组分偏离对PMN-PT弛豫复合钙钛矿相合成的影响  

Effect of Excess PbO and MgO on the Fabrication of PMN-PT Relaxor Perovskite Structure Phase

作　　者：钟海胜[1] 李强[2] 赵世玺[2] 宋锋兵[2] 李春红[2] 

机构地区：[1]武汉理工大学材料复合国家重点实验室,武汉430070 [2]清华大学化学系,北京100084

出　　处：《材料工程》2003年第4期10-11,20,共3页Journal of Materials Engineering

摘　　要：采用先驱体法合成钙钛矿相0.67PMN-0.33PT。XRD物相分析表明,MgO和PbO适当的过量有利于合成纯钙钛矿相的0.67PMN-0.33PT。采用MgO过量2%～4%,PbO过量5%～7%,在低于PbO熔点温度下合成单一钙钛矿结构的0.67PMN-0.33PT。The perovskite phase of (1 x)PMN xPT(0≤x≤1)has been synthesized by precursor method As it showed by the XRD,the excess of PbO and MgO is helpful to forming perovskite (1 x)PMN xPT Pure perovskite (1 x)PMN xPT can be synthesized at very low temperature,and therefore volatilization of PbO can be reduced

关 键 词：钙钛矿相 焦绿石相 先驱体法 弛豫型铁电体 氧化镁 氧化铅 PMN-PT 铁电材料 钛酸铅 

分 类 号：TM22[一般工业技术—材料科学与工程]