Dielectric and electromechanical properties of pbti03-la(zn2/3nb1/3)03 solid solution ceramics

Shoichiro Nomura, Kumiko Kaneta, Jun Kuwata, Yuzuru Tsuchiya, Kenji Uchino

Research output: Contribution to journalArticle

2 Scopus citations

Abstract

Solid solutions in the PbTi03-La(Zn2/3Nbi/3)03 system are formed with a perovskite structure up to 70 mol % of La(Zn2/3Nb1/3)03 content. Dielectric and electromechanical properties of the ceramics have been measured as functions of temperature. The ferroelectric Curie temperature decreases linearly with increasing La(Zn2/3Nbi3)03 content. The planar coupling factor kp at room temperature shows a maximum of 23% in the composition with 13 mol% of La(Zn2/3Nbi/3)03. A minimum of the temperature coefficient of the planar resonance frequency \Af/fAT\ at room temperature (3.7 x 10“5 K-1) is obtained at 10.5 mol% of La(Zn2/3Nb1/3)03. By adding a small amount of Mn02 to the ceramics, the order of magnitude of \Af/fAT\ can be reduced to 10“6 K-1.

Original languageEnglish (US)
Pages (from-to)L241-L244
JournalJapanese Journal of Applied Physics
Volume20
Issue number3
DOIs
StatePublished - Mar 1981

All Science Journal Classification (ASJC) codes

  • Engineering(all)
  • Physics and Astronomy(all)

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