphicity has been enhanced at higher doses. Raman and FTIR spectra showed structural changes of deposited films depending on the energy and implantation dose. AFM analysis showed that the ion beam had destroyed the surface ordering. At lower doses the surface order has been characterized by carbon clusters of 500 nm. At higher doses significantly smaller clusters have been formed (200 nm).",
journal = "Fullerenes Nanotubes and Carbon Nanostructures",
title = "Multiple charged nitrogen ion beam irradiation of fullerene thin films",
volume = "15",
number = "2",
pages = "113-125",
doi = "10.1080/15363830601179715"
}
Todorović-Marković, B., Draganic, I., Marković, Z. M., Stojanović, Z. A., Mitrić, M., Romčević, N. Ž., Romčević, M. J.,& Nikolić, Z. M. (2007). Multiple charged nitrogen ion beam irradiation of fullerene thin films.
Fullerenes Nanotubes and Carbon Nanostructures, 15(2), 113-125.
https://doi.org/10.1080/15363830601179715
Todorović-Marković B, Draganic I, Marković ZM, Stojanović ZA, Mitrić M, Romčević NŽ, Romčević MJ, Nikolić ZM. Multiple charged nitrogen ion beam irradiation of fullerene thin films. Fullerenes Nanotubes and Carbon Nanostructures. 2007;15(2):113-125
Todorović-Marković Biljana, Draganic I., Marković Zoran M., Stojanović Zoran A., Mitrić Miodrag, Romčević Nebojša Ž., Romčević Maja J., Nikolić Zoran M., "Multiple charged nitrogen ion beam irradiation of fullerene thin films" Fullerenes Nanotubes and Carbon Nanostructures, 15, no. 2 (2007):113-125,
https://doi.org/10.1080/15363830601179715 .
4
4
4

Influence of CdS-filler on the thermal properties of poly(methyl methacrylate)

Kuljanin-Jakovljević, Jadranka Ž.; Stojanović, Zoran A.; Nedeljković, Jovan

(2006)

TY  - JOUR
AU  - Kuljanin-Jakovljević, Jadranka Ž.
AU  - Stojanović, Zoran A.
AU  - Nedeljković, Jovan
PY  - 2006
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/3056
T2  - Journal of Materials Science
T1  - Influence of CdS-filler on the thermal properties of poly(methyl methacrylate)
VL  - 41
IS  - 15
SP  - 5014
EP  - 5016
DO  - 10.1007/s10853-006-0111-y
ER  - 
@article{
author = "Kuljanin-Jakovljević, Jadranka Ž. and Stojanović, Zoran A. and Nedeljković, Jovan",
year = "2006",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/3056",
journal = "Journal of Materials Science",
title = "Influence of CdS-filler on the thermal properties of poly(methyl methacrylate)",
volume = "41",
number = "15",
pages = "5014-5016",
doi = "10.1007/s10853-006-0111-y"
}
Kuljanin-Jakovljević, J. Ž., Stojanović, Z. A.,& Nedeljković, J. (2006). Influence of CdS-filler on the thermal properties of poly(methyl methacrylate).
Journal of Materials Science, 41(15), 5014-5016.
https://doi.org/10.1007/s10853-006-0111-y
Kuljanin-Jakovljević JŽ, Stojanović ZA, Nedeljković J. Influence of CdS-filler on the thermal properties of poly(methyl methacrylate). Journal of Materials Science. 2006;41(15):5014-5016
Kuljanin-Jakovljević Jadranka Ž., Stojanović Zoran A., Nedeljković Jovan, "Influence of CdS-filler on the thermal properties of poly(methyl methacrylate)" Journal of Materials Science, 41, no. 15 (2006):5014-5016,
https://doi.org/10.1007/s10853-006-0111-y .
17
15
19

Crystallinity changes and melting behavior of the uniaxially oriented iPP exposed to high doses of gamma radiation

Stojanović, Zoran A.; Kačarević-Popović, Zorica M.; Galović, Slobodanka; Miličević, Dejan S.; Suljovrujić, Edin H.

