多铁性复合陶瓷xZnFe_2O_4/(1-x)PZN-PZT的制备及性能  

Preparation and Properties of xZnFe_2O_4/(1-x)PZN-PZT Composite Multiferroic Ceramics

作　　者：邓浩亮[1,2] 张铭[1] 郑木鹏[1] 胡州[1] 谢群锋[1] 仲麒[1] 严辉[1] 

机构地区：[1]北京工业大学,北京100124 [2]天津职业技术师范大学,天津300222

出　　处：《稀有金属材料与工程》2013年第S1期168-170,共3页Rare Metal Materials and Engineering

基　　金：国家自然科学基金资助(11174021;51002013);北京市自然科学基金资助(4072006)

摘　　要：采用传统的固相反应法,制备了xZnFe2O4/(1–x)PZN-PZT系列的多铁性复合陶瓷,并研究了不同组分对该复合材料的结构、介电、铁电以及磁性的影响。研究表明:尖晶石结构的ZnFe2O4有助于稳定该材料的四方相结构;复合材料的介电、铁电性质强烈地依赖于材料的组分,当x=2.5(质量分数,%)时,介电常数、剩余极化强度以及矫顽场都达到最大值;此外,复合材料的磁性与纯的ZnFe2O4陶瓷有显著的不同。Multiferroic composites xZnFe2O4 /(1-x)PZN-PZT were prepared by a conventional solid state reaction method. X-ray diffraction reveals that the spinel Zn ferrite can stabilize tetragonal phase against rhombohedral phase. The dielectric and ferroelectric properties of the multiferroic composites are strongly dependent on the composition of multiferroic composites. Whenx= 2.5, the dielectric constant, the remnant polarization and the coercive field of multiferroic composites simultaneously reach their maximum. The magnetic properties of corresponding composites are very different from that of pure ZnFe2O4 ceramic sample.

关 键 词：多铁性 复合 陶瓷 

分 类 号：TM28[一般工业技术—材料科学与工程]