Preparation and temperature dependence of electrostriction properties for PMN-based composite ceramics

  • JingboZhao
  • Qu S
  • Du H
 et al. 
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Both low- and high-temperature units were prepared by columbite precursor method, and Pb(Mg1/3Nb2/3)O3(PMN)-based ferroelectric composite ceramics were prepared by conventional method, baking-block method and coating method, respectively. The effects of preparation methods on dielectric and electrostriction properties as well as the temperature-dependence property of the obtained composite ceramics were studied. The results show that compared with the samples prepared by traditional blend sintering method, of the samples prepared by baking-block and coating methods have much better dielectric and electrostriction properties. For those prepared by baking-block method, the electrostriction temperature-dependence properties are good in the range of 20-60 °C. For those prepared by coating method, the dielectric temperature-dependence properties are also good in the broad range of -30 to 70 °C, and the electrostriction temperature properties are better than those prepared by blending-block. Compared with the traditional blending sintering method, the dielectric and electrostriction temperature-dependence properties are much better, which effectively solves the problem of temperature properties existing in present engineering applications. © 2009 Elsevier B.V. All rights reserved.

Author-supplied keywords

  • Coating
  • Electrostriction
  • PMN-based composite ceramics
  • Temperature-dependence properties

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  • JingboZhao

  • Shaobo Qu

  • Hongliang Du

  • Yanju Zheng

  • Zhuo Xu

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