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V2O5对BaTiO3陶瓷PTC效应的影响

Weibing Ma,Yanxia Hao,Yuanfang Qu,Jie Bai

Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering（2005）

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Abstract
以BaTiO3为基,以Y2O3作为主要施主掺杂物,研究了钒取代钇和钒取代锰时对材料的PTC效应的作用.测试了试样的阻温特性,观察了试样的显微结构.结果表明:V2O5为弱施主掺杂物,有促进半导化的作用;适量添加V2O5可以降低室温电阻率和提高温度系数.
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Key words
BaTiO3,PTCR,V2O5
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