铌酸锶钡/钛酸锶钡复相陶瓷形成过程研究  

Formation Behaviors of Barium Strontium Titanate/strontium Barium Niobate Composite Ceramics

作　　者：单连伟[1] 马成国[1] 胥焕岩[1] 董丽敏[1] 吴泽[1] 韩志东[1] 张显友[1] 

机构地区：[1]哈尔滨理工大学材料科学与工程学院,哈尔滨150040

出　　处：《信息记录材料》2011年第3期32-36,共5页Information Recording Materials

基　　金：黑龙江省自然科学基金(F200927);哈尔滨市科技创新人才专项基金资助(2008RFQXG070)

摘　　要：应用粉末-溶胶工艺合成出铌酸锶钡/钛酸锶钡复相陶瓷(SBN/SBT)。采用X射线衍射技术研究了不同预烧温度的原始粉料、不同烧结温度和不同保温时间得到的铌酸锶钡/钛酸锶钡复相陶瓷。研究表明:钨青铜相和钙钛矿相共存于体系之中。复相陶瓷形成过程中形成了TiO2、BaNb2O6(BN)、SrNb2O6(SN)等中间相,增加烧结温度至1250℃,形成了铌酸锶钡/钛酸锶钡复相陶瓷。Barium strontium titanate/ strontium barium niobate （SBN/SBT） composite ceramics system following the general formula 0. 5BaO · 0.5SrO· 0. 5TiO2 · 0. 5Nb2O6 were successfully prepared through improved powder-sol method. The starting materials mixture, SBN/ SBT composite ceramics with different sintering temperature and sintering time were studied by X-ray diffraction （XRD）. It was found that intermediate phases, i. e. , TiO2,BaNb2O6 （BN）, SrNb2O6（SN） were developed during the developing course of SBN/SBT composite ceramics. The titled composite ceramics were formed as sintering temperature elevating to 1250℃.

关 键 词：粉末-溶胶法 复相陶瓷 钙钛矿相 钨青铜相 

分 类 号：TQ174[化学工程—陶瓷工业]