(2005)

TY  - JOUR
AU  - Stojanović, Zoran A.
AU  - Kačarević-Popović, Zorica M.
AU  - Galović, Slobodanka
AU  - Miličević, Dejan S.
AU  - Suljovrujić, Edin H.
PY  - 2005
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/2846
AB  - Samples of isotactic polypropylene (iPP) oriented via solid-state stretching at elevated temperature (draw ratios of 1, 3, 5, 7.5, 10, 12.5 and 15) were analyzed. Gel content measurements, wide-angle X-ray diffraction (WAXD) and differential scanning calorimetry (DSC) were used to study the effects of high absorbed doses of gamma irradiation, up to 700 kGy. Conclusions derived according to the different methods are compared. The results indicate that the changes in the structure of pristine iPP due to orientation also significantly affect the radiation induced changes in crystallinity, melting behavior and gel production. The role of highly strained tie molecules in radiation-induced increase in crystallinity at doses lower than 250 kGy, for oriented iPP is discussed in terms of the scission and strain-energy relief process on the crystals followed by the growth of new, thin-crystal, lamellae. At higher doses (300, 500 and 700 kGy) radiation-induced decrease in crystallinity is explained in terms of the effect of crosslinking. Orientation induced supermolecular structural changes are related to the decrease in the gel production with draw ratio. (C) 2004 Published by Elsevier Ltd.
T2  - Polymer Degradation and Stability
T1  - Crystallinity changes and melting behavior of the uniaxially oriented iPP exposed to high doses of gamma radiation
VL  - 87
IS  - 2
SP  - 279
EP  - 286
DO  - 10.1016/j.polymdegradstab.2004.07.021
ER  - 
@article{
author = "Stojanović, Zoran A. and Kačarević-Popović, Zorica M. and Galović, Slobodanka and Miličević, Dejan S. and Suljovrujić, Edin H.",
year = "2005",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/2846",
abstract = "Samples of isotactic polypropylene (iPP) oriented via solid-state stretching at elevated temperature (draw ratios of 1, 3, 5, 7.5, 10, 12.5 and 15) were analyzed. Gel content measurements, wide-angle X-ray diffraction (WAXD) and differential scanning calorimetry (DSC) were used to study the effects of high absorbed doses of gamma irradiation, up to 700 kGy. Conclusions derived according to the different methods are compared. The results indicate that the changes in the structure of pristine iPP due to orientation also significantly affect the radiation induced changes in crystallinity, melting behavior and gel production. The role of highly strained tie molecules in radiation-induced increase in crystallinity at doses lower than 250 kGy, for oriented iPP is discussed in terms of the scission and strain-energy relief process on the crystals followed by the growth of new, thin-crystal, lamellae. At higher doses (300, 500 and 700 kGy) radiation-induced decrease in crystallinity is explained in terms of the effect of crosslinking. Orientation induced supermolecular structural changes are related to the decrease in the gel production with draw ratio. (C) 2004 Published by Elsevier Ltd.",
journal = "Polymer Degradation and Stability",
title = "Crystallinity changes and melting behavior of the uniaxially oriented iPP exposed to high doses of gamma radiation",
volume = "87",
number = "2",
pages = "279-286",
doi = "10.1016/j.polymdegradstab.2004.07.021"
}
Stojanović, Z. A., Kačarević-Popović, Z. M., Galović, S., Miličević, D. S.,& Suljovrujić, E. H. (2005). Crystallinity changes and melting behavior of the uniaxially oriented iPP exposed to high doses of gamma radiation.
Polymer Degradation and Stability, 87(2), 279-286.
https://doi.org/10.1016/j.polymdegradstab.2004.07.021
Stojanović ZA, Kačarević-Popović ZM, Galović S, Miličević DS, Suljovrujić EH. Crystallinity changes and melting behavior of the uniaxially oriented iPP exposed to high doses of gamma radiation. Polymer Degradation and Stability. 2005;87(2):279-286
Stojanović Zoran A., Kačarević-Popović Zorica M., Galović Slobodanka, Miličević Dejan S., Suljovrujić Edin H., "Crystallinity changes and melting behavior of the uniaxially oriented iPP exposed to high doses of gamma radiation" Polymer Degradation and Stability, 87, no. 2 (2005):279-286,
https://doi.org/10.1016/j.polymdegradstab.2004.07.021 .
60
58
64

