Thermal diffusivity and electron transport parameters of sintered NTC samples were determined by the photoacoustic (PA) technique. Powder mixtures composed of MnO, NiO, CoO and Fe2O3 were milled to nanometer particle size. NTC discs were dry powder pressed and sintered at different temperatures in the range from 900 degrees C to 1300 degrees C for 30 min. A second group of NTC discs was sintered at 1200 degrees C with the sintering time varying from 30 min to 360 min. These NTC samples were polished and exposed to a chopped laser beam in order to plot a response in the acoustic range. The thermal diffusivity of sintered NTC layers based on a metal oxide powder mixture was measured at room temperature by the photoacoustic technique. An increase of thermal diffusivity with the sintering temperature and time of sintering was observed.
Keywords:
thermal diffusion / electron microscopy / ceramics
Source:
Materials Science and Engineering B-Solid State Materials for Advanced Technology, 2006, 131, 1-3, 216-221
TY - JOUR
AU - Savić, Slavica M.
AU - Aleksić, Obrad
AU - Nikolić, Maria Vesna
AU - Luković Golić, Danijela
AU - Pejović, V. Z.
AU - Nikolić, Pantelija M.
PY - 2006
UR - http://rimsi.imsi.bg.ac.rs/handle/123456789/165
AB - Thermal diffusivity and electron transport parameters of sintered NTC samples were determined by the photoacoustic (PA) technique. Powder mixtures composed of MnO, NiO, CoO and Fe2O3 were milled to nanometer particle size. NTC discs were dry powder pressed and sintered at different temperatures in the range from 900 degrees C to 1300 degrees C for 30 min. A second group of NTC discs was sintered at 1200 degrees C with the sintering time varying from 30 min to 360 min. These NTC samples were polished and exposed to a chopped laser beam in order to plot a response in the acoustic range. The thermal diffusivity of sintered NTC layers based on a metal oxide powder mixture was measured at room temperature by the photoacoustic technique. An increase of thermal diffusivity with the sintering temperature and time of sintering was observed.
PB - Elsevier Science Sa, Lausanne
T2 - Materials Science and Engineering B-Solid State Materials for Advanced Technology
T1 - Thermal diffusivity and electron transport properties of NTC samples obtained by the photoacoustic method
EP - 221
IS - 1-3
SP - 216
VL - 131
DO - 10.1016/j.mseb.2006.04.035
ER -
@article{
author = "Savić, Slavica M. and Aleksić, Obrad and Nikolić, Maria Vesna and Luković Golić, Danijela and Pejović, V. Z. and Nikolić, Pantelija M.",
year = "2006",
abstract = "Thermal diffusivity and electron transport parameters of sintered NTC samples were determined by the photoacoustic (PA) technique. Powder mixtures composed of MnO, NiO, CoO and Fe2O3 were milled to nanometer particle size. NTC discs were dry powder pressed and sintered at different temperatures in the range from 900 degrees C to 1300 degrees C for 30 min. A second group of NTC discs was sintered at 1200 degrees C with the sintering time varying from 30 min to 360 min. These NTC samples were polished and exposed to a chopped laser beam in order to plot a response in the acoustic range. The thermal diffusivity of sintered NTC layers based on a metal oxide powder mixture was measured at room temperature by the photoacoustic technique. An increase of thermal diffusivity with the sintering temperature and time of sintering was observed.",
publisher = "Elsevier Science Sa, Lausanne",
journal = "Materials Science and Engineering B-Solid State Materials for Advanced Technology",
title = "Thermal diffusivity and electron transport properties of NTC samples obtained by the photoacoustic method",
pages = "221-216",
number = "1-3",
volume = "131",
doi = "10.1016/j.mseb.2006.04.035"
}
Savić, S. M., Aleksić, O., Nikolić, M. V., Luković Golić, D., Pejović, V. Z.,& Nikolić, P. M.. (2006). Thermal diffusivity and electron transport properties of NTC samples obtained by the photoacoustic method. in Materials Science and Engineering B-Solid State Materials for Advanced Technology
Elsevier Science Sa, Lausanne., 131(1-3), 216-221.
https://doi.org/10.1016/j.mseb.2006.04.035
Savić SM, Aleksić O, Nikolić MV, Luković Golić D, Pejović VZ, Nikolić PM. Thermal diffusivity and electron transport properties of NTC samples obtained by the photoacoustic method. in Materials Science and Engineering B-Solid State Materials for Advanced Technology. 2006;131(1-3):216-221.
doi:10.1016/j.mseb.2006.04.035 .
Savić, Slavica M., Aleksić, Obrad, Nikolić, Maria Vesna, Luković Golić, Danijela, Pejović, V. Z., Nikolić, Pantelija M., "Thermal diffusivity and electron transport properties of NTC samples obtained by the photoacoustic method" in Materials Science and Engineering B-Solid State Materials for Advanced Technology, 131, no. 1-3 (2006):216-221,
https://doi.org/10.1016/j.mseb.2006.04.035 . .
