Maglic, KD

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  • Maglic, KD (13)
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Author's Bibliography

Thermal diffusivity measurements of thermographite

Maglic, KD; Milošević, Nenad D.

(2004)

TY  - JOUR
AU  - Maglic, KD
AU  - Milošević, Nenad D.
PY  - 2004
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/2761
AB  - This paper presents results of measurements of a graphite proposed to serve as a thermophysical property reference or standard reference material. The reported measurements contribute to a program launched in 1999 by Anter Corp. with the objective to provide a replacement for the NIST thermal property reference material RM AXM-5Q graphite whose supplies were being exhausted. Measurements of the thermal diffusivity performed on five specimens taken from different positions within a large graphite block between room temperature and 1300 K were in good mutual agreement. Measurements of NIST reference AXM-5Q graphite sample supplied to minimize effects of different contributors to a common base were also in good agreement, both with the NBS reference function established by Hust in 1984 and contributions to the NBS project from the Vinca Institute of Nuclear Sciences carried out in 1979. The influence of different data reduction techniques on the measured thermal diffusivity values is illustrated and discussed.
T2  - International Journal of Thermophysics
T1  - Thermal diffusivity measurements of thermographite
VL  - 25
IS  - 1
SP  - 237
EP  - 247
DO  - 10.1023/B:IJOT.0000022337.88761.a4
ER  - 
@article{
author = "Maglic, KD and Milošević, Nenad D.",
year = "2004",
abstract = "This paper presents results of measurements of a graphite proposed to serve as a thermophysical property reference or standard reference material. The reported measurements contribute to a program launched in 1999 by Anter Corp. with the objective to provide a replacement for the NIST thermal property reference material RM AXM-5Q graphite whose supplies were being exhausted. Measurements of the thermal diffusivity performed on five specimens taken from different positions within a large graphite block between room temperature and 1300 K were in good mutual agreement. Measurements of NIST reference AXM-5Q graphite sample supplied to minimize effects of different contributors to a common base were also in good agreement, both with the NBS reference function established by Hust in 1984 and contributions to the NBS project from the Vinca Institute of Nuclear Sciences carried out in 1979. The influence of different data reduction techniques on the measured thermal diffusivity values is illustrated and discussed.",
journal = "International Journal of Thermophysics",
title = "Thermal diffusivity measurements of thermographite",
volume = "25",
number = "1",
pages = "237-247",
doi = "10.1023/B:IJOT.0000022337.88761.a4"
}
Maglic, K.,& Milošević, N. D.. (2004). Thermal diffusivity measurements of thermographite. in International Journal of Thermophysics, 25(1), 237-247.
https://doi.org/10.1023/B:IJOT.0000022337.88761.a4
Maglic K, Milošević ND. Thermal diffusivity measurements of thermographite. in International Journal of Thermophysics. 2004;25(1):237-247.
doi:10.1023/B:IJOT.0000022337.88761.a4 .
Maglic, KD, Milošević, Nenad D., "Thermal diffusivity measurements of thermographite" in International Journal of Thermophysics, 25, no. 1 (2004):237-247,
https://doi.org/10.1023/B:IJOT.0000022337.88761.a4 . .
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1
1

Simultaneous estimation of the thermal diffusivity and thermal contact resistance of thin solid films and coatings using the two-dimensional flash method

Milošević, Nenad D.; Raynaud, M; Maglic, KD

(2003)