Heat flow in thermoplastics with thermal history effects

Galović, Slobodanka; Kostoski, D; Stojanović, Zoran A.; Suljovrujić, Edin H.; Stamboliev, G

(2003)

TY  - JOUR
AU  - Galović, Slobodanka
AU  - Kostoski, D
AU  - Stojanović, Zoran A.
AU  - Suljovrujić, Edin H.
AU  - Stamboliev, G
PY  - 2003
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/6356
AB  - In thermosets and semicrystalline and/or amorphous thermoplastics, processing can result in internal molecular stress, which relieves on reheating (thermal history effects). The relief of these stresses appears as a small endothermic relaxation even after glass transition. Non reversing transitions in polymers also indicate the existence of thermal history effects. These effects can be modeled thereby improving interpretation of many experimental results. In this paper, a mathematical model for thermal history effects and heat flow in thermoplastics has been developed.
T2  - Materials Science Forum
T1  - Heat flow in thermoplastics with thermal history effects
VL  - 413
SP  - 231
EP  - 236
ER  - 
@article{
author = "Galović, Slobodanka and Kostoski, D and Stojanović, Zoran A. and Suljovrujić, Edin H. and Stamboliev, G",
year = "2003",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/6356",
abstract = "In thermosets and semicrystalline and/or amorphous thermoplastics, processing can result in internal molecular stress, which relieves on reheating (thermal history effects). The relief of these stresses appears as a small endothermic relaxation even after glass transition. Non reversing transitions in polymers also indicate the existence of thermal history effects. These effects can be modeled thereby improving interpretation of many experimental results. In this paper, a mathematical model for thermal history effects and heat flow in thermoplastics has been developed.",
journal = "Materials Science Forum",
title = "Heat flow in thermoplastics with thermal history effects",
volume = "413",
pages = "231-236"
}
Galović, S., Kostoski, D., Stojanović, Z. A., Suljovrujić, E. H.,& Stamboliev, G. (2003). Heat flow in thermoplastics with thermal history effects.
Materials Science Forum, 413, 231-236.
Galović S, Kostoski D, Stojanović ZA, Suljovrujić EH, Stamboliev G. Heat flow in thermoplastics with thermal history effects. Materials Science Forum. 2003;413:231-236
Galović Slobodanka, Kostoski D, Stojanović Zoran A., Suljovrujić Edin H., Stamboliev G, "Heat flow in thermoplastics with thermal history effects" Materials Science Forum, 413 (2003):231-236
1

Structure and characteristics of the hot pressed hydroxyapatite/poly-L-lactide composite

Ignjatović, Nenad L.; Suljovrujić, Edin H.; Stojanović, Zoran A.; Uskoković, Dragan

(Belgrade : International Institute for the Science of Sintering, 2002)

