文献类型：期刊文献

中文题名：溶胶—凝胶法制备PCT铁电陶瓷

英文题名：Ferroelectric Ceramics of (Pa,Ca)Tio_3 Prepared by Sol-Gel Process

作者：沈浩[1];程继健[1]

机构：[1]华东理工大学

年份：1995

卷号：13

期号：4

起止页码：25

中文期刊名：材料科学与工程

外文期刊名：Materials Science and Engineering

收录：CSCD:【CSCD2011_2012】；

语种：中文

中文关键词：凝胶法;铁电陶瓷;烧结;溶胶法;PCT晶相

外文关键词：Sol-Gelprocess; ferroelectric ceramic; sintering

摘要：本文报导了通过溶胶—凝胶法制备Ｐｂ_（１－ｘ）ＣａｘＴｉＯ_３（ｘ＝０．１～０．３）铁电陶瓷原料粉末，所得粉末具有较高的活性、纯度和均匀度。研究了不同掺ＣａＯ量对晶体结构和烧结温度的影响。在ＰＣＴ晶相生成前未发现有烧绿石或其它过渡晶相的出现。使用该粉末通过１０００～１２００℃的烧结过程，所得ＰＣＴ陶瓷可达理论密度的８８～９４％。
Ferroelectric Ceramic Powders of Pb_(1-x)CaxTiO_3 ( x=0.1￣0.3)with high reactivity, purity and homogeneity was prepared through Sol-gel process. Tae effect of different CaO Content on the crystal structure and sintering temperature has been studied. The pyrochlore-type and other intermediate crystal phases were not observed before the formation of PCT crystal phase. PCT ferroelectric ceramics can be sintered at 1000￣1200℃ with this powder. The obtained PCT ceramics could reach 88￣94% theoretical density.