TY  - JOUR
AU  - Milošević, Nenad D.
AU  - Raynaud, M
AU  - Maglic, KD
PY  - 2003
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/6366
AB  - The paper presents a description of the two-dimensional flash method for measuring the thermal diffusivity of deposited thin solid films and coatings, including the possibility of determination of the thermal contact resistance and the thermal anisotropy of the film or coating. Giving an analytical solution of the transient temperature as the consequence of transient two-dimensional heat conduction through the sample, the paper describes the estimation possibilities for the thermal diffusivity and thermal contact resistance, as well as for other typically unknown parameters of the model. Particular attention was given to the influence of known parameters on the estimation possibilities of unknown parameters. With such a study, essential information for the modeling of the experiment is provided. The experimental setups and demonstration of the proposed data reduction procedure are presented at the end of the paper. Having different estimation possibilities for measuring different locations of the sample, the results suggest using the data of several transient temperatures for more reliable and accurate simultaneous estimation of the thermal diffusivity and thermal contact resistance of deposited thin films and coatings.
T2  - International Journal of Thermophysics
T1  - Simultaneous estimation of the thermal diffusivity and thermal contact resistance of thin solid films and coatings using the two-dimensional flash method
VL  - 24
IS  - 3
SP  - 799
EP  - 819
DO  - 10.1023/A:1024000602687
ER  - 
@article{
author = "Milošević, Nenad D. and Raynaud, M and Maglic, KD",
year = "2003",
abstract = "The paper presents a description of the two-dimensional flash method for measuring the thermal diffusivity of deposited thin solid films and coatings, including the possibility of determination of the thermal contact resistance and the thermal anisotropy of the film or coating. Giving an analytical solution of the transient temperature as the consequence of transient two-dimensional heat conduction through the sample, the paper describes the estimation possibilities for the thermal diffusivity and thermal contact resistance, as well as for other typically unknown parameters of the model. Particular attention was given to the influence of known parameters on the estimation possibilities of unknown parameters. With such a study, essential information for the modeling of the experiment is provided. The experimental setups and demonstration of the proposed data reduction procedure are presented at the end of the paper. Having different estimation possibilities for measuring different locations of the sample, the results suggest using the data of several transient temperatures for more reliable and accurate simultaneous estimation of the thermal diffusivity and thermal contact resistance of deposited thin films and coatings.",
journal = "International Journal of Thermophysics",
title = "Simultaneous estimation of the thermal diffusivity and thermal contact resistance of thin solid films and coatings using the two-dimensional flash method",
volume = "24",
number = "3",
pages = "799-819",
doi = "10.1023/A:1024000602687"
}
Milošević, N. D., Raynaud, M.,& Maglic, K.. (2003). Simultaneous estimation of the thermal diffusivity and thermal contact resistance of thin solid films and coatings using the two-dimensional flash method. in International Journal of Thermophysics, 24(3), 799-819.
https://doi.org/10.1023/A:1024000602687
Milošević ND, Raynaud M, Maglic K. Simultaneous estimation of the thermal diffusivity and thermal contact resistance of thin solid films and coatings using the two-dimensional flash method. in International Journal of Thermophysics. 2003;24(3):799-819.
doi:10.1023/A:1024000602687 .
Milošević, Nenad D., Raynaud, M, Maglic, KD, "Simultaneous estimation of the thermal diffusivity and thermal contact resistance of thin solid films and coatings using the two-dimensional flash method" in International Journal of Thermophysics, 24, no. 3 (2003):799-819,
https://doi.org/10.1023/A:1024000602687 . .
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Thermal properties of Nichrome 5 - a contribution to the understanding of kinetics of structural transitions

Stanimirovic, AM; Pavicic, DZ; Dordevic, EM; Maglic, KD

(2003)

TY  - JOUR
AU  - Stanimirovic, AM
AU  - Pavicic, DZ
AU  - Dordevic, EM
AU  - Maglic, KD
PY  - 2003
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/6544
AB  - A study is presented of the structural transition in the Nichrome 5 alloy (80Ni-20Cr), more precisely of its dependence on the heating rate. The phenomenon was observed in the study reported at the 12th ECTP in Vienna, 1990 (Maglic et al, 1992 High Temp. -High Press. 24 165-173), when it was found that the transition may occur at a temperature approximately 150K higher than reported in the published literature. In contrast to the available literature data which were obtained by steady-state, or close to steady-state techniques, those measurements were carried out by a dynamic, millisecond-resolution pulse-heating technique, with heating rates ranging between 300 and 600 K s(-1). The new study reported here used also the pulse technique, and the heating rates ranged between 45 and 1800 K s(-1). The obtained dependence between applied heating rates and the shift in the transition temperature is not linear: the increase of the shift at higher heating rates becomes smaller. Results are presented and discussed.
T2  - High Temperatures: High Pressures
T1  - Thermal properties of Nichrome 5 - a contribution to the understanding of kinetics of structural transitions
VL  - 35-6
IS  - 4
SP  - 465
EP  - 470
DO  - 10.1068/htjr063
ER  - 
@article{
author = "Stanimirovic, AM and Pavicic, DZ and Dordevic, EM and Maglic, KD",
year = "2003",
abstract = "A study is presented of the structural transition in the Nichrome 5 alloy (80Ni-20Cr), more precisely of its dependence on the heating rate. The phenomenon was observed in the study reported at the 12th ECTP in Vienna, 1990 (Maglic et al, 1992 High Temp. -High Press. 24 165-173), when it was found that the transition may occur at a temperature approximately 150K higher than reported in the published literature. In contrast to the available literature data which were obtained by steady-state, or close to steady-state techniques, those measurements were carried out by a dynamic, millisecond-resolution pulse-heating technique, with heating rates ranging between 300 and 600 K s(-1). The new study reported here used also the pulse technique, and the heating rates ranged between 45 and 1800 K s(-1). The obtained dependence between applied heating rates and the shift in the transition temperature is not linear: the increase of the shift at higher heating rates becomes smaller. Results are presented and discussed.",
journal = "High Temperatures: High Pressures",
title = "Thermal properties of Nichrome 5 - a contribution to the understanding of kinetics of structural transitions",
volume = "35-6",
number = "4",
pages = "465-470",
doi = "10.1068/htjr063"
}
Stanimirovic, A., Pavicic, D., Dordevic, E.,& Maglic, K.. (2003). Thermal properties of Nichrome 5 - a contribution to the understanding of kinetics of structural transitions. in High Temperatures: High Pressures, 35-6(4), 465-470.
https://doi.org/10.1068/htjr063
Stanimirovic A, Pavicic D, Dordevic E, Maglic K. Thermal properties of Nichrome 5 - a contribution to the understanding of kinetics of structural transitions. in High Temperatures: High Pressures. 2003;35-6(4):465-470.
doi:10.1068/htjr063 .
Stanimirovic, AM, Pavicic, DZ, Dordevic, EM, Maglic, KD, "Thermal properties of Nichrome 5 - a contribution to the understanding of kinetics of structural transitions" in High Temperatures: High Pressures, 35-6, no. 4 (2003):465-470,
https://doi.org/10.1068/htjr063 . .
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2

