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Role of an intermetallic phase on the crystallization of sol-gel prepared lead zirconate titanate thin films

  • Z. Huang
  • , Q. Zhang
  • , R. W. Whatmore

Research output: Contribution to conferencePaperpeer-review

Abstract

Lead zirconate titanate (PZT) thin films have been prepared by a sol-gel method and been characterized by X-ray diffraction (XRD) and transmission electron microscopy (TEM). A metastable Pt3Pb intermetallic phase has been identified. Perovskite PZT was found to nucleate on top of the intermetallic phase. The improved lattice match between the intermetallic (a0 = 4.05 angstroms) and perovskite PZT (a0 = 4.035 angstroms) as compared to between Pt (a0 = 3.9231 angstroms) and the perovskite is believed to substantially reduce the activation energy for the nucleation of perovskite on Pt. Using this effect, (111) perovskite PZT has been grown at a temperature as low as 440 °C. The crystallization kinetics studies gave an activation energy of 179 kJ/mole for the phase transformation from pyrochlore to perovskite.

Original languageEnglish
Pages151-154
Number of pages4
Publication statusPublished - 1998
Externally publishedYes
EventProceedings of the 1998 11th IEEE International Symposium on Appliations of Ferroelectrics (ISAF-XI) - Montreaux, Switz
Duration: 24 Aug 199827 Aug 1998

Conference

ConferenceProceedings of the 1998 11th IEEE International Symposium on Appliations of Ferroelectrics (ISAF-XI)
CityMontreaux, Switz
Period24/08/9827/08/98

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