先驱体合成法制备PMN-PT弛豫铁电体及其表征  

PREPARATION AND CHARACTERIZATION OF PMN-PT RELAXATION FERROELECTRIC POWDER BY COLUMBITE PRECURSOR METHOD

作　　者：邓金侠[1] 邢献然[1] 于然波[1] 陈骏[1] 邢奇凤[1] 罗君[1] 刘桂荣[1] 

机构地区：[1]北京科技大学理化系,北京100083

出　　处：《金属学报》2005年第5期503-506,共4页Acta Metallurgica Sinica

基　　金：国家自然科学基金项目50374009;20331030教育部博士点 基金项目2001008005资助

摘　　要：采用先驱体合成法,以氧化物为原料制备了钙钛矿结构的(1-x)PMN-xPT弛豫铁电陶瓷粉末,研究了预烧温度以及PbTiO3固溶量等工艺参数对样品的相结构的影响.结果表明,随预烧温度升高, PMN-PT钙钛矿相含量增加,但温度过高,由于PbO的挥发钙钛矿相又减少;增加PbTiO3也可使钙钛矿相含量增加.(1-x)PMN-xPT relaxation ferroelectric fine powders were prepared by a columbite, precursor method with simple oxides as starting materials. The effects of calcining temperature and solid solution amount of PbTiO3 on the phase formation and structure were investigated. The results indicate that the quantity of the perovskite phase increased gradually with increasing the calcinated temperature in an appropriate range and the amount of PbTiO3.

关 键 词：PMN-PT 弛豫铁电体 先驱体合成法 相结构 

分 类 号：TM22[一般工业技术—材料科学与工程] TF123.1[电气工程—电工理论与新技术]