Recommended specific heat capacity functions of Group VA elements

Maglic, KD

(2003)

TY  - JOUR
AU  - Maglic, KD
PY  - 2003
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/2619
AB  - The objective of this study was to investigate the possibility of representing specific heat capacities of the three metals comprising Group VA of the periodic table: vanadium, niobium and tantalum, with polynomials, from ambient temperature to close to their melting point temperatures. The analysis was based on available literature data including experimental studies of these metals at the Thermophysical Properties Laboratory of the Vinca Institute using millisecond resolution pulse calorimetry. This work has resulted in recommended functions obtained by analysis of existing experimental data. A critical analysis of methods used in obtaining these data, pointing to possible inherent sources of systematic errors that might influence their reliability, resulted in preferential weights of different data sets. Possible use of these three metals as candidates for specific heat capacity standard reference materials is also discussed.
T2  - International Journal of Thermophysics
T1  - Recommended specific heat capacity functions of Group VA elements
VL  - 24
IS  - 2
SP  - 489
EP  - 500
DO  - 10.1023/A:1022976122789
ER  - 
@article{
author = "Maglic, KD",
year = "2003",
abstract = "The objective of this study was to investigate the possibility of representing specific heat capacities of the three metals comprising Group VA of the periodic table: vanadium, niobium and tantalum, with polynomials, from ambient temperature to close to their melting point temperatures. The analysis was based on available literature data including experimental studies of these metals at the Thermophysical Properties Laboratory of the Vinca Institute using millisecond resolution pulse calorimetry. This work has resulted in recommended functions obtained by analysis of existing experimental data. A critical analysis of methods used in obtaining these data, pointing to possible inherent sources of systematic errors that might influence their reliability, resulted in preferential weights of different data sets. Possible use of these three metals as candidates for specific heat capacity standard reference materials is also discussed.",
journal = "International Journal of Thermophysics",
title = "Recommended specific heat capacity functions of Group VA elements",
volume = "24",
number = "2",
pages = "489-500",
doi = "10.1023/A:1022976122789"
}
Maglic, K.. (2003). Recommended specific heat capacity functions of Group VA elements. in International Journal of Thermophysics, 24(2), 489-500.
https://doi.org/10.1023/A:1022976122789
Maglic K. Recommended specific heat capacity functions of Group VA elements. in International Journal of Thermophysics. 2003;24(2):489-500.
doi:10.1023/A:1022976122789 .
Maglic, KD, "Recommended specific heat capacity functions of Group VA elements" in International Journal of Thermophysics, 24, no. 2 (2003):489-500,
https://doi.org/10.1023/A:1022976122789 . .
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Estimation of thermal contact resistance between the materials of double-layer sample using the laser flash method

Milošević, Nenad D.; Raynaud, M; Maglic, KD

(2002)

TY  - JOUR
AU  - Milošević, Nenad D.
AU  - Raynaud, M
AU  - Maglic, KD
PY  - 2002
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/2521
AB  - This paper proposes a technique for estimation of thermal contact resistance between two opaque solids. The laser flash method combined with an inverse approach based on the Gauss parameter estimation procedure is used. The analytical solution of the model of double-layer sample is given and the data reduction procedure is briefly described. Estimation possibilities of thermal contact resistance and other parameters of the model are analyzed. Particular attention is given to the influence of known parameter uncertainties. The estimation procedure is tested using simulated experimental data. New types of diagram are used to present and analyze the results. Results and discussion are given at the end of the paper.
T2  - Inverse Problems in Engineering
T1  - Estimation of thermal contact resistance between the materials of double-layer sample using the laser flash method
VL  - 10
IS  - 1
SP  - 85
EP  - 103
DO  - 10.1080/10682760290022528
ER  - 
@article{
author = "Milošević, Nenad D. and Raynaud, M and Maglic, KD",
year = "2002",
abstract = "This paper proposes a technique for estimation of thermal contact resistance between two opaque solids. The laser flash method combined with an inverse approach based on the Gauss parameter estimation procedure is used. The analytical solution of the model of double-layer sample is given and the data reduction procedure is briefly described. Estimation possibilities of thermal contact resistance and other parameters of the model are analyzed. Particular attention is given to the influence of known parameter uncertainties. The estimation procedure is tested using simulated experimental data. New types of diagram are used to present and analyze the results. Results and discussion are given at the end of the paper.",
journal = "Inverse Problems in Engineering",
title = "Estimation of thermal contact resistance between the materials of double-layer sample using the laser flash method",
volume = "10",
number = "1",
pages = "85-103",
doi = "10.1080/10682760290022528"
}
Milošević, N. D., Raynaud, M.,& Maglic, K.. (2002). Estimation of thermal contact resistance between the materials of double-layer sample using the laser flash method. in Inverse Problems in Engineering, 10(1), 85-103.
https://doi.org/10.1080/10682760290022528
Milošević ND, Raynaud M, Maglic K. Estimation of thermal contact resistance between the materials of double-layer sample using the laser flash method. in Inverse Problems in Engineering. 2002;10(1):85-103.
doi:10.1080/10682760290022528 .
Milošević, Nenad D., Raynaud, M, Maglic, KD, "Estimation of thermal contact resistance between the materials of double-layer sample using the laser flash method" in Inverse Problems in Engineering, 10, no. 1 (2002):85-103,
https://doi.org/10.1080/10682760290022528 . .
1
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33

