TY  - JOUR
AU  - Petrović, Suzana
AU  - Milovanović, Dubravka S.
AU  - Salatić, Branislav
AU  - Peruško, Davor
AU  - Kovač, Janez
AU  - Dražić, Goran
AU  - Mitrić, Miodrag
AU  - Trtica, Milan
AU  - Jelenković, Branislav
PY  - 2015
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/807
AB  - Bimetallic NiAu and complex NiO:Au nanoparticles were formed by laser ablation of Ni target immersed in the colloidal gold solution. Effect of laser parameters (pulse duration, fluences and ablation times) on size and composition of nanoparticles was investigated by ablating the target with two Nd:YAG lasers at 1064 nm, operating with different pulse durations, 150 ps and 20 ns. Stronger ablation of the Ni target and subsequient synthesis of nanoparticles is achieved with picosecond pulses, compared to the nanoparticles production with nanosecond pulses, because the former ablation induces activation of different reactions between species in the colloidal solution. Shape, size and composition of the synthesized nanopraticles were found to correlate with the concentration of Ni species in the colloidal solution. Higher Ni concentration leads to formation of larger NiAu nanoparticles in form of solid solution. Smaller nanoparticles with lower Ni concentration in the colloidal solution were achieved by their synthesis during nanosecond pulses, when the obtained distribution of composition corresponds to the NiO matrix with incorporated golden nanoparticles. The results also demonstrate that the formation of bimetallic NiAu and complex NiO:Au nanoparticles were possible by means of laser ablation in liquids. (C) 2015 Elsevier B.V. All rights reserved.
PB  - Elsevier
T2  - Materials Chemistry and Physics
T1  - Composition and structure of NiAu nanoparticles formed by laser ablation of Ni target in Au colloidal solution
VL  - 166
SP  - 223
EP  - 232
DO  - 10.1016/j.matchemphys.2015.10.007
ER  - 

@article{
author = "Petrović, Suzana and Milovanović, Dubravka S. and Salatić, Branislav and Peruško, Davor and Kovač, Janez and Dražić, Goran and Mitrić, Miodrag and Trtica, Milan and Jelenković, Branislav",
year = "2015",
abstract = "Bimetallic NiAu and complex NiO:Au nanoparticles were formed by laser ablation of Ni target immersed in the colloidal gold solution. Effect of laser parameters (pulse duration, fluences and ablation times) on size and composition of nanoparticles was investigated by ablating the target with two Nd:YAG lasers at 1064 nm, operating with different pulse durations, 150 ps and 20 ns. Stronger ablation of the Ni target and subsequient synthesis of nanoparticles is achieved with picosecond pulses, compared to the nanoparticles production with nanosecond pulses, because the former ablation induces activation of different reactions between species in the colloidal solution. Shape, size and composition of the synthesized nanopraticles were found to correlate with the concentration of Ni species in the colloidal solution. Higher Ni concentration leads to formation of larger NiAu nanoparticles in form of solid solution. Smaller nanoparticles with lower Ni concentration in the colloidal solution were achieved by their synthesis during nanosecond pulses, when the obtained distribution of composition corresponds to the NiO matrix with incorporated golden nanoparticles. The results also demonstrate that the formation of bimetallic NiAu and complex NiO:Au nanoparticles were possible by means of laser ablation in liquids. (C) 2015 Elsevier B.V. All rights reserved.",
publisher = "Elsevier",
journal = "Materials Chemistry and Physics",
title = "Composition and structure of NiAu nanoparticles formed by laser ablation of Ni target in Au colloidal solution",
volume = "166",
pages = "223-232",
doi = "10.1016/j.matchemphys.2015.10.007"
}

Petrović, S., Milovanović, D. S., Salatić, B., Peruško, D., Kovač, J., Dražić, G., Mitrić, M., Trtica, M.,& Jelenković, B.. (2015). Composition and structure of NiAu nanoparticles formed by laser ablation of Ni target in Au colloidal solution. in Materials Chemistry and Physics
Elsevier., 166, 223-232.
https://doi.org/10.1016/j.matchemphys.2015.10.007

Petrović S, Milovanović DS, Salatić B, Peruško D, Kovač J, Dražić G, Mitrić M, Trtica M, Jelenković B. Composition and structure of NiAu nanoparticles formed by laser ablation of Ni target in Au colloidal solution. in Materials Chemistry and Physics. 2015;166:223-232.
doi:10.1016/j.matchemphys.2015.10.007 .

