西华大学学报（自然科学版）2013，Vol.32Issue(2)：68-71,4.DOI:10.3969/j.issn.1673-159X.2013.02.016
A位Y3+替代α-BZN陶瓷结构及介电性能研究
Structure and Dielectric Properties of Y3+ Doped α-BZN based Ceramics
摘要
Abstract
Ceramics ( Bi1.5-xYxZn0.5) (Zn0.5Nb1.5)O7 ( BYZN,0≤x≤0. 2mol) was prepared by a solid phase reaction. The structure and dielectric properties of Y doped on A site were studied by X - ray diffraction method and scanning electron microscope and Agilent 4284A testing analyzer. The samples exhibited a single cubic pyrochlore phase when Y3+ substitution x <0. 15 mol ,and the second phase appeared when X3+ content increased. The grain size and dielectric properties of BYZN samples changed regularly with the increasing of doping substitution. The peak temperature of dielectric relaxtion moved from - 117 ℃ to - 108℃ at 1MHz and the εr - T peak was decreased and broaden when substitution x≤0. 15 mol.关键词
BZN/立方焦绿石/替代/介电弛豫Key words
α - BZN/ cubic pyrochlore/ substitution/ dielectric relaxtion分类
信息技术与安全科学引用本文复制引用
徐琴,丁士华,宋天秀,张倩..A位Y3+替代α-BZN陶瓷结构及介电性能研究[J].西华大学学报（自然科学版）,2013,32(2):68-71,4.基金项目
国家自然科学基金(11074203) （11074203）
西华大学人才基金(R0620109) （R0620109）
西华大学研究生创新基金(YCJJ201257,YCJJ201258) （YCJJ201257,YCJJ201258）
