In this work the DC resistivity of sintered nickel manganite NiMn2O4 (NTC thermistor material) was studied as a function of additional powder activation time in a planetary ball mill (0, 5, 15, 30, 45 and 60 min). The activated powders and non-activated powder were sintered at different temperatures (900, 1050 and 1200 degrees C) for an hour. Structural changes were analyzed using XRD. Sample density, porosity and DC resistivity were measured on the same sintered samples. Correlations between sample density, porosity, and intrinsic DC resistivity vs. additional powder activation time and the sintering temperature were made. It was noticed that the resistivity falls with the increase of sample density (or increase of the sintering temperature).
TY - JOUR
AU - Savić, Slavica M.
AU - Nikolić, Maria Vesna
AU - Aleksić, Obrad
AU - Slankamenac, Milos P
AU - Živanov, M.
AU - Nikolić, Pantelija M.
PY - 2008
UR - http://rimsi.imsi.bg.ac.rs/handle/123456789/260
AB - In this work the DC resistivity of sintered nickel manganite NiMn2O4 (NTC thermistor material) was studied as a function of additional powder activation time in a planetary ball mill (0, 5, 15, 30, 45 and 60 min). The activated powders and non-activated powder were sintered at different temperatures (900, 1050 and 1200 degrees C) for an hour. Structural changes were analyzed using XRD. Sample density, porosity and DC resistivity were measured on the same sintered samples. Correlations between sample density, porosity, and intrinsic DC resistivity vs. additional powder activation time and the sintering temperature were made. It was noticed that the resistivity falls with the increase of sample density (or increase of the sintering temperature).
PB - Međunarodni Institut za nauku o sinterovanju, Beograd
T2 - Science of Sintering
T1 - Intrinsic resistivity of sintered nickel manganite vs. powder activation time and density
EP - 32
IS - 1
SP - 27
VL - 40
DO - 10.2298/SOS0801027S
ER -
@article{
author = "Savić, Slavica M. and Nikolić, Maria Vesna and Aleksić, Obrad and Slankamenac, Milos P and Živanov, M. and Nikolić, Pantelija M.",
year = "2008",
abstract = "In this work the DC resistivity of sintered nickel manganite NiMn2O4 (NTC thermistor material) was studied as a function of additional powder activation time in a planetary ball mill (0, 5, 15, 30, 45 and 60 min). The activated powders and non-activated powder were sintered at different temperatures (900, 1050 and 1200 degrees C) for an hour. Structural changes were analyzed using XRD. Sample density, porosity and DC resistivity were measured on the same sintered samples. Correlations between sample density, porosity, and intrinsic DC resistivity vs. additional powder activation time and the sintering temperature were made. It was noticed that the resistivity falls with the increase of sample density (or increase of the sintering temperature).",
publisher = "Međunarodni Institut za nauku o sinterovanju, Beograd",
journal = "Science of Sintering",
title = "Intrinsic resistivity of sintered nickel manganite vs. powder activation time and density",
pages = "32-27",
number = "1",
volume = "40",
doi = "10.2298/SOS0801027S"
}
Savić, S. M., Nikolić, M. V., Aleksić, O., Slankamenac, M. P., Živanov, M.,& Nikolić, P. M.. (2008). Intrinsic resistivity of sintered nickel manganite vs. powder activation time and density. in Science of Sintering
Međunarodni Institut za nauku o sinterovanju, Beograd., 40(1), 27-32.
https://doi.org/10.2298/SOS0801027S
Savić SM, Nikolić MV, Aleksić O, Slankamenac MP, Živanov M, Nikolić PM. Intrinsic resistivity of sintered nickel manganite vs. powder activation time and density. in Science of Sintering. 2008;40(1):27-32.
doi:10.2298/SOS0801027S .
Savić, Slavica M., Nikolić, Maria Vesna, Aleksić, Obrad, Slankamenac, Milos P, Živanov, M., Nikolić, Pantelija M., "Intrinsic resistivity of sintered nickel manganite vs. powder activation time and density" in Science of Sintering, 40, no. 1 (2008):27-32,
https://doi.org/10.2298/SOS0801027S . .