Petrović, Suzana, Milovanović, Dubravka S., Salatić, Branislav, Peruško, Davor, Kovač, Janez, Dražić, Goran, Mitrić, Miodrag, Trtica, Milan, Jelenković, Branislav, "Composition and structure of NiAu nanoparticles formed by laser ablation of Ni target in Au colloidal solution" in Materials Chemistry and Physics, 166 (2015):223-232,
https://doi.org/10.1016/j.matchemphys.2015.10.007 . .

TY  - JOUR
AU  - Peruško, Davor
AU  - Kovač, Janez
AU  - Petrović, Suzana
AU  - Dražić, Goran
AU  - Mitrić, Miodrag
AU  - Milosavljević, Momir
AU  - Ciganović, Jovan
PY  - 2015
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/7080
AB  - Multilayer structures, consisting of 15 alternate Ti and Al thin films, and covered with thicker Ti layer, were deposited on a Si substrate to a total thickness of 900 nm. Laser treatment was performed in air by defocused Nd:YAG laser pulses (150 ps) with energies of 7 and 10 mJ covering an area of 3 mm in diameter (fluences were 0.1 and 0.14 J cm(-2) respectively). Laser beam was scanned over the 5 x 5 mm surface area. Characterizations were done by Auger electron spectroscopy, X-ray diffraction, X-ray photoelectron spectroscopy, atomic force microscopy and transmission electron microscopy. Nano-hardness measurements were performed by Vickers method with applied load of 5 mN. Obtained results show that irradiation with picosecond laser pulses leads to the formation of Ti2O3 in the top Ti layer. This process is more pronounced for higher energy and/or higher number of applied laser pulses. On the surface of all samples very thin amorphous TiO2 layer was formed. Laser irradiation induces surface melting and transformation of relatively flat surface into mosaic shaped one for samples treated with higher energy and higher number of applied laser pulses. Irradiation at smaller energy did not induce any noticeably mixing between Al and Ti beneath the covered Ti layer. Some mixing of Al and Ti appeared in the sample irradiated with higher energy of laser pulses. (C) 2015 Elsevier B.V. All rights reserved.
T2  - Thin Solid Films
T1  - Intermixing and phase transformations in Al/Ti multilayer system induced by picosecond laser beam
VL  - 591
SP  - 357
EP  - 362
DO  - 10.1016/j.tsf.2015.03.030
ER  - 

@article{
author = "Peruško, Davor and Kovač, Janez and Petrović, Suzana and Dražić, Goran and Mitrić, Miodrag and Milosavljević, Momir and Ciganović, Jovan",
year = "2015",
abstract = "Multilayer structures, consisting of 15 alternate Ti and Al thin films, and covered with thicker Ti layer, were deposited on a Si substrate to a total thickness of 900 nm. Laser treatment was performed in air by defocused Nd:YAG laser pulses (150 ps) with energies of 7 and 10 mJ covering an area of 3 mm in diameter (fluences were 0.1 and 0.14 J cm(-2) respectively). Laser beam was scanned over the 5 x 5 mm surface area. Characterizations were done by Auger electron spectroscopy, X-ray diffraction, X-ray photoelectron spectroscopy, atomic force microscopy and transmission electron microscopy. Nano-hardness measurements were performed by Vickers method with applied load of 5 mN. Obtained results show that irradiation with picosecond laser pulses leads to the formation of Ti2O3 in the top Ti layer. This process is more pronounced for higher energy and/or higher number of applied laser pulses. On the surface of all samples very thin amorphous TiO2 layer was formed. Laser irradiation induces surface melting and transformation of relatively flat surface into mosaic shaped one for samples treated with higher energy and higher number of applied laser pulses. Irradiation at smaller energy did not induce any noticeably mixing between Al and Ti beneath the covered Ti layer. Some mixing of Al and Ti appeared in the sample irradiated with higher energy of laser pulses. (C) 2015 Elsevier B.V. All rights reserved.",
journal = "Thin Solid Films",
title = "Intermixing and phase transformations in Al/Ti multilayer system induced by picosecond laser beam",
volume = "591",
pages = "357-362",
doi = "10.1016/j.tsf.2015.03.030"
}

