高级检索
无机材料学报

无机材料学报

• 研究论文 • 上一篇    下一篇

Fe,Ni掺杂(Zr,Sn)TiO4陶瓷的结构和介电性能

陈力颖1; 吴顺华1; 董向红2   

  1. 1. 天津大学电子信息工程学院; 2. 天津大学分析中心, 天津 300072
  • 收稿日期:2001-06-21 修回日期:2001-07-27 出版日期:2002-05-20 网络出版日期:2002-05-20

Structure and Dielectric Properties of Fe and Ni doped (Zr,Sn)TiO4 Ceramic

CHEN Li-Ying1; WU Shun-Hua1; DONG Xiang-Hong2   

  1. 1. College of Electronic Information Engineering; Tianjin University; 2. Analysis Center of Tianjin University; Tianjin 300072; China
  • Received:2001-06-21 Revised:2001-07-27 Published:2002-05-20 Online:2002-05-20

PDF (PC)

828

摘要： 用电子陶瓷工艺制备主晶相为(Ｚｒ,Ｓｎ)TiO4的介电陶瓷,(Ｚｒ;Ｓｎ)TiO4的结构属正交晶系,空间群Ｐｂｃｎ．研究用Ｆｅ,Ｎｉ掺杂对(Ｚｒ,Ｓｎ)TiO4陶瓷的介电性能的影响:铁掺杂降低了瓷料的烧结温度,同时减小了系统的Ｑ值(Ｑ＝１/ｔｇδ);但在一定的范围内,随着Ｎｉ掺杂量的增大,Ｑ值的下降被抑制,这可能是因为Ｎｉ离子阻碍了Ｆｅ离子扩散进入晶粒,使得Ｆｅ离子富集在晶界上,形成Ｆｅ－Ｎｉ尖晶石结构,减少了Ｆｅ对Ｑ值的影响．

关键词: （Zr, Sn）TiO4, 介电性能, Ni掺杂, Fe掺杂

Abstract: The dielectric ceramic with a main crystal phase of (Zr,Sn)TiO4 was prepared by conventional electronic
ceramics technology. The structure of (Zr,Sn)TiO4 is orthorhombic with space group Pbcn. The effects of Fe and Ni doping on the dielectric properties
of (Zr,Sn)TiO4 system ceramics were investigated. Fe dopants decrease the sintering temperature and reduce Q values of the system(Q=1/tgδ).
With both Fe and Ni doping, the decreasing of Q factor can be suppressed. Because of Ni ions probably suppressing the diffusion of Fe ions into the
grain, Fe ions stay at the grain boundaries and form the Fe-Ni spinel structure, which reduces the effects of Fe ions on Q values.

Key words: （Zr, Sn）TiO4, dielectric properties, Ni dopants, Fe dopants

中图分类号: