The Material for Piezoelectric Power Transducers

  • L. Eyraud
Conference paper

Abstract

The mechanism of the stability in piezoceramics is examined, based on a double heterovalent substitution in order to vanish the space charges \(\rho = - div\vec P.\) In the case of power materials the losses are minimized by creating oxygen vacancies. The origins of the instabilities and ageing in these materials are approached.

Keywords

Oxygen Vacancy Equilibrium Configuration Internal Field Charge Migration Power Material 
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References

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    G.H. Jonker, J. Amer. Ceram. Soc. 55, 51 (1972)CrossRefGoogle Scholar
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    G.H. Jonker, P.V. Lambeck, Ferroelectrics 21, 641–643 (1978)CrossRefGoogle Scholar
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    Sadayuki Takahashi, Jpn J. Appl. Phys. 20, 95–101 (1981)ADSCrossRefGoogle Scholar
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    L. Eyraud, P. Eyraud, B. Claudel, J. of Sol. St. Chem. 53,266–272 (1984)ADSCrossRefGoogle Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 1988

Authors and Affiliations

  • L. Eyraud
    • 1
  1. 1.Laboratoire de Génie Electrique et FerroélectricitéINSAVilleurbanne CedexFrance

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