Peruško, D., Kovač, J., Petrović, S., Dražić, G., Mitrić, M., Milosavljević, M.,& Ciganović, J.. (2015). Intermixing and phase transformations in Al/Ti multilayer system induced by picosecond laser beam. in Thin Solid Films, 591, 357-362.
https://doi.org/10.1016/j.tsf.2015.03.030

Peruško D, Kovač J, Petrović S, Dražić G, Mitrić M, Milosavljević M, Ciganović J. Intermixing and phase transformations in Al/Ti multilayer system induced by picosecond laser beam. in Thin Solid Films. 2015;591:357-362.
doi:10.1016/j.tsf.2015.03.030 .

Peruško, Davor, Kovač, Janez, Petrović, Suzana, Dražić, Goran, Mitrić, Miodrag, Milosavljević, Momir, Ciganović, Jovan, "Intermixing and phase transformations in Al/Ti multilayer system induced by picosecond laser beam" in Thin Solid Films, 591 (2015):357-362,
https://doi.org/10.1016/j.tsf.2015.03.030 . .

TY  - JOUR
AU  - Peruško, Davor
AU  - Cizmovic, M.
AU  - Petrović, Suzana
AU  - Siketic, Z.
AU  - Mitrić, Miodrag
AU  - Pelicon, P.
AU  - Dražić, Goran
AU  - Kovač, Janez
AU  - Milinović, Velimir
AU  - Milosavljević, Momir
PY  - 2013
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/5457
AB  - Multilayered 5x(Al/Ti) structures, deposited on a Si substrate to a total thickness of 130 nm, were treated by unfocused Nd:YAG laser pulses (150 ps) with energies of 85 and 65 mJ. Irradiations were performed in air with 10, 50 and 100 successive laser pulses. Characterizations were done by using Rutherford backscattering spectrometry (RBS), elastic recoil detection analysis (ERDA), x-ray diffraction (XRD) and transmission electron microscopy (TEM). The results obtained show that laser irradiation, at either energy, induced almost full intermixing of deposited layers and formation of intermetallic compounds, but this was more pronounced for the applied laser pulses with a higher energy. The intermixed layer-silicon interface remains intact for all numbers of applied laser pulses and for both energies. The formation of an oxide layer on the sample surfaces was also observed, the thickness of which is greater for the higher laser beam energy.
T2  - Laser Physics
T1  - Laser irradiation of nano-metric Al/Ti multilayers
VL  - 23
IS  - 3
DO  - 10.1088/1054-660X/23/3/036005
ER  - 

@article{
author = "Peruško, Davor and Cizmovic, M. and Petrović, Suzana and Siketic, Z. and Mitrić, Miodrag and Pelicon, P. and Dražić, Goran and Kovač, Janez and Milinović, Velimir and Milosavljević, Momir",
year = "2013",
abstract = "Multilayered 5x(Al/Ti) structures, deposited on a Si substrate to a total thickness of 130 nm, were treated by unfocused Nd:YAG laser pulses (150 ps) with energies of 85 and 65 mJ. Irradiations were performed in air with 10, 50 and 100 successive laser pulses. Characterizations were done by using Rutherford backscattering spectrometry (RBS), elastic recoil detection analysis (ERDA), x-ray diffraction (XRD) and transmission electron microscopy (TEM). The results obtained show that laser irradiation, at either energy, induced almost full intermixing of deposited layers and formation of intermetallic compounds, but this was more pronounced for the applied laser pulses with a higher energy. The intermixed layer-silicon interface remains intact for all numbers of applied laser pulses and for both energies. The formation of an oxide layer on the sample surfaces was also observed, the thickness of which is greater for the higher laser beam energy.",
journal = "Laser Physics",
title = "Laser irradiation of nano-metric Al/Ti multilayers",
volume = "23",
number = "3",
doi = "10.1088/1054-660X/23/3/036005"
}

