The thermal diffusivity of NiO pellets was determined by the photoacoustic technique. A NiO powder, with a purity of 99.95 %, was pressed into pellets 10 mm in diameter. The average agglomerate size of the NiO powder was 50 mu m and the size of individual particles was between 1 and 10 mu m. The pressing pressure was 1.5 GPa and the sintering temperature was 1100 degrees C. The sintering time was between 15 and 240 min. The photoacoustic phase and amplitude spectra of NiO were measured as a function of the modulating frequency, using a transmission detection configuration. Thermal diffusivity, D-T, the coefficient of minority carrier diffusion, their mobility and life time, and front and rear recombinating velocities were calculated as a function of sintering time by comparing the experimental results with theoretical photoacoustic phase and amplitude signals. The thermal diffusivity increases from 0.67 center dot 10(-5) to 0.97 center dot 10(-5)m(2)/s when the sintering time was chang...ed from 15 to 240 minutes.
TY - JOUR
AU - Nikolić, Pantelija M.
AU - Nikolić, Maria Vesna
AU - Luković Golić, Danijela
AU - Savić, Slavica M.
AU - Ristic, M. M.
PY - 2004
UR - http://rimsi.imsi.bg.ac.rs/handle/123456789/1466
AB - The thermal diffusivity of NiO pellets was determined by the photoacoustic technique. A NiO powder, with a purity of 99.95 %, was pressed into pellets 10 mm in diameter. The average agglomerate size of the NiO powder was 50 mu m and the size of individual particles was between 1 and 10 mu m. The pressing pressure was 1.5 GPa and the sintering temperature was 1100 degrees C. The sintering time was between 15 and 240 min. The photoacoustic phase and amplitude spectra of NiO were measured as a function of the modulating frequency, using a transmission detection configuration. Thermal diffusivity, D-T, the coefficient of minority carrier diffusion, their mobility and life time, and front and rear recombinating velocities were calculated as a function of sintering time by comparing the experimental results with theoretical photoacoustic phase and amplitude signals. The thermal diffusivity increases from 0.67 center dot 10(-5) to 0.97 center dot 10(-5)m(2)/s when the sintering time was changed from 15 to 240 minutes.
PB - Walter De Gruyter Gmbh, Berlin
T2 - International Journal of Materials Research
T1 - Photoacoustic properties of sintered NiO
EP - 150
IS - 3
SP - 147
VL - 95
DO - 10.3139/ijmr-2004-0032
ER -
@article{
author = "Nikolić, Pantelija M. and Nikolić, Maria Vesna and Luković Golić, Danijela and Savić, Slavica M. and Ristic, M. M.",
year = "2004",
abstract = "The thermal diffusivity of NiO pellets was determined by the photoacoustic technique. A NiO powder, with a purity of 99.95 %, was pressed into pellets 10 mm in diameter. The average agglomerate size of the NiO powder was 50 mu m and the size of individual particles was between 1 and 10 mu m. The pressing pressure was 1.5 GPa and the sintering temperature was 1100 degrees C. The sintering time was between 15 and 240 min. The photoacoustic phase and amplitude spectra of NiO were measured as a function of the modulating frequency, using a transmission detection configuration. Thermal diffusivity, D-T, the coefficient of minority carrier diffusion, their mobility and life time, and front and rear recombinating velocities were calculated as a function of sintering time by comparing the experimental results with theoretical photoacoustic phase and amplitude signals. The thermal diffusivity increases from 0.67 center dot 10(-5) to 0.97 center dot 10(-5)m(2)/s when the sintering time was changed from 15 to 240 minutes.",
publisher = "Walter De Gruyter Gmbh, Berlin",
journal = "International Journal of Materials Research",
title = "Photoacoustic properties of sintered NiO",
pages = "150-147",
number = "3",
volume = "95",
doi = "10.3139/ijmr-2004-0032"
}
Nikolić, P. M., Nikolić, M. V., Luković Golić, D., Savić, S. M.,& Ristic, M. M.. (2004). Photoacoustic properties of sintered NiO. in International Journal of Materials Research
Walter De Gruyter Gmbh, Berlin., 95(3), 147-150.
https://doi.org/10.3139/ijmr-2004-0032
Nikolić PM, Nikolić MV, Luković Golić D, Savić SM, Ristic MM. Photoacoustic properties of sintered NiO. in International Journal of Materials Research. 2004;95(3):147-150.
doi:10.3139/ijmr-2004-0032 .
Nikolić, Pantelija M., Nikolić, Maria Vesna, Luković Golić, Danijela, Savić, Slavica M., Ristic, M. M., "Photoacoustic properties of sintered NiO" in International Journal of Materials Research, 95, no. 3 (2004):147-150,
https://doi.org/10.3139/ijmr-2004-0032 . .