Specific heat and electrical resistivity of 53%Niobium-47%Titanium alloy measured by subsecond calorimetric technique

Pavicic, DZ; Maglic, KD

(2002)

TY  - JOUR
AU  - Pavicic, DZ
AU  - Maglic, KD
PY  - 2002
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/6337
AB  - This paper presents results of measurements of the specific heat and electrical resistivity of a 53%Ni-47%Ti superconducting alloy. Both properties were measured by a contact variant of the millisecond-resolution pulse calorimeter. W5%Re/W25%Re thermocouple thermometry enabled study from ambient temperature to 2000 K. Results are discussed, and their uncertainty is estimated.
T2  - International Journal of Thermophysics
T1  - Specific heat and electrical resistivity of 53%Niobium-47%Titanium alloy measured by subsecond calorimetric technique
VL  - 23
IS  - 5
SP  - 1319
EP  - 1325
DO  - 10.1023/A:1019812925066
ER  - 
@article{
author = "Pavicic, DZ and Maglic, KD",
year = "2002",
abstract = "This paper presents results of measurements of the specific heat and electrical resistivity of a 53%Ni-47%Ti superconducting alloy. Both properties were measured by a contact variant of the millisecond-resolution pulse calorimeter. W5%Re/W25%Re thermocouple thermometry enabled study from ambient temperature to 2000 K. Results are discussed, and their uncertainty is estimated.",
journal = "International Journal of Thermophysics",
title = "Specific heat and electrical resistivity of 53%Niobium-47%Titanium alloy measured by subsecond calorimetric technique",
volume = "23",
number = "5",
pages = "1319-1325",
doi = "10.1023/A:1019812925066"
}
Pavicic, D.,& Maglic, K.. (2002). Specific heat and electrical resistivity of 53%Niobium-47%Titanium alloy measured by subsecond calorimetric technique. in International Journal of Thermophysics, 23(5), 1319-1325.
https://doi.org/10.1023/A:1019812925066
Pavicic D, Maglic K. Specific heat and electrical resistivity of 53%Niobium-47%Titanium alloy measured by subsecond calorimetric technique. in International Journal of Thermophysics. 2002;23(5):1319-1325.
doi:10.1023/A:1019812925066 .
Pavicic, DZ, Maglic, KD, "Specific heat and electrical resistivity of 53%Niobium-47%Titanium alloy measured by subsecond calorimetric technique" in International Journal of Thermophysics, 23, no. 5 (2002):1319-1325,
https://doi.org/10.1023/A:1019812925066 . .
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5

Thermal and electrical properties of titanium between 300 and 1900 K

Maglic, KD; Pavicic, DZ

(2001)

TY  - JOUR
AU  - Maglic, KD
AU  - Pavicic, DZ
PY  - 2001
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/2495
AB  - The specific heat capacity and electrical resistivity of titanium were measured by a subsecond pulse-heating method. Specimens were in the form of a 1.6-mm diameter-wire. Experiments covered the range between 300 and 1900 K; thermometry was provided by Pt10%Rh/Pt and W5%Re/W25%Re thermocouples. The maximum uncertainties in the specific heat capacity and electrical resistivity determinations were less than 3 and 1%, respectively. Results are reported and discussed for both the bcc and hcp structures and the transformation between the two phases.
T2  - International Journal of Thermophysics
T1  - Thermal and electrical properties of titanium between 300 and 1900 K
VL  - 22
IS  - 6
SP  - 1833
EP  - 1841
DO  - 10.1023/A:1013151303111
ER  - 
@article{
author = "Maglic, KD and Pavicic, DZ",
year = "2001",
abstract = "The specific heat capacity and electrical resistivity of titanium were measured by a subsecond pulse-heating method. Specimens were in the form of a 1.6-mm diameter-wire. Experiments covered the range between 300 and 1900 K; thermometry was provided by Pt10%Rh/Pt and W5%Re/W25%Re thermocouples. The maximum uncertainties in the specific heat capacity and electrical resistivity determinations were less than 3 and 1%, respectively. Results are reported and discussed for both the bcc and hcp structures and the transformation between the two phases.",
journal = "International Journal of Thermophysics",
title = "Thermal and electrical properties of titanium between 300 and 1900 K",
volume = "22",
number = "6",
pages = "1833-1841",
doi = "10.1023/A:1013151303111"
}
Maglic, K.,& Pavicic, D.. (2001). Thermal and electrical properties of titanium between 300 and 1900 K. in International Journal of Thermophysics, 22(6), 1833-1841.
https://doi.org/10.1023/A:1013151303111
Maglic K, Pavicic D. Thermal and electrical properties of titanium between 300 and 1900 K. in International Journal of Thermophysics. 2001;22(6):1833-1841.
doi:10.1023/A:1013151303111 .
Maglic, KD, Pavicic, DZ, "Thermal and electrical properties of titanium between 300 and 1900 K" in International Journal of Thermophysics, 22, no. 6 (2001):1833-1841,
https://doi.org/10.1023/A:1013151303111 . .
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23