Peruško, D., Cizmovic, M., Petrović, S., Siketic, Z., Mitrić, M., Pelicon, P., Dražić, G., Kovač, J., Milinović, V.,& Milosavljević, M.. (2013). Laser irradiation of nano-metric Al/Ti multilayers. in Laser Physics, 23(3).
https://doi.org/10.1088/1054-660X/23/3/036005

Peruško D, Cizmovic M, Petrović S, Siketic Z, Mitrić M, Pelicon P, Dražić G, Kovač J, Milinović V, Milosavljević M. Laser irradiation of nano-metric Al/Ti multilayers. in Laser Physics. 2013;23(3).
doi:10.1088/1054-660X/23/3/036005 .

Peruško, Davor, Cizmovic, M., Petrović, Suzana, Siketic, Z., Mitrić, Miodrag, Pelicon, P., Dražić, Goran, Kovač, Janez, Milinović, Velimir, Milosavljević, Momir, "Laser irradiation of nano-metric Al/Ti multilayers" in Laser Physics, 23, no. 3 (2013),
https://doi.org/10.1088/1054-660X/23/3/036005 . .

TY  - JOUR
AU  - Cizmovic, M.
AU  - Kovač, Janez
AU  - Milosavljević, Momir
AU  - Petrović, Suzana
AU  - Dražić, Goran
AU  - Mitrić, Miodrag
AU  - Obradović, Marko O.
AU  - Schaaf, P.
AU  - Peruško, Davor
PY  - 2013
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/7016
AB  - Structural and compositional modifications of multilayered Al/Ti nano-structures induced by nanosecond laser pulses were investigated. Five and ten (Al/Ti) bilayers, with total thicknesses of 130 and 260 nm, respectively, were deposited by dc ion sputtering onto (100) Si wafers. The structures were irradiated in air with nanosecond Nd:YAG unfocused laser pulses. Characterizations of the samples were performed by x-ray diffraction analysis, Auger electron spectroscopy, atomic force microscopy and transmission electron microscopy. It was found that laser treatment of both structures induced complete intermixing of all deposited metallic films, their mixing with silicon substrate and formation of Al-Ti intermetallic and silicide compounds. This effect was achieved even for one applied laser pulse. Comparing these results with that for picosecond laser treatment of similar multilayered structures, it was concluded that materials involved within the heat diffusion length participated in the formation of new phases.
T2  - Physica Scripta
T1  - Intermixing in Al/Ti multilayer structures induced by nanosecond laser pulses
VL  - T157
DO  - 10.1088/0031-8949/2013/T157/014008
ER  - 

@article{
author = "Cizmovic, M. and Kovač, Janez and Milosavljević, Momir and Petrović, Suzana and Dražić, Goran and Mitrić, Miodrag and Obradović, Marko O. and Schaaf, P. and Peruško, Davor",
year = "2013",
abstract = "Structural and compositional modifications of multilayered Al/Ti nano-structures induced by nanosecond laser pulses were investigated. Five and ten (Al/Ti) bilayers, with total thicknesses of 130 and 260 nm, respectively, were deposited by dc ion sputtering onto (100) Si wafers. The structures were irradiated in air with nanosecond Nd:YAG unfocused laser pulses. Characterizations of the samples were performed by x-ray diffraction analysis, Auger electron spectroscopy, atomic force microscopy and transmission electron microscopy. It was found that laser treatment of both structures induced complete intermixing of all deposited metallic films, their mixing with silicon substrate and formation of Al-Ti intermetallic and silicide compounds. This effect was achieved even for one applied laser pulse. Comparing these results with that for picosecond laser treatment of similar multilayered structures, it was concluded that materials involved within the heat diffusion length participated in the formation of new phases.",
journal = "Physica Scripta",
title = "Intermixing in Al/Ti multilayer structures induced by nanosecond laser pulses",
volume = "T157",
doi = "10.1088/0031-8949/2013/T157/014008"
}

