SiC复合(Ba,Pb)TiO_3系PTC热敏陶瓷的研究  

Study on (Ba,Pb)TiO_3-Based PTC Thermal Sensitive Ceramicswith SiC Compounded

作　　者：徐海萍[1] 

机构地区：[1]太原理工大学理学院应用物理系,山西太原030024

出　　处：《沈阳化工学院学报》2003年第1期33-36,共4页Journal of Shenyang Institute of Chemical Technolgy

基　　金：山西省自然科学基金(20021053);原煤炭部基金(电10611)

摘　　要：　以(Ba,Pb)TiO3为主要原料,适当引入半导化施主元素,用SiC进行复合制备样品.研究烧成条件对产物的影响,讨论每种掺杂剂对材料的PTC热敏特性及微观形貌的影响,确定每种掺杂剂的最佳掺量,并对其半导机理进行分析.Samples are prepared by (Ba,Pb)TiO3 as main raw material with some semiconductorized dopants, then are compounded with SiC. The effects of sintering temperature and these dopants on the heat-sensitive property and microstructure of the samples are studied. The suitable amount of these dopants are determined. The semiconductor mechanism is explained.

关 键 词：PTC热敏陶瓷 研究 碳化硅 钛酸钡铅 热敏特性 半导机理 

分 类 号：TQ174.756[化学工程—陶瓷工业]