Refractories and Industrial Ceramics

, Volume 40, Issue 7–8, pp 309–312 | Cite as

High-strength ceramic materials based on polycrystalline tetragonal ZrO2 stabilized by Lu2O3

  • L. I. Podzorova
  • A. A. Il’icheva
  • N. A. Mikhailina
  • O. I. Pen’kova
Research

Abstract

The effect of Lu2O3 on low-temperature stabilization of the tetragonal modification of ZrO2 is considered. The subject of study is ZrO2 - Lu2O3 binary systems with 1 –9 mole % Lu2O3 for specimens of ZrO2 powders prepared by the method invented by the authors. It is established that low-temperature stabilization oft- ZrO2 occurs in the region of 6 –8 mole % concentration of Lu2O3. The obtained ceramic material has a density of 99.8% of the theoretical value, an ultimate bending strength of at least 800 MPa, and a crack resistance of at least 13 MPa · m1/2 at a content of Lu2O3 equal to 6 –8 mole %

Keywords

Tetragonal Phase Anion Vacancy Lu2O3 Tetragonal ZrO2 Polyvinylbutyral 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
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Copyright information

© Kluwer Academic/Plenum Publisfers 2000

Authors and Affiliations

  • L. I. Podzorova
    • 1
  • A. A. Il’icheva
    • 1
  • N. A. Mikhailina
    • 1
  • O. I. Pen’kova
    • 1
  1. 1.Institute of Physicochemical Problems of Ceramic Materials of the Russian Academy of SciencesMoscowRussia

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