Piezoelectric ceramics of the PbTiO3-La(Me2/3Nb1/3)O3 (Me: Mg,Zn) Solid Solution System

Shoichiro Nomura, Kumiko Kaneta, Jun Kuwata, Kenji Uchino

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Solid solutions with a perovskite structure are formed in the PbTiO3-La(Me2/3Nb1/3)O3 (Me:Mg,Zn) systems up to about 70 mol% of La(Me2, Nb. )0. Structural, dielectric, electromechanical and dilatational properties of the ceramics have been measured as functions of composition and temperature. The electromechanical coupling constants k and k at room temperature are 28% and 68%, respectively, in the composition1 near lo mol% of La(Mg2/3Nb1/3)O3. The temperature coefficient of the radial mode resonance frequency less than I ppmK-1 is obtained in the vicinity of 10 mol% of La(Me, Nbn,)0 with a small amount of MnO additive.

Original languageEnglish (US)
Pages (from-to)587-590
Number of pages4
Issue number1
StatePublished - Oct 1981

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics


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