摘要
研究了Bi2O3掺杂对Nb2O5-TiO2电容压敏双功能陶瓷材料的烧结温度,相对介电常数,非线性,压敏电压的影响。实验发现,烧结温度为1200℃,Bi2O3掺杂量为0.2%时,非线性系数α高达6.6148;Bi2O3掺杂量为1.0%时,相对介电常数εr高达1.3733×104。烧结温度在1450℃时,压敏电压最低,Eb=1.979 V.mm-1。
The effect of the addition of Bi2O3 on the different sintering temperature, dielectric permittivity, nonlinear electrical characteristics and varistor voltage of Nb2 05 -TiO2 Capacitor-Varistor double functional Ceramics system was investigated. It was found that the sample with x = 0.2 Bi2O3 exhibits the highest nonlinear coefficient （ α = 6. 6148） and the sample with x = 1.0 Bi2O3 exhibits the highest electrical permittivity of 1.3733 × 10^4 when the sintering temperature is 1200℃ . Furthermore, it was found that the sample with x = 0.2 Bi2O3 exhibits the lowest varistor voltage （Eb = 1. 979 V·mm^-1 ） when the sintering temperature is 1450℃.
出处
《材料科学与工程学报》
CAS
CSCD
北大核心
2006年第6期877-879,共3页
Journal of Materials Science and Engineering
