Glass Physics and Chemistry

, Volume 33, Issue 5, pp 510–514 | Cite as

Phase transformations in t-ZrO2-Al2O3 nanoprecursors and formation of the microstructure of related ceramic materials

  • L. I. Podzorova
  • A. A. Il’icheva
  • L. I. Shvorneva
  • S. V. Kutsev
  • N. A. Mikhailina
  • O. I. Pen’kova
Article

Abstract

The phase transformations in nanosized precursors (precipitation products) prepared by the sol-gel processing and the formation of the microstructure of ceramic materials in the t-ZrO2-Al2O3 system are investigated. It is demonstrated that the phase transformation occurring during the precipitation depends on the precrystallization state that is governed by a sequence of precipitation of the components in the Al2O3-ZrO2-CeO2 system in the course of the synthesis of precursors. The nascent metastable phases of solid solutions based on t-ZrO2 and θ-Al2O3 subsequently have a substantial effect on the sizes of grains in the microstructure of the corresponding ceramics.

Keywords

Ceramic Material Ceramic Sample Glass Physic Lanthanum Chromite Metastable Solid Solution 

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Copyright information

© Pleiades Publishing, Ltd. 2007

Authors and Affiliations

  • L. I. Podzorova
    • 1
  • A. A. Il’icheva
    • 1
  • L. I. Shvorneva
    • 1
  • S. V. Kutsev
    • 1
  • N. A. Mikhailina
    • 1
  • O. I. Pen’kova
    • 1
  1. 1.Institute of Physicochemical Problems in Ceramic MaterialsRussian Academy of SciencesMoscowRussia

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