Paper Title:
PZT Ceramics Prepared from Two Phase Gels
  Abstract

[Pb(Zr,Ti)(OAc)x(OR)y] acetate-alkoxide precursor was prepared by chelating from organic Pb, Zr and Ti alkoxides by their dissolution in various amounts of acetic acid (AcOH). The optimum mole ratio of (Pb+Zr+Ti) to AcOH for preparation gel is 1:7 and a pure perovskite phase is formed at 500 °C. At a low AcOH concentration, two-phase (pyrochlore and perovskite) regions are formed during gellation. During sintering, the decomposition of a pyrochlore phase and the formation of a perovskite phase takes place Dependences of dielectric permitivities and losses on temperature in final PZT ceramics were very similar and they were not influenced by the type of calcinate.

  Info
Periodical
Edited by
J. Dusza, R. Danzer and R. Morrell
Pages
353-357
DOI
10.4028/www.scientific.net/KEM.290.353
Citation
J. Briančin, Ľ. Medvecký, H. Bruncková, M. Kmecová, "PZT Ceramics Prepared from Two Phase Gels ", Key Engineering Materials, Vol. 290, pp. 353-357, 2005
Online since
July 2005
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$32.00
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