Step-heating method of measuring thermal diffusivity using parameter estimation

Vukovic, GS; Maglic, KD

(2001)

TY  - JOUR
AU  - Vukovic, GS
AU  - Maglic, KD
PY  - 2001
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/2441
AB  - A variant of the monotonic heating method has been developed for measuring the thermal diffusivity of different types of solid materials, by step-heating with small temperature increments. In analysing the experimental data, the parameter estimation procedure is used. As the estimation of each parameter is influenced by its sensitivity coefficient, the result of simultaneous estimation of a number of parameters is presented and discussed. The method has been applied to various materials without a protective atmosphere. The maximum range was from room temperature to 1100 K. Results obtained in measuring the thermal diffusivity of aluminosilicate brick, polytetrafluoroethylene, expanded polystyrene, and carbon felt are presented. Sources of measurement uncertainty are analysed and its total amount is estimated.
T2  - High Temperatures: High Pressures
T1  - Step-heating method of measuring thermal diffusivity using parameter estimation
VL  - 33
IS  - 3
SP  - 347
EP  - 356
DO  - 10.1068/htjr020
ER  - 
@article{
author = "Vukovic, GS and Maglic, KD",
year = "2001",
abstract = "A variant of the monotonic heating method has been developed for measuring the thermal diffusivity of different types of solid materials, by step-heating with small temperature increments. In analysing the experimental data, the parameter estimation procedure is used. As the estimation of each parameter is influenced by its sensitivity coefficient, the result of simultaneous estimation of a number of parameters is presented and discussed. The method has been applied to various materials without a protective atmosphere. The maximum range was from room temperature to 1100 K. Results obtained in measuring the thermal diffusivity of aluminosilicate brick, polytetrafluoroethylene, expanded polystyrene, and carbon felt are presented. Sources of measurement uncertainty are analysed and its total amount is estimated.",
journal = "High Temperatures: High Pressures",
title = "Step-heating method of measuring thermal diffusivity using parameter estimation",
volume = "33",
number = "3",
pages = "347-356",
doi = "10.1068/htjr020"
}
Vukovic, G.,& Maglic, K.. (2001). Step-heating method of measuring thermal diffusivity using parameter estimation. in High Temperatures: High Pressures, 33(3), 347-356.
https://doi.org/10.1068/htjr020
Vukovic G, Maglic K. Step-heating method of measuring thermal diffusivity using parameter estimation. in High Temperatures: High Pressures. 2001;33(3):347-356.
doi:10.1068/htjr020 .
Vukovic, GS, Maglic, KD, "Step-heating method of measuring thermal diffusivity using parameter estimation" in High Temperatures: High Pressures, 33, no. 3 (2001):347-356,
https://doi.org/10.1068/htjr020 . .
1

Thermal diffusivity of the candidate standard reference material cordierite

Neuer, G; Brandt, R; Maglic, KD; Milošević, Nenad D.; Groboth, G; Rudtsch, S

(1999)