Cizmovic, M., Kovač, J., Milosavljević, M., Petrović, S., Dražić, G., Mitrić, M., Obradović, M. O., Schaaf, P.,& Peruško, D.. (2013). Intermixing in Al/Ti multilayer structures induced by nanosecond laser pulses. in Physica Scripta, T157.
https://doi.org/10.1088/0031-8949/2013/T157/014008

Cizmovic M, Kovač J, Milosavljević M, Petrović S, Dražić G, Mitrić M, Obradović MO, Schaaf P, Peruško D. Intermixing in Al/Ti multilayer structures induced by nanosecond laser pulses. in Physica Scripta. 2013;T157.
doi:10.1088/0031-8949/2013/T157/014008 .

Cizmovic, M., Kovač, Janez, Milosavljević, Momir, Petrović, Suzana, Dražić, Goran, Mitrić, Miodrag, Obradović, Marko O., Schaaf, P., Peruško, Davor, "Intermixing in Al/Ti multilayer structures induced by nanosecond laser pulses" in Physica Scripta, T157 (2013),
https://doi.org/10.1088/0031-8949/2013/T157/014008 . .

TY  - JOUR
AU  - Kleut, Duška
AU  - Jovanović, Svetlana P.
AU  - Marković, Zoran M.
AU  - Kepić, Dejan P.
AU  - Tošić, Dragana
AU  - Romčević, Nebojša Ž.
AU  - Marinović-Cincović, Milena
AU  - Dramićanin, Miroslav
AU  - Holclajtner-Antunović, Ivanka D.
AU  - Pavlović, Vladimir B.
AU  - Dražić, Goran
AU  - Milosavljević, Momir
AU  - Todorović-Marković, Biljana
PY  - 2012
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/5047
AB  - A systematic study of the gamma irradiation effects on single wall carbon nanotube (SWCNT) structure was conducted. Nanotubes were exposed to different doses of gamma irradiation in three media. Irradiation was carried out in air, water and aqueous ammonia. Thermogravimetric analysis (TGA), Fourier transform infrared spectroscopy (FTIR), elemental analysis (EA) and Raman spectroscopy confirmed the changes in the SWCNT structure. TGA measurements showed the highest percentage of introduced groups for the SWCNTs irradiated with 100 kGy. FTIR spectroscopy provided evidence for the attachment of hydroxyl, carboxyl and nitrile functional groups to the SWCNT sidewalls. Those groups were confirmed by EA. All irradiated SWCNTs had hydroxyl and carboxyl groups irrelevant to media used for irradiation, but nitrile functional groups were only identified in SWCNTs irradiated in aqueous ammonia. Raman spectroscopy indicated that the degree of disorder in the carbon nanotube structure correlates with the irradiation dose. For the nanotubes irradiated with the dose of 100 kGy, the Raman I-D/I-G ratio was three times higher than for the pristine ones. Atomic force microscopy showed a 50% decrease in nanotube length at a radiation dose of 100 kGy. Scanning and transmission electron microscopies showed significant changes in the morphology and structure of gamma irradiated SWCNTs. (C) 2012 Elsevier Inc. All rights reserved.
T2  - Materials Characterization
T1  - Comparison of structural properties of pristine and gamma irradiated single-wall carbon nanotubes: Effects of medium and irradiation dose
VL  - 72
SP  - 37
EP  - 45
DO  - 10.1016/j.matchar.2012.07.002
ER  - 

