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The Pyrochlore-to-Perovskite Transformation in Solution-Derived Lead Zirconate Titanate Thin Films

  • James A. Voigt (a1), B.A. Tuttle (a1), T.J. Headley (a1) and D.L. Lamppa (a1)
Abstract
ABSTRACT

We have characterized the pyrochlore-to-perovskite crystallization process in solution-derived Pb(Zr0.20Ti0.80)O3 thin films on (100) MgO single crystal substrates. It has been determined that the perovskite phase nucleated preferentially at the film/MgO interface out of a nanocrystalline (≈100Å grains) pyrochlore matrix. During the early stages of the pyrochlore-to-perovskite conversion process, perovskite growth proceeded nearly isotropically from the substrate to form hemispherically shaped grains. Deviations from isotropie growth were shown to result from a growth dependence based on the crystallographic orientation of a growing perovskite grain relative to the orientations of pyrochlore grains being transformed. The volume change that occurs during the pyrochlore-to-pervoskite transformation along with two-dimensional grain growth has been used to develop a mechanism for formation of porosity that commonly is concentrated in grain boundary regions.

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1. (a) Ferroelectric Thin Films, edited by Myers E.R. and Kingon A.I. (Mater. Res. Soc. Proc. Pittsburgh, PA, 1990);
(b) Ferroelectric Thin Films II. edited by Kingon A.I., Myers E.R., and Tuttle B.A. (see Ref. 1(a), 1992); and
(c) Ferroelectric Thin Films HI. edited by Myers E.R., Tuttle B.A., Desu S.B., and Larsen P.K. (see Ref. 1(a), 1993).
2. Tuttle B.A., Voigt J.A., Goodnow D.C., Lamppa D.L., Headley T.J., Eatough M.O., Zender G., Nasby R.D., and Rodgers S.M., J. Amer. Ceram. Soc. 76 (6), 1573 (1993).
3. Kwok C.K. and Desu S.B., J. Mater. Res. 9, 1728 (1994)
4. Hsueh C.C. and Mecartney M.L., J. Mater. Res. 6, 2208 (1991).
5. Seifert A., Lange F.F., and Speck J.S., J. Mater. Res. 10, March (1995).
6. Voigt J.A., Tuttle B.A., Headley T.J., Eatough M. O., Lamppa D.L., and Goodnow D., see Ref. 1c, pp. 1522.
7. Schwartz R.W., Bunker B.C., Dimos D., Assink R.A., Tallant D.R., Weinstock I., and Haaland D.M., Int. Ferroelectrics 2, 243 (1992).
8. Martin F.W., Phys. Chem. Glasses 6, 143 (1965).
9. Shirane G., Hoshino S., and Suzuki K., Phys. Rev. 80, 1105 (1950).
10. Morosin B., Lawson A.C., Kwei G.H., Voigt J.A., and Tuttle B. A., in Neutron Scattering in Materials Science, edited by Neumann D.A., Russell T.P., and Wuensch B.J. (Mater. Res. Soc. Proc. Pittsburgh, PA, 1995).
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MRS Online Proceedings Library (OPL)
  • ISSN: -
  • EISSN: 1946-4274
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