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Journal of Materials Science

, Volume 32, Issue 5, pp 1357–1363 | Cite as

Subsolidus phase relationships in the ZrO2-rich part of the ZrO2–Zr3N4 system

  • M LERCH
  • O RAHAUSER
Article

Abstract

Zirconia can be stabilized by incorporation of nitrogen. The phase relationships in the ZrO2-rich part of the system ZrO2–Zr3N4 have been investigated using high-temperature X-ray methods. At temperatures above 1000°C, a tetragonal and a cubic phase with randomly distributed vacancies exists, depending on the amount of incorporated nitrogen. This high-temperature behaviour is similar to that of systems like ZrO2–Y2O3, which is another indication for the important role of anion vacancies in zirconia systems. Below 1000°C, β-type phases with an ordered arrangement of anion vacancies are stable.

Keywords

Zirconia Type Phase Anion Vacancy Position Sensitive Detector Incorporated Nitrogen 

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Copyright information

© Chapman and Hall 1997

Authors and Affiliations

  • M LERCH
    • 1
  • O RAHAUSER
  1. 1.SilicatchemieUniversitat WurzburgGermany

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