@article{
author = "Kleut, Duška and Jovanović, Svetlana P. and Marković, Zoran M. and Kepić, Dejan P. and Tošić, Dragana and Romčević, Nebojša Ž. and Marinović-Cincović, Milena and Dramićanin, Miroslav and Holclajtner-Antunović, Ivanka D. and Pavlović, Vladimir B. and Dražić, Goran and Milosavljević, Momir and Todorović-Marković, Biljana",
year = "2012",
abstract = "A systematic study of the gamma irradiation effects on single wall carbon nanotube (SWCNT) structure was conducted. Nanotubes were exposed to different doses of gamma irradiation in three media. Irradiation was carried out in air, water and aqueous ammonia. Thermogravimetric analysis (TGA), Fourier transform infrared spectroscopy (FTIR), elemental analysis (EA) and Raman spectroscopy confirmed the changes in the SWCNT structure. TGA measurements showed the highest percentage of introduced groups for the SWCNTs irradiated with 100 kGy. FTIR spectroscopy provided evidence for the attachment of hydroxyl, carboxyl and nitrile functional groups to the SWCNT sidewalls. Those groups were confirmed by EA. All irradiated SWCNTs had hydroxyl and carboxyl groups irrelevant to media used for irradiation, but nitrile functional groups were only identified in SWCNTs irradiated in aqueous ammonia. Raman spectroscopy indicated that the degree of disorder in the carbon nanotube structure correlates with the irradiation dose. For the nanotubes irradiated with the dose of 100 kGy, the Raman I-D/I-G ratio was three times higher than for the pristine ones. Atomic force microscopy showed a 50% decrease in nanotube length at a radiation dose of 100 kGy. Scanning and transmission electron microscopies showed significant changes in the morphology and structure of gamma irradiated SWCNTs. (C) 2012 Elsevier Inc. All rights reserved.",
journal = "Materials Characterization",
title = "Comparison of structural properties of pristine and gamma irradiated single-wall carbon nanotubes: Effects of medium and irradiation dose",
volume = "72",
pages = "37-45",
doi = "10.1016/j.matchar.2012.07.002"
}

Kleut, D., Jovanović, S. P., Marković, Z. M., Kepić, D. P., Tošić, D., Romčević, N. Ž., Marinović-Cincović, M., Dramićanin, M., Holclajtner-Antunović, I. D., Pavlović, V. B., Dražić, G., Milosavljević, M.,& Todorović-Marković, B.. (2012). Comparison of structural properties of pristine and gamma irradiated single-wall carbon nanotubes: Effects of medium and irradiation dose. in Materials Characterization, 72, 37-45.
https://doi.org/10.1016/j.matchar.2012.07.002

Kleut D, Jovanović SP, Marković ZM, Kepić DP, Tošić D, Romčević NŽ, Marinović-Cincović M, Dramićanin M, Holclajtner-Antunović ID, Pavlović VB, Dražić G, Milosavljević M, Todorović-Marković B. Comparison of structural properties of pristine and gamma irradiated single-wall carbon nanotubes: Effects of medium and irradiation dose. in Materials Characterization. 2012;72:37-45.
doi:10.1016/j.matchar.2012.07.002 .

Kleut, Duška, Jovanović, Svetlana P., Marković, Zoran M., Kepić, Dejan P., Tošić, Dragana, Romčević, Nebojša Ž., Marinović-Cincović, Milena, Dramićanin, Miroslav, Holclajtner-Antunović, Ivanka D., Pavlović, Vladimir B., Dražić, Goran, Milosavljević, Momir, Todorović-Marković, Biljana, "Comparison of structural properties of pristine and gamma irradiated single-wall carbon nanotubes: Effects of medium and irradiation dose" in Materials Characterization, 72 (2012):37-45,
https://doi.org/10.1016/j.matchar.2012.07.002 . .

TY  - JOUR
AU  - Milosavljević, Momir
AU  - Stojanovic, N.
AU  - Peruško, Davor
AU  - Timotijević, B.
AU  - Toprek, Dragan
AU  - Kovač, Janez
AU  - Dražić, Goran
AU  - Jeynes, C.
PY  - 2012
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/4631
AB  - Interactions induced in Al/Ti multilayers by implantation of Ar ions at room temperature were investgated. Initial structures consisted of (Al/Ti) x 5 multilayers deposited by d.c. ion sputtering on Si(1 0 0) wafers, to a total thickness of similar to 250 nm. They were irradiated with 200 keV Ar+ ions, to the fluences from 5 x 10(15) to 4 x 10(16) ions/cm(2). It was found that ion irradiation induced a progressed intermixing of the multilayer constituents and Al-Ti nanoalloying for the highest applied fluence. The resulting nanocrystalline structure had a graded composition with non-reacted or interdiffused Al and Ti, and gamma-AlTi and AlTi3 intermetallic phases. Most intense reactivity was observed around mid depth of the multilayers, where most energy was deposited by the impact ions. It is presumed that Al-Ti chemical reaction is triggered by thermal spikes and further enhanced by chemical driving forces. The applied processing can be interesting for fabrication of tightly bond multilayered structures with gradual changes of their composition and properties. (C) 2011 Elsevier B. V. All rights reserved.
T2  - Applied Surface Science
T1  - Ion irradiation induced Al-Ti interaction in nano-scaled Al/Ti multilayers
VL  - 258
IS  - 6
SP  - 2043
EP  - 2046
DO  - 10.1016/j.apsusc.2011.04.107
ER  - 