TY  - JOUR
AU  - Neuer, G
AU  - Brandt, R
AU  - Maglic, KD
AU  - Milošević, Nenad D.
AU  - Groboth, G
AU  - Rudtsch, S
PY  - 1999
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/2292
AB  - The results of an international programme carried out to qualify transfer or reference standards for thermal transport properties, thermal conductivity and thermal diffusivity, in the range between 1 W m(-1) K-1 and 5 W m(-1) K-1, are reported. It was necessary to cover the gap in the availability of reference standards among ceramic high-temperature materials appropriate for use above 800 degrees C. A well-suited candidate material has been found in commercial cordierite manufactured by Ceramtec AG, large batches of which are regularly produced for various articles and components under a standard procedure. The programme carried out under the auspices of the German task group Thermophysik involved thermal diffusivity measurements at the Institute for Nuclear Technology and Energy Systems (IKE) of the University of Stuttgart, Germany, the Institute of Nuclear Sciences Vinca (Vinca), Yugoslavia, the Austrian Research Centre Seibersdorf (FZS), Austria, and the Brandenburg Technical University (BTU) at Cottbus, Germany. Measurements of thermal diffusivity carried out by different experimental techniques and by varying various relevant parameters gave results which are in very good agreement. Experimental results are presented and discussed.
T2  - High Temperatures: High Pressures
T1  - Thermal diffusivity of the candidate standard reference material cordierite
VL  - 31
IS  - 5
SP  - 517
EP  - 524
DO  - 10.1068/htrt172
ER  - 
@article{
author = "Neuer, G and Brandt, R and Maglic, KD and Milošević, Nenad D. and Groboth, G and Rudtsch, S",
year = "1999",
abstract = "The results of an international programme carried out to qualify transfer or reference standards for thermal transport properties, thermal conductivity and thermal diffusivity, in the range between 1 W m(-1) K-1 and 5 W m(-1) K-1, are reported. It was necessary to cover the gap in the availability of reference standards among ceramic high-temperature materials appropriate for use above 800 degrees C. A well-suited candidate material has been found in commercial cordierite manufactured by Ceramtec AG, large batches of which are regularly produced for various articles and components under a standard procedure. The programme carried out under the auspices of the German task group Thermophysik involved thermal diffusivity measurements at the Institute for Nuclear Technology and Energy Systems (IKE) of the University of Stuttgart, Germany, the Institute of Nuclear Sciences Vinca (Vinca), Yugoslavia, the Austrian Research Centre Seibersdorf (FZS), Austria, and the Brandenburg Technical University (BTU) at Cottbus, Germany. Measurements of thermal diffusivity carried out by different experimental techniques and by varying various relevant parameters gave results which are in very good agreement. Experimental results are presented and discussed.",
journal = "High Temperatures: High Pressures",
title = "Thermal diffusivity of the candidate standard reference material cordierite",
volume = "31",
number = "5",
pages = "517-524",
doi = "10.1068/htrt172"
}
Neuer, G., Brandt, R., Maglic, K., Milošević, N. D., Groboth, G.,& Rudtsch, S.. (1999). Thermal diffusivity of the candidate standard reference material cordierite. in High Temperatures: High Pressures, 31(5), 517-524.
https://doi.org/10.1068/htrt172
Neuer G, Brandt R, Maglic K, Milošević ND, Groboth G, Rudtsch S. Thermal diffusivity of the candidate standard reference material cordierite. in High Temperatures: High Pressures. 1999;31(5):517-524.
doi:10.1068/htrt172 .
Neuer, G, Brandt, R, Maglic, KD, Milošević, Nenad D., Groboth, G, Rudtsch, S, "Thermal diffusivity of the candidate standard reference material cordierite" in High Temperatures: High Pressures, 31, no. 5 (1999):517-524,
https://doi.org/10.1068/htrt172 . .
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Thermal properties of tantalum between 300 and 2300 K

Milošević, Nenad D.; Vukovic, GS; Pavicic, DZ; Maglic, KD

(1999)

TY  - JOUR
AU  - Milošević, Nenad D.
AU  - Vukovic, GS
AU  - Pavicic, DZ
AU  - Maglic, KD
PY  - 1999
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/6286
AB  - A subsecond pulse heating method was applied to measure the specific heat capacity, electrical resistivity, total hemispherical emissivity, and normal spectral emissivity of 99.9% pure tantalum in the form of 2-mm-diameter wire. W/Re thermocouple thermometry was applied from 300 to 2300 K, with emissivity measurements above 1300 K involving pyrometric measurements. The maximum uncertainties in the specific heat capacity and electrical resistivity were less than 3 and 1% respectively. The uncertainty of emissivity measurements was estimated as +/- 5 %. The results are compared with literature values.
T2  - International Journal of Thermophysics
T1  - Thermal properties of tantalum between 300 and 2300 K
VL  - 20
IS  - 4
SP  - 1129
EP  - 1136
DO  - 10.1023/A:1022659005050
ER  - 
@article{
author = "Milošević, Nenad D. and Vukovic, GS and Pavicic, DZ and Maglic, KD",
year = "1999",
abstract = "A subsecond pulse heating method was applied to measure the specific heat capacity, electrical resistivity, total hemispherical emissivity, and normal spectral emissivity of 99.9% pure tantalum in the form of 2-mm-diameter wire. W/Re thermocouple thermometry was applied from 300 to 2300 K, with emissivity measurements above 1300 K involving pyrometric measurements. The maximum uncertainties in the specific heat capacity and electrical resistivity were less than 3 and 1% respectively. The uncertainty of emissivity measurements was estimated as +/- 5 %. The results are compared with literature values.",
journal = "International Journal of Thermophysics",
title = "Thermal properties of tantalum between 300 and 2300 K",
volume = "20",
number = "4",
pages = "1129-1136",
doi = "10.1023/A:1022659005050"
}
Milošević, N. D., Vukovic, G., Pavicic, D.,& Maglic, K.. (1999). Thermal properties of tantalum between 300 and 2300 K. in International Journal of Thermophysics, 20(4), 1129-1136.
https://doi.org/10.1023/A:1022659005050
Milošević ND, Vukovic G, Pavicic D, Maglic K. Thermal properties of tantalum between 300 and 2300 K. in International Journal of Thermophysics. 1999;20(4):1129-1136.
doi:10.1023/A:1022659005050 .
Milošević, Nenad D., Vukovic, GS, Pavicic, DZ, Maglic, KD, "Thermal properties of tantalum between 300 and 2300 K" in International Journal of Thermophysics, 20, no. 4 (1999):1129-1136,
https://doi.org/10.1023/A:1022659005050 . .
50
33
46

Measurement of thermal diffusivity of thin films by the AC calorimetric method

Stanimirovic, AM; Maglic, KD; Perovic, NL; Vukovic, GS

(1998)

