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BiFeO3–PbZrO3–PbTiO3 ternary system for high Curie temperature piezoceramics
Journal of the European Ceramic Society
  • Wei Hu, Iowa State University
  • Xiaoli Tan, Iowa State University
  • Krishna Rajan, Iowa State University
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BiFeO3–PbZrO3–PbTiO3 ternary solid solution system was investigated for the development of piezoelectric ceramics with high Curie temperatures. The search for the morphotropic phase boundary (MPB) compositions in this ternary system started from mixing two MPB compositions: 0.70BiFeO3–0.30PbTiO3 and 0.52PbZrO3–0.48PbTiO3. The content of PbTiO3 was then further fine tuned in order to reach the appropriate volume fraction between the rhombohedral and tetragonal phases in the sintered ceramics. It was observed that the sintering temperature has a profound impact on the density, grain morphology, dielectric and ferroelectric properties of the ceramics. The composition that displays the best combined structure and properties was identified to be 0.648BiFeO3–0.053PbZrO3–0.299PbTiO3, with a Curie temperature TC of 560 °C, a remanent polarization Pr of 15.0 μC/cm2, and a piezoelectric coefficient d33 of 64 pC/N.

NOTICE: this is the author’s version of a work that was accepted for publication in Journal of the European Ceramic Society. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Journal of the European Ceramic Society 31, 801-807 (2011). DOI:10.1016/j.jeurceramsoc.2010.11.015.

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Hu, et al.
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Wei Hu, Xiaoli Tan and Krishna Rajan. "BiFeO3–PbZrO3–PbTiO3 ternary system for high Curie temperature piezoceramics" Journal of the European Ceramic Society Vol. 31 Iss. 5 (2011) p. 801 - 807
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