TY - JOUR
T1 - Electrical properties of laser-synthesized aluminum oxide-tungsten oxide ceramics
AU - Zheng, Fang
AU - Yuan, Renzhang
AU - Li, Xingjiao
AU - Li, Zaiguang
AU - Tao, Xingzhi
AU - Zheng, Qiguang
AU - Zhan, Chang Guo
N1 - Copyright:
Copyright 2020 Elsevier B.V., All rights reserved.
PY - 1998/9
Y1 - 1998/9
N2 - Electronic ceramics of the Al2O3-WO3 system were synthesized by using a high-powered CO2 laser. It was shown that these ceramics can be used as linear thermistor materials. The linear temperature range of the Al2O3-WO3 system was ∼200°C, the nonlinear deviation e was <2%, the thermistor constant B was <103, and the temperature coefficient was between -0.2%/°C and -0.8%/°C. These parameters could be adjusted by changing the composition of the samples and the laser-synthesis parameters. The present study showed that the materials should be encapsulated if they are to be used in an oxidizing atmosphere. The current-voltage curves of the present materials were symmetrical around the coordinate origin, which also is a necessary condition for judging whether or not a thermistor is linear.
AB - Electronic ceramics of the Al2O3-WO3 system were synthesized by using a high-powered CO2 laser. It was shown that these ceramics can be used as linear thermistor materials. The linear temperature range of the Al2O3-WO3 system was ∼200°C, the nonlinear deviation e was <2%, the thermistor constant B was <103, and the temperature coefficient was between -0.2%/°C and -0.8%/°C. These parameters could be adjusted by changing the composition of the samples and the laser-synthesis parameters. The present study showed that the materials should be encapsulated if they are to be used in an oxidizing atmosphere. The current-voltage curves of the present materials were symmetrical around the coordinate origin, which also is a necessary condition for judging whether or not a thermistor is linear.
UR - http://www.scopus.com/inward/record.url?scp=0032165023&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0032165023&partnerID=8YFLogxK
U2 - 10.1111/j.1151-2916.1998.tb02640.x
DO - 10.1111/j.1151-2916.1998.tb02640.x
M3 - Article
AN - SCOPUS:0032165023
VL - 81
SP - 2443
EP - 2448
IS - 9
ER -