TY  - JOUR
AU  - Ignjatović, Nenad L.
AU  - Suljovrujić, Edin H.
AU  - Stojanović, Zoran A.
AU  - Uskoković, Dragan
PY  - 2002
UR  - http://dais.sanu.ac.rs/123456789/234
UR  - http://www.itn.sanu.ac.rs/opus4/frontdoor/index/index/docId/493
UR  - http://www.itn.sanu.ac.rs/opus4/files/493/0350-820X0201079I.pdf
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/7367
AB  - Hydroxyapatite/poly-L-lactide (HAp/PLL) composite biomaterial can be obtained by different processing methods. Three-dimensional blocks of HAp/PLLA composite biomaterial with mechanical characteristics close to the natural bone tissue can be obtained by hot pressing procedure. Effects of synthesis and compacting on the structure and characteristics of the HAp/PLLA composite biomaterial were studied in this work. Using wade angle X-ray structural analyses (WAXS), differentially scanning calorimetry (DSC), thermogravimetric analysis (TGA) and infrared (IR) spectroscopy, the changes occurring in the material during synthesis and hot pressing were monitored. Surface microstructure was analyzed by scanning electronic microscopy (SEM) coupled with electron-dispersion analysis (EDX). The results obtained indicate a possible decrease in the degree of crystallinity with hot pressing time increase. A block of HAp/PLLA composite biomaterial with 1.6 times lower crystallinity of the polymer phase was obtained by hot pressing in a given time interval with a maximum of 60 minutes. Results of TG analysis show that PLLA stability decreases with increasing hot pressing time, and vice versa. IR study proved that neither destructive changes in constituents nor formation of new phases occurred during hot pressing.
PB  - Belgrade : International Institute for the Science of Sintering
T2  - Science of Sintering
T1  - Structure and characteristics of the hot pressed hydroxyapatite/poly-L-lactide composite
SP  - 79
EP  - 93
DO  - 10.2298/SOS0201079
ER  - 
@article{
author = "Ignjatović, Nenad L. and Suljovrujić, Edin H. and Stojanović, Zoran A. and Uskoković, Dragan",
year = "2002",
url = "http://dais.sanu.ac.rs/123456789/234, http://www.itn.sanu.ac.rs/opus4/frontdoor/index/index/docId/493, http://www.itn.sanu.ac.rs/opus4/files/493/0350-820X0201079I.pdf, http://vinar.vin.bg.ac.rs/handle/123456789/7367",
abstract = "Hydroxyapatite/poly-L-lactide (HAp/PLL) composite biomaterial can be obtained by different processing methods. Three-dimensional blocks of HAp/PLLA composite biomaterial with mechanical characteristics close to the natural bone tissue can be obtained by hot pressing procedure. Effects of synthesis and compacting on the structure and characteristics of the HAp/PLLA composite biomaterial were studied in this work. Using wade angle X-ray structural analyses (WAXS), differentially scanning calorimetry (DSC), thermogravimetric analysis (TGA) and infrared (IR) spectroscopy, the changes occurring in the material during synthesis and hot pressing were monitored. Surface microstructure was analyzed by scanning electronic microscopy (SEM) coupled with electron-dispersion analysis (EDX). The results obtained indicate a possible decrease in the degree of crystallinity with hot pressing time increase. A block of HAp/PLLA composite biomaterial with 1.6 times lower crystallinity of the polymer phase was obtained by hot pressing in a given time interval with a maximum of 60 minutes. Results of TG analysis show that PLLA stability decreases with increasing hot pressing time, and vice versa. IR study proved that neither destructive changes in constituents nor formation of new phases occurred during hot pressing.",
publisher = "Belgrade : International Institute for the Science of Sintering",
journal = "Science of Sintering",
title = "Structure and characteristics of the hot pressed hydroxyapatite/poly-L-lactide composite",
pages = "79-93",
doi = "10.2298/SOS0201079"
}
Ignjatović, N. L., Suljovrujić, E. H., Stojanović, Z. A.,& Uskoković, D. (2002). Structure and characteristics of the hot pressed hydroxyapatite/poly-L-lactide composite.
Science of Sintering
Belgrade : International Institute for the Science of Sintering., 79-93.
https://doi.org/10.2298/SOS0201079
Ignjatović NL, Suljovrujić EH, Stojanović ZA, Uskoković D. Structure and characteristics of the hot pressed hydroxyapatite/poly-L-lactide composite. Science of Sintering. 2002;:79-93
Ignjatović Nenad L., Suljovrujić Edin H., Stojanović Zoran A., Uskoković Dragan, "Structure and characteristics of the hot pressed hydroxyapatite/poly-L-lactide composite" Science of Sintering (2002):79-93,
https://doi.org/10.2298/SOS0201079 .

Recrystallization processes induced by accelerated ageing in isotactic polypropylene of different morphologies

Dudić, Duško; Kostoski, D; Đoković, Vladimir; Stojanović, Zoran A.

(2000)

