A位施主掺杂剂对PTC陶瓷性能的影响  

The Influences of Donor Dopants at A Site on the Properties of the PTC Ceramic

作　　者：霍伟荣[1] 李平[1] 于天来 曲远方[3] 

机构地区：[1]电子科技大学电子薄膜与集成器件国家重点实验室,四川成都610054 [2]成都光明光电股份有限公司,四川成都610051 [3]天津大学先进陶瓷与加工技术教育部重点实验室,天津300072

出　　处：《压电与声光》2009年第3期401-403,407,共4页Piezoelectrics & Acoustooptics

摘　　要：通过阻温测试、SEM及XRD等测试分析手段,研究了不同A位施主掺杂剂对材料性能的影响,结果表明:与Sb2O3和Y2O3相比,以Bi2O3为A位施主掺杂剂时,试样的温度系数最大,高达46.42×10-2/℃。当升温速度为200℃/h时,试样的PTC效应得到了明显的改善。The influences of different donor dopants at A site on the properties of PTC ceramics were investigated by R-T measurement,SEM and XRD. Compared with Sb2O3 and Y2O3, Bi2O3 as A site donor made the materials have the maximum temperature coefficient 46.42×10^-2/℃. When the beating rate was 200 ℃/h which was slow, the PTC effects were improved obviously.

关 键 词：A位施主剂 BATIO3基 PTC效应 烧结工艺 

分 类 号：TQ174[化学工程—陶瓷工业]