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低温烧结锶系PTC材料的研制
引用本文:陈建利,邓昭平,杨敬义,刘青,张斌.低温烧结锶系PTC材料的研制[J].电子元件与材料,2008,27(8).
作者姓名:陈建利  邓昭平  杨敬义  刘青  张斌
作者单位:1. 成都理工大学,材料与化学化工学院,四川,成都,610059
2. 成都顺康电子有限责任公司,四川,成都,611731
摘    要:为了降低(Ba,Sr)TiO3的烧结温度,以PbO、BN为矿化剂,采用固相反应法制备了样品。研究了ζ(PbO:BN)在低温烧结状态下对锶系PTC材料性能的影响。结果表明:当ζ(PbO:BN)为4:3时,样品在1182℃能半导化,且获得了特性较好的PTC材料:tC为64.9℃,R25为125Ω,ρmax/ρmin为2.553×105,温度系数α10/25为12.54%℃–1,耐电压Vb为696.7V。

关 键 词:电子技术  (Ba  Sr)TiO3  低温烧结  添加PbO和BN  PTC材料

Development of Sr-system PTC materials of low-temperature sintering
CHEN Jian-li,DENG Zhao-ping,YANG Jing-yi,LIU Qing,ZHANG Bing.Development of Sr-system PTC materials of low-temperature sintering[J].Electronic Components & Materials,2008,27(8).
Authors:CHEN Jian-li  DENG Zhao-ping  YANG Jing-yi  LIU Qing  ZHANG Bing
Affiliation:CHEN Jian-li,DENG Zhao-ping,YANG Jing-yi,LIU Qing,ZHANG Bing (1. Collage of Materials , Chemistry & Chemical Engineering,Chengdu University of Technology,Chengdu 610059,China,2. Chengdu Shunkang Electronics Co.,Ltd,Chengdu 611731,China)
Abstract:In order to decrease sintering temperature of (Ba,Sr)TiO3, different amounts of PbO and BN (as mineralizing agent) were added into (Ba,Sr)TiO3. The samples were prepared by solid phase reaction method. The effect of ζ(PbO:BN) on the performance of Sr-system PTC materials was researched. The results indicate the samples have semiconductivity at 1 182 ℃ when ζ(PbO:BN) is 4:3. The materials with better PTC properties of tC = 64.9 ℃, R25 = 125 Ω, ρmax / ρmin = 2.553×105, α10/25 = 12.54% ℃–1 and Vb = 696.7 V are obtained.
Keywords:electron technology  (Ba  Sr)TiO3  low-temperature sintering  adding of PbO and BN  PTC materials  
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