Effect of silver doping on microstructure and electric properties of PZN-PZT based ceramics - 文章详情页

作者：

Zhang, Z. (Zhang, Z..) | Hou, Y. (Hou, Y..) | Cui, C. (Cui, C..) | Wang, C. (Wang, C..) | Zhu, M. (Zhu, M..)

收录：

Scopus PKU CSCD

摘要：

0.2Pb(Zn1/3Nb2/3)O3-0.8　Pb(Zr0.5Ti0.5)O3　(0.2PZN-0.8PZT)　ceramics　were　prepared　by　conventional　mixed　oxide　method,　and　the　effect　of　Ag　doping　on　the　microstructure　and　electric　properties　of　0.2PZN-0.8PZT　was　investigated　in　detail.　The　results　revealed　that　the　solubility　limit　of　Ag+　in　perovskite　lattice　was　near　0.1%.　Below　the　solubility　limit,　Ag+　entered　A　site　of　ABO3　structure　to　replace　Pb2+,　and　played　as　doping　role　to　influence　the　electric　properties.　While　at　high　doping　level　above　the　solubility　limit,　the　excess　Ag　accumulated　at　grain　boundaries　as　the　form　of　pure　Ag　particles,　which　were　homogenously　dispersed　in　the　0.2PZN-0.8PZT　matrix.　The　Ag　particles　induced　the　inner　stress　during　the　cooling　stage　after　sintering,　resulting　in　the　transformation　of　domain　structure　and　the　variation　of　the　resistivity　and　piezoelectric　properties.

关键词：

Composite; Ferroelectric domain; Microstructure; Piezoelectric property; PZN-PZT ceramic

作者机构：

[ 1 ] [Zhang, Z.]College of Materials Science and Engineering, Beijing University of Technology, Beijing 100124, China
[ 2 ] [Hou, Y.]College of Materials Science and Engineering, Beijing University of Technology, Beijing 100124, China
[ 3 ] [Cui, C.]College of Materials Science and Engineering, Beijing University of Technology, Beijing 100124, China
[ 4 ] [Wang, C.]College of Materials Science and Engineering, Beijing University of Technology, Beijing 100124, China
[ 5 ] [Zhu, M.]College of Materials Science and Engineering, Beijing University of Technology, Beijing 100124, China

通讯作者信息：

[Hou, Y.]College of Materials Science and Engineering, Beijing University of Technology, Beijing 100124, China

电子邮件地址：

ydhou@bjut.edu.cn

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