@article{
author = "Milosavljević, Momir and Stojanovic, N. and Peruško, Davor and Timotijević, B. and Toprek, Dragan and Kovač, Janez and Dražić, Goran and Jeynes, C.",
year = "2012",
abstract = "Interactions induced in Al/Ti multilayers by implantation of Ar ions at room temperature were investgated. Initial structures consisted of (Al/Ti) x 5 multilayers deposited by d.c. ion sputtering on Si(1 0 0) wafers, to a total thickness of similar to 250 nm. They were irradiated with 200 keV Ar+ ions, to the fluences from 5 x 10(15) to 4 x 10(16) ions/cm(2). It was found that ion irradiation induced a progressed intermixing of the multilayer constituents and Al-Ti nanoalloying for the highest applied fluence. The resulting nanocrystalline structure had a graded composition with non-reacted or interdiffused Al and Ti, and gamma-AlTi and AlTi3 intermetallic phases. Most intense reactivity was observed around mid depth of the multilayers, where most energy was deposited by the impact ions. It is presumed that Al-Ti chemical reaction is triggered by thermal spikes and further enhanced by chemical driving forces. The applied processing can be interesting for fabrication of tightly bond multilayered structures with gradual changes of their composition and properties. (C) 2011 Elsevier B. V. All rights reserved.",
journal = "Applied Surface Science",
title = "Ion irradiation induced Al-Ti interaction in nano-scaled Al/Ti multilayers",
volume = "258",
number = "6",
pages = "2043-2046",
doi = "10.1016/j.apsusc.2011.04.107"
}

Milosavljević, M., Stojanovic, N., Peruško, D., Timotijević, B., Toprek, D., Kovač, J., Dražić, G.,& Jeynes, C.. (2012). Ion irradiation induced Al-Ti interaction in nano-scaled Al/Ti multilayers. in Applied Surface Science, 258(6), 2043-2046.
https://doi.org/10.1016/j.apsusc.2011.04.107

Milosavljević M, Stojanovic N, Peruško D, Timotijević B, Toprek D, Kovač J, Dražić G, Jeynes C. Ion irradiation induced Al-Ti interaction in nano-scaled Al/Ti multilayers. in Applied Surface Science. 2012;258(6):2043-2046.
doi:10.1016/j.apsusc.2011.04.107 .

Milosavljević, Momir, Stojanovic, N., Peruško, Davor, Timotijević, B., Toprek, Dragan, Kovač, Janez, Dražić, Goran, Jeynes, C., "Ion irradiation induced Al-Ti interaction in nano-scaled Al/Ti multilayers" in Applied Surface Science, 258, no. 6 (2012):2043-2046,
https://doi.org/10.1016/j.apsusc.2011.04.107 . .