TY  - JOUR
AU  - Stanimirovic, AM
AU  - Maglic, KD
AU  - Perovic, NL
AU  - Vukovic, GS
PY  - 1998
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/2215
AB  - Materials in the form of thin films are increasingly used in electronics and industry. In order to gain full control over fabricated thin-film ultimate properties, methods for their thermal characterisation are necessary. Development of a capability for their thermal characterisation is under way at the Institute of Nuclear Sciences Vinca: Modified Ac calorimetry is the chosen method for thin-film characterisation. The sample is irradiated with modulated light. The propagation of temperature waves along the specimen is characterised by the rate of amplitude decay and phase lag increase. The frequency of modulation is varied between 0.25 and 1 Hz. Samples of commercial tantalum, nickel, and tungsten foils have been investigated. A PC-based data acquisition system recorded simultaneously the signals from the thermocouple (temperature waves) and from the optical detector (incident light intensity). Data processing and reduction included filtering and fitting. A sinusoidal signal had to be fitted to noisy temperature and light intensity signals, to determine the most probable values of amplitude and phase of recorded signals. Thermal diffusivity was determined on the basis of amplitude decay and phase lag increase, and therefore heat loss has been compensated for. Initial values of room temperature data for tantalum, nickel, and tungsten have been obtained, and also pointers to improvements in apparatus and software as well as extension of the temperature range of measurements.
T2  - High Temperatures: High Pressures
T1  - Measurement of thermal diffusivity of thin films by the AC calorimetric method
VL  - 30
IS  - 3
SP  - 327
EP  - 332
DO  - 10.1068/htec228
ER  - 
@article{
author = "Stanimirovic, AM and Maglic, KD and Perovic, NL and Vukovic, GS",
year = "1998",
abstract = "Materials in the form of thin films are increasingly used in electronics and industry. In order to gain full control over fabricated thin-film ultimate properties, methods for their thermal characterisation are necessary. Development of a capability for their thermal characterisation is under way at the Institute of Nuclear Sciences Vinca: Modified Ac calorimetry is the chosen method for thin-film characterisation. The sample is irradiated with modulated light. The propagation of temperature waves along the specimen is characterised by the rate of amplitude decay and phase lag increase. The frequency of modulation is varied between 0.25 and 1 Hz. Samples of commercial tantalum, nickel, and tungsten foils have been investigated. A PC-based data acquisition system recorded simultaneously the signals from the thermocouple (temperature waves) and from the optical detector (incident light intensity). Data processing and reduction included filtering and fitting. A sinusoidal signal had to be fitted to noisy temperature and light intensity signals, to determine the most probable values of amplitude and phase of recorded signals. Thermal diffusivity was determined on the basis of amplitude decay and phase lag increase, and therefore heat loss has been compensated for. Initial values of room temperature data for tantalum, nickel, and tungsten have been obtained, and also pointers to improvements in apparatus and software as well as extension of the temperature range of measurements.",
journal = "High Temperatures: High Pressures",
title = "Measurement of thermal diffusivity of thin films by the AC calorimetric method",
volume = "30",
number = "3",
pages = "327-332",
doi = "10.1068/htec228"
}
Stanimirovic, A., Maglic, K., Perovic, N.,& Vukovic, G.. (1998). Measurement of thermal diffusivity of thin films by the AC calorimetric method. in High Temperatures: High Pressures, 30(3), 327-332.
https://doi.org/10.1068/htec228
Stanimirovic A, Maglic K, Perovic N, Vukovic G. Measurement of thermal diffusivity of thin films by the AC calorimetric method. in High Temperatures: High Pressures. 1998;30(3):327-332.
doi:10.1068/htec228 .
Stanimirovic, AM, Maglic, KD, Perovic, NL, Vukovic, GS, "Measurement of thermal diffusivity of thin films by the AC calorimetric method" in High Temperatures: High Pressures, 30, no. 3 (1998):327-332,
https://doi.org/10.1068/htec228 . .
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9

Thermophysical properties of tungsten electrodes by subsecond pulse calorimetry

Perovic, NL; Maglic, KD; Vukovic, GS

(1996)

