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High stability of dielectric permittivity for Pb(Mg1/3Nb 2/3)O3-based composite ceramics prepared by coating method

  • Jingbo Zhao
  • , Hongliang Du
  • , Shaobo Qu
  • , Hongmei Zhang
  • , Zhuo Xu
  • Air Force Engineering University Xian
  • Northwestern Polytechnical University Xian

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

To improve the temperature stability of PMN(Pb(Mg1/3Nb 2/3)O3)-based ceramics, PMN-based composite ceramics were prepared by co-sintering two kinds of ceramics with different curie temperature. One unit is MHT(0.82PMN (Pb (Mg1/3Nb2/3) O3) -0.18PT (PbTiO3) (the curie temperature Tm=74°C)), and the other unit is MLT (0.88PMN (Pb (Mg1/3Nb2/3) O 3)-0.12BT (BaTiO3) (the curie temperature Tm=-50°C)). The effects of the sintering temperature and the ratio of high and low T m units on dielectric temperature stability were studied. The results show that the temperature stability can be improved greatly by co-sintering and coating method. The results show that PMN(Pb(Mg1/3Nb 2/3)O3)-based composite ceramics are promising candidate for practical applications.

Original languageEnglish
Title of host publicationFunctional and Electronic Materials
PublisherTrans Tech Publications Ltd
Pages450-456
Number of pages7
ISBN (Print)9783037851692
DOIs
StatePublished - 2011

Publication series

NameMaterials Science Forum
Volume687
ISSN (Print)0255-5476
ISSN (Electronic)1662-9752

Keywords

  • Composite ceramics
  • Dielectric permittivity
  • PMN
  • Temperature stability

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