TY  - JOUR
AU  - Petrović, Suzana
AU  - Peruško, Davor
AU  - Mitrić, Miodrag
AU  - Kovač, Janez
AU  - Dražić, Goran
AU  - Gaković, Biljana M.
AU  - Homewood, Kevin P.
AU  - Milosavljević, Momir
PY  - 2012
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/4839
AB  - Ion implantation and thermal annealing effects on composition and structure of Ni/Ti multilayer have been studied and reported in this paper. The thin films composed of five (Ni/Ti) bilayers were deposited by d.c. ion sputtering on (100) Si wafers to a total thickness of similar to 180 nm. Ion irradiations were performed by 180 keV Ar+ ions with fluence of 6 x 10(16) ions cm(-2). After deposition and implantation, the samples were annealed at 400 degrees C for 30 min in an inert ambient. Composition and structural characterizations were performed by X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS) and transmission electron microscopy (TEM). Annealing of as-deposited samples at 400 degrees C induces a progressed interaction between Ni and Ti layers with the initial formation of NiTi alloy phase. Progressed alloying was achieved for the ion fluence of 6 x 10(16) ions cm(-2) and the formed structure is composed of NiTi compound, only at depth around the projected ion range. In the deeper layers, beyond the projected range of implanted ions, the diffusion of Ni atoms can lead to solid state amorphization. Subsequent annealing at 400 degrees C for 30 min enabled enhanced interaction between intermixed Ni and Ti layers, and in the layers close to the Si substrate the conditions for the formation of intermetallic compound are created. (c) 2012 Elsevier Ltd. All rights reserved.
T2  - Intermetallics
T1  - Formation of intermetallic phase in Ni/Ti multilayer structure by ion implantation and thermal annealing
VL  - 25
SP  - 27
EP  - 33
DO  - 10.1016/j.intermet.2012.02.007
ER  - 

@article{
author = "Petrović, Suzana and Peruško, Davor and Mitrić, Miodrag and Kovač, Janez and Dražić, Goran and Gaković, Biljana M. and Homewood, Kevin P. and Milosavljević, Momir",
year = "2012",
abstract = "Ion implantation and thermal annealing effects on composition and structure of Ni/Ti multilayer have been studied and reported in this paper. The thin films composed of five (Ni/Ti) bilayers were deposited by d.c. ion sputtering on (100) Si wafers to a total thickness of similar to 180 nm. Ion irradiations were performed by 180 keV Ar+ ions with fluence of 6 x 10(16) ions cm(-2). After deposition and implantation, the samples were annealed at 400 degrees C for 30 min in an inert ambient. Composition and structural characterizations were performed by X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS) and transmission electron microscopy (TEM). Annealing of as-deposited samples at 400 degrees C induces a progressed interaction between Ni and Ti layers with the initial formation of NiTi alloy phase. Progressed alloying was achieved for the ion fluence of 6 x 10(16) ions cm(-2) and the formed structure is composed of NiTi compound, only at depth around the projected ion range. In the deeper layers, beyond the projected range of implanted ions, the diffusion of Ni atoms can lead to solid state amorphization. Subsequent annealing at 400 degrees C for 30 min enabled enhanced interaction between intermixed Ni and Ti layers, and in the layers close to the Si substrate the conditions for the formation of intermetallic compound are created. (c) 2012 Elsevier Ltd. All rights reserved.",
journal = "Intermetallics",
title = "Formation of intermetallic phase in Ni/Ti multilayer structure by ion implantation and thermal annealing",
volume = "25",
pages = "27-33",
doi = "10.1016/j.intermet.2012.02.007"
}

Petrović, S., Peruško, D., Mitrić, M., Kovač, J., Dražić, G., Gaković, B. M., Homewood, K. P.,& Milosavljević, M.. (2012). Formation of intermetallic phase in Ni/Ti multilayer structure by ion implantation and thermal annealing. in Intermetallics, 25, 27-33.
https://doi.org/10.1016/j.intermet.2012.02.007

Petrović S, Peruško D, Mitrić M, Kovač J, Dražić G, Gaković BM, Homewood KP, Milosavljević M. Formation of intermetallic phase in Ni/Ti multilayer structure by ion implantation and thermal annealing. in Intermetallics. 2012;25:27-33.
doi:10.1016/j.intermet.2012.02.007 .

Petrović, Suzana, Peruško, Davor, Mitrić, Miodrag, Kovač, Janez, Dražić, Goran, Gaković, Biljana M., Homewood, Kevin P., Milosavljević, Momir, "Formation of intermetallic phase in Ni/Ti multilayer structure by ion implantation and thermal annealing" in Intermetallics, 25 (2012):27-33,
https://doi.org/10.1016/j.intermet.2012.02.007 . .