TY  - JOUR
AU  - Perovic, NL
AU  - Maglic, KD
AU  - Vukovic, GS
PY  - 1996
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/7220
AB  - Prediction of the behavior of tungsten electrode material in high-temperature plasma generators requires knowledge of its thermophysical properties over a wide temperature range. For determination of its relevant thermophysical properties, the direct pulse heating calorimetry technique was chosen as the most appropriate, as it meets requirements of both high-speed measurements and the widest temperature range. As a high-temperature sensor, the method used simultaneously a fine-gauge thermocouple and an optical pyrometer. Such a combination enables coverage of a few thousand degrees within a second, with a time resolution of less than 1 ms. The measurement technique and details of the apparatus as well as experimental results for specific heat, electrical resistivity, normal spectral, and hemispherical total emittance in the temperature range From 300 to 2500 K are presented.
T2  - International Journal of Thermophysics
T1  - Thermophysical properties of tungsten electrodes by subsecond pulse calorimetry
VL  - 17
IS  - 5
SP  - 1047
EP  - 1055
DO  - 10.1007/BF01441993
ER  - 
@article{
author = "Perovic, NL and Maglic, KD and Vukovic, GS",
year = "1996",
abstract = "Prediction of the behavior of tungsten electrode material in high-temperature plasma generators requires knowledge of its thermophysical properties over a wide temperature range. For determination of its relevant thermophysical properties, the direct pulse heating calorimetry technique was chosen as the most appropriate, as it meets requirements of both high-speed measurements and the widest temperature range. As a high-temperature sensor, the method used simultaneously a fine-gauge thermocouple and an optical pyrometer. Such a combination enables coverage of a few thousand degrees within a second, with a time resolution of less than 1 ms. The measurement technique and details of the apparatus as well as experimental results for specific heat, electrical resistivity, normal spectral, and hemispherical total emittance in the temperature range From 300 to 2500 K are presented.",
journal = "International Journal of Thermophysics",
title = "Thermophysical properties of tungsten electrodes by subsecond pulse calorimetry",
volume = "17",
number = "5",
pages = "1047-1055",
doi = "10.1007/BF01441993"
}
Perovic, N., Maglic, K.,& Vukovic, G.. (1996). Thermophysical properties of tungsten electrodes by subsecond pulse calorimetry. in International Journal of Thermophysics, 17(5), 1047-1055.
https://doi.org/10.1007/BF01441993
Perovic N, Maglic K, Vukovic G. Thermophysical properties of tungsten electrodes by subsecond pulse calorimetry. in International Journal of Thermophysics. 1996;17(5):1047-1055.
doi:10.1007/BF01441993 .
Perovic, NL, Maglic, KD, Vukovic, GS, "Thermophysical properties of tungsten electrodes by subsecond pulse calorimetry" in International Journal of Thermophysics, 17, no. 5 (1996):1047-1055,
https://doi.org/10.1007/BF01441993 . .
9
9
10

Improvements in data reduction in direct pulse heating calorimetry

Vukovic, GS; Perovic, NL; Maglic, KD

(1996)

TY  - JOUR
AU  - Vukovic, GS
AU  - Perovic, NL
AU  - Maglic, KD
PY  - 1996
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/7221
AB  - This paper describes improvements introduced in data reduction in direct heating pulse specific heat experiments. In calculations of specific heal, it is necessary to calculate the first derivative of the recorded temperature data as a function of time. The error induced by different numerical differentiation techniques can represent a significant part of the overall measurement error. Thus, different digital filtering techniques, differentiation, and smoothing algorithms were applied and tested to examine their influence on the minimization of errors induced by noise, which is unavoidable in measured signals. A minimum square error criterion was applied in designing digital filters, with arbitrary prescribed magnitude characteristics. Attention was paid to applications when one or more structural phase transitions in the specimen material occur within the temperature range covered by the experiment. The cases where the frequency spectrum of induced noise overlaps with the spectrum of temperature transient signals originating from phase transitions were analyzed in detail. The effectiveness of the methods of extracting the final specific heat data from a noisy signal using different digital filtering techniques is demonstrated.
T2  - International Journal of Thermophysics
T1  - Improvements in data reduction in direct pulse heating calorimetry
VL  - 17
IS  - 5
SP  - 1057
EP  - 1067
DO  - 10.1007/BF01441994
ER  - 
@article{
author = "Vukovic, GS and Perovic, NL and Maglic, KD",
year = "1996",
abstract = "This paper describes improvements introduced in data reduction in direct heating pulse specific heat experiments. In calculations of specific heal, it is necessary to calculate the first derivative of the recorded temperature data as a function of time. The error induced by different numerical differentiation techniques can represent a significant part of the overall measurement error. Thus, different digital filtering techniques, differentiation, and smoothing algorithms were applied and tested to examine their influence on the minimization of errors induced by noise, which is unavoidable in measured signals. A minimum square error criterion was applied in designing digital filters, with arbitrary prescribed magnitude characteristics. Attention was paid to applications when one or more structural phase transitions in the specimen material occur within the temperature range covered by the experiment. The cases where the frequency spectrum of induced noise overlaps with the spectrum of temperature transient signals originating from phase transitions were analyzed in detail. The effectiveness of the methods of extracting the final specific heat data from a noisy signal using different digital filtering techniques is demonstrated.",
journal = "International Journal of Thermophysics",
title = "Improvements in data reduction in direct pulse heating calorimetry",
volume = "17",
number = "5",
pages = "1057-1067",
doi = "10.1007/BF01441994"
}
Vukovic, G., Perovic, N.,& Maglic, K.. (1996). Improvements in data reduction in direct pulse heating calorimetry. in International Journal of Thermophysics, 17(5), 1057-1067.
https://doi.org/10.1007/BF01441994
Vukovic G, Perovic N, Maglic K. Improvements in data reduction in direct pulse heating calorimetry. in International Journal of Thermophysics. 1996;17(5):1057-1067.
doi:10.1007/BF01441994 .
Vukovic, GS, Perovic, NL, Maglic, KD, "Improvements in data reduction in direct pulse heating calorimetry" in International Journal of Thermophysics, 17, no. 5 (1996):1057-1067,
https://doi.org/10.1007/BF01441994 . .
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