摘要
研究添加液相添加剂ＡＳＴ（质量分数ｗ为０．４％～１．０％或摩尔分数ｘ为１．６％～４．０％）的ＰＴＣＲ（Ｂａ０．９１Ｓｒ０．０６Ｃａ０．０３）Ｔｉ１．０１Ｏ３陶瓷材料。测量了烧结条件为１３２０～１３８０℃／０．５ｈ陶瓷材料试样的室温电阻、Ｒ－Ｔ曲线、Ｉ－Ｖ曲线、电阻温度系数α及开关温度Ｔｂ。在实验结果基础上，讨论了ＡＳＴ添加量对ＰＴＣＲ陶瓷主要电特性的影响。得出：ＡＳＴ添加量增加。
PTCR(Ba 0 91 ,Sr 0 06 ,Ca 0 03 )Ti 1 01 O 3 ceramics with liquid phase additives AST(from 0 4 to 1 0 wt%) are researched. Resistance at room temperature, R T dependence, I V dependence, temperature coefficient of resistance α and swiching temperature T b of samples made from the ceramics sintered from 1320 to 1380 ℃ for 0 5 h are measured.Effect of AST additive content in the ceramics on their main electric properties is discussed based on the experiment results. It is indicated that PTCR effect is weakened with increasing AST additive content.
出处
《电子元件与材料》
CAS
CSCD
1997年第2期24-27,共4页
Electronic Components And Materials
关键词
正电阻温度系数
钛酸钡陶瓷
液相添加剂
positive temperature coefficient of resistance, barium titanate ceramics, liqui phase d additive, liquid phase sintering