TY  - JOUR
AU  - Dudić, Duško
AU  - Kostoski, D
AU  - Đoković, Vladimir
AU  - Stojanović, Zoran A.
PY  - 2000
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/2313
AB  - Recrystallizaton processes in isotactic polypropylene (iPP) of different morphologies, which occur during accelerated ageing, were studied using differential scanning calorimetry (DSC) and density measurements. Morphology and initial crystallinity were found to have an influence on recrystallization. Differences in recrystallization behavior of iPP were considered as the consequence of the concentration and strain of taut-tie molecules. (C) 2000 Elsevier Science Ltd. All rights reserved.
T2  - Polymer Degradation and Stability
T1  - Recrystallization processes induced by accelerated ageing in isotactic polypropylene of different morphologies
VL  - 67
IS  - 2
SP  - 233
EP  - 237
DO  - 10.1016/S0141-3910(99)00118-4
ER  - 
@article{
author = "Dudić, Duško and Kostoski, D and Đoković, Vladimir and Stojanović, Zoran A.",
year = "2000",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/2313",
abstract = "Recrystallizaton processes in isotactic polypropylene (iPP) of different morphologies, which occur during accelerated ageing, were studied using differential scanning calorimetry (DSC) and density measurements. Morphology and initial crystallinity were found to have an influence on recrystallization. Differences in recrystallization behavior of iPP were considered as the consequence of the concentration and strain of taut-tie molecules. (C) 2000 Elsevier Science Ltd. All rights reserved.",
journal = "Polymer Degradation and Stability",
title = "Recrystallization processes induced by accelerated ageing in isotactic polypropylene of different morphologies",
volume = "67",
number = "2",
pages = "233-237",
doi = "10.1016/S0141-3910(99)00118-4"
}
Dudić, D., Kostoski, D., Đoković, V.,& Stojanović, Z. A. (2000). Recrystallization processes induced by accelerated ageing in isotactic polypropylene of different morphologies.
Polymer Degradation and Stability, 67(2), 233-237.
https://doi.org/10.1016/S0141-3910(99)00118-4
Dudić D, Kostoski D, Đoković V, Stojanović ZA. Recrystallization processes induced by accelerated ageing in isotactic polypropylene of different morphologies. Polymer Degradation and Stability. 2000;67(2):233-237
Dudić Duško, Kostoski D, Đoković Vladimir, Stojanović Zoran A., "Recrystallization processes induced by accelerated ageing in isotactic polypropylene of different morphologies" Polymer Degradation and Stability, 67, no. 2 (2000):233-237,
https://doi.org/10.1016/S0141-3910(99)00118-4 .
14
14
18

DSC melting behavior of drawn and gamma-irradiated low-density polyethylene

Kačarević-Popović, Zorica M.; Kostoski, D; Stojanović, Zoran A.; Đoković, Vladimir

(1997)

TY  - JOUR
AU  - Kačarević-Popović, Zorica M.
AU  - Kostoski, D
AU  - Stojanović, Zoran A.
AU  - Đoković, Vladimir
PY  - 1997
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/2064
AB  - Differential scanning calorimetry measurements (DSC) were used to study the effect of gamma irradiation on the melting behavior of drawn low-density polyethylene (LDPE). The drawing, to various draw ratios (5, 6, 9, 10 and 11), was performed via solid-state stretching at 80 degrees C. It was found that for the lower doses (50kGy) there is an increase in melting temperature with increasing draw ratio, A. For the higher doses, the melting temperatures decrease slightly. The increase in heat of fusion with absorbed dose is explained in terms of the strain-energy relief process on the crystals by the scission of tie-molecules and the growth of new thin lamellae. (C) 1997 Elsevier Science Limited.
T2  - Polymer Degradation and Stability
T1  - DSC melting behavior of drawn and gamma-irradiated low-density polyethylene
VL  - 56
IS  - 2
SP  - 227
EP  - 233
DO  - 10.1016/S0141-3910(96)00174-7
ER  - 
@article{
author = "Kačarević-Popović, Zorica M. and Kostoski, D and Stojanović, Zoran A. and Đoković, Vladimir",
year = "1997",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/2064",
abstract = "Differential scanning calorimetry measurements (DSC) were used to study the effect of gamma irradiation on the melting behavior of drawn low-density polyethylene (LDPE). The drawing, to various draw ratios (5, 6, 9, 10 and 11), was performed via solid-state stretching at 80 degrees C. It was found that for the lower doses (50kGy) there is an increase in melting temperature with increasing draw ratio, A. For the higher doses, the melting temperatures decrease slightly. The increase in heat of fusion with absorbed dose is explained in terms of the strain-energy relief process on the crystals by the scission of tie-molecules and the growth of new thin lamellae. (C) 1997 Elsevier Science Limited.",
journal = "Polymer Degradation and Stability",
title = "DSC melting behavior of drawn and gamma-irradiated low-density polyethylene",
volume = "56",
number = "2",
pages = "227-233",
doi = "10.1016/S0141-3910(96)00174-7"
}
Kačarević-Popović, Z. M., Kostoski, D., Stojanović, Z. A.,& Đoković, V. (1997). DSC melting behavior of drawn and gamma-irradiated low-density polyethylene.
Polymer Degradation and Stability, 56(2), 227-233.
https://doi.org/10.1016/S0141-3910(96)00174-7
Kačarević-Popović ZM, Kostoski D, Stojanović ZA, Đoković V. DSC melting behavior of drawn and gamma-irradiated low-density polyethylene. Polymer Degradation and Stability. 1997;56(2):227-233
Kačarević-Popović Zorica M., Kostoski D, Stojanović Zoran A., Đoković Vladimir, "DSC melting behavior of drawn and gamma-irradiated low-density polyethylene" Polymer Degradation and Stability, 56, no. 2 (1997):227-233,
https://doi.org/10.1016/S0141-3910(96)00174-7 .
12
13
13

