BBSM烧结助剂对低温烧结PTCR陶瓷性能的影响  

Influence of BBSM sintering aid on the properties for PTC thermistor ceramics sintered at low temperature

作　　者：孔明日[1,2] 姜胜林[1] 涂文芳[1] 黄兆祥[1] 

机构地区：[1]华中科技大学电子科学与技术系,湖北武汉430074 [2]金策工业综合大学半导体研究所,平壤999093

出　　处：《电子元件与材料》2009年第11期23-25,共3页Electronic Components And Materials

基　　金：国家"863"计划资助项目(No.SQ2008AA03Z4471960)

摘　　要：为了提高低温烧结BaTiO3基热敏陶瓷的PTC效应,提出在BaO-B2O3-SiO2烧结助剂中加入MnO(以Mn(NO3)2形式加入)的方法,研究了BaO-B2O3-SiO2-MnO(BBSM)烧结助剂对Y3+掺杂BaTiO3基热敏陶瓷的低温烧结和PTC特性的影响。结果表明:含有x[Mn(NO3)2]为0.06%的BBSM烧结助剂的样品,在1050℃保温3h下烧结后,其室温电阻率为306Ω·cm,升阻比为4.23×103。In order to enhance the PTC effect of BaTiO3 based thermistor ceramics sintered at low temperature, adding MnO （as Mn（NO3）2） in BaO-B2O3-SiO2 sintering aid was proposed. And the effects of BaO-B2O3-SiO2-MnO （BBSM） sintering aids on the low temperature sinter and PTC properties of BaTiO3 based thermistor ceramics doped with Y^3＋ were investigated. The results indicate that the samples with x[Mn（NO3）2] = 0.06% in the BBSM sintering aids can provide the room-temperature resistivity of 306 Ω·cm and jump range of 4.23×10^3. The sample is sintered at 1 050 ℃ for 3 h.

关 键 词：Y3+掺杂BaTiO3 BaO-B2O3-SiO2-MnO 低温烧结 PTC效应 

分 类 号：TM283[一般工业技术—材料科学与工程]