摘要
采用常规固相反应法制备(Sr,Ba,Ca)TiO_3基压敏陶瓷,在Mn作为受主掺杂元素,Nb^(5+)离子取代Ti^(4+)离子的前提下,用Dy^(3+)或Nd^(3+)离子取代Sr^(2+)离子,并系统研究掺杂Dy或Nd对(Sr,Ba,Ca)TiO_3基压敏陶瓷性能和结构的影响。结果表明:掺杂Dy或Nd可以制备出V_(10mA)=4.16~39.37V,α=2.45~3.23的压敏陶瓷。
(Sr, Ba, Ca) TiO3-based varistor ceramics were prepared by means of conventional solid reaction. The effects of Dy2O3 or Nd2O3 doping on (Sr, Ba, Ca) TiO3-based varistor ceramics were investigated when doping Nb2O5 and MnCO3, especially the varistor voltage and nonlinear coefficient. The results show that excellent electrical properties of (Sr, Ba, Ca) TiO3-based varistor ceramics can be prepared by doping Dy2O3 or Nd2O3.
出处
《稀有金属材料与工程》
SCIE
EI
CAS
CSCD
北大核心
2007年第A02期206-208,共3页
Rare Metal Materials and Engineering
基金
清华大学材料科学与工程系新型陶瓷与精细工艺国家重点实验室开放课题基金(X.GZ0207)