Aging of drawn and gamma-irradiated isotactic polypropylene using high oxygen pressure

Stojanović, Zoran A.; Kostoski, D; Dudić, Duško; Kačarević-Popović, Zorica M.

(1996)

TY  - JOUR
AU  - Stojanović, Zoran A.
AU  - Kostoski, D
AU  - Dudić, Duško
AU  - Kačarević-Popović, Zorica M.
PY  - 1996
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/1964
AB  - Drawn and undrawn samples of gamma-irradiated isotactic polypropylene (iPP) were aged under 0.5 MPa of oxygen at 80 degrees C. Radiation-induced and post-irradiation effects were observed using infra-red spectroscopy. Changes of the elongation at break and strength at break as functions of aging time and draw ratio were determined from the stress-strain measurements. It is shown that the strength at break of drawn and gamma-irradiated iPP after accelerated aging for more than 20 h is still high ( GT 50 N/mm(2)). These data were related to the radiation effects in drawn and undrawn iPP.
T2  - Polymer Degradation and Stability
T1  - Aging of drawn and gamma-irradiated isotactic polypropylene using high oxygen pressure
VL  - 51
IS  - 1
SP  - 45
EP  - 49
DO  - 10.1016/0141-3910(95)00199-9
ER  - 
@article{
author = "Stojanović, Zoran A. and Kostoski, D and Dudić, Duško and Kačarević-Popović, Zorica M.",
year = "1996",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/1964",
abstract = "Drawn and undrawn samples of gamma-irradiated isotactic polypropylene (iPP) were aged under 0.5 MPa of oxygen at 80 degrees C. Radiation-induced and post-irradiation effects were observed using infra-red spectroscopy. Changes of the elongation at break and strength at break as functions of aging time and draw ratio were determined from the stress-strain measurements. It is shown that the strength at break of drawn and gamma-irradiated iPP after accelerated aging for more than 20 h is still high ( GT 50 N/mm(2)). These data were related to the radiation effects in drawn and undrawn iPP.",
journal = "Polymer Degradation and Stability",
title = "Aging of drawn and gamma-irradiated isotactic polypropylene using high oxygen pressure",
volume = "51",
number = "1",
pages = "45-49",
doi = "10.1016/0141-3910(95)00199-9"
}
Stojanović, Z. A., Kostoski, D., Dudić, D.,& Kačarević-Popović, Z. M. (1996). Aging of drawn and gamma-irradiated isotactic polypropylene using high oxygen pressure.
Polymer Degradation and Stability, 51(1), 45-49.
https://doi.org/10.1016/0141-3910(95)00199-9
Stojanović ZA, Kostoski D, Dudić D, Kačarević-Popović ZM. Aging of drawn and gamma-irradiated isotactic polypropylene using high oxygen pressure. Polymer Degradation and Stability. 1996;51(1):45-49
Stojanović Zoran A., Kostoski D, Dudić Duško, Kačarević-Popović Zorica M., "Aging of drawn and gamma-irradiated isotactic polypropylene using high oxygen pressure" Polymer Degradation and Stability, 51, no. 1 (1996):45-49,
https://doi.org/10.1016/0141-3910(95)00199-9 .
9
9
10