掺杂ZnO-Ba_(0.8)Sr_(0.2)TiO_3复合陶瓷的制备与热敏特性  

PREPARATION AND THERMISTOR CHARACTERISTICS OF DOPED ZnO-Ba_(0.8)Sr_(0.2)TiO_3 COMPOSITE CERAMICS

作　　者：马凤凯[1] 黄焱球[1] 于东云[1] 赵旭荣[1] 张蓓[1] 

机构地区：[1]中国地质大学(武汉)材料科学与化学工程学院,武汉430074

出　　处：《中国陶瓷》2010年第5期29-32,共4页China Ceramics

摘　　要：采用球磨法制备了ZnO-BST复合陶瓷,采用X射线衍射仪、扫描电子显微镜测定了样品的晶相、微观形貌,研究了Sb2O3、MnO、Cr2O3等氧化物掺杂对复合陶瓷热敏性能的影响。结果表明,随着Sb2O3、MnO、Cr2O3等氧化物的依次掺入,材料的热敏性能得到了较大的提高。ZnO-Ba0.8Sr0.2TiO3 composite ceramics were prepared by milling method doping with Sb2O3,MnO and Cr2O3,ordinally.The crystal and the microstructure of the ceramics were studied by X-ray diffraction and the scanning electron microscope.And the effects of dopants on thermistor characteristics of composite ceramics were investigated.The results showed that thermistor characteristics of composite ceramics was greatly improved by doping.

关 键 词：掺杂 ZnO-BST 热敏性能 复合陶瓷 

分 类 号：TQ174.758.22[化学工程—陶瓷工业]