Subsolidus phase relationships in the ZrO2-rich part of the ZrO2–Zr3N4 system
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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.
KeywordsZirconia Type Phase Anion Vacancy Position Sensitive Detector Incorporated Nitrogen
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- 1.V. S. Stubican, “Advances in Ceramics”, Vol. 24, “Science and Technology of Zirconia III”, edited by S. Somiya, N. Yamamoto, H. Yanagida (The American Ceramic Society, Westerville, 1988) p. 71.Google Scholar
- 9.J. C. Gilles, Bull. Soc. Chim. Fr. 22 (1962) 2118.Google Scholar
- 11.Y. B. Cheng and D. P. Thompson, Special Ceram. 9 (1992) 149.Google Scholar
- 14.M. Lerch, F. Krumeich, and R. Hock, in “Transformation Kinetics and Reactivity of Solids”, edited by P. Grange et al., Louvain-la-Neuve, (1995) p. 123.Google Scholar
- 15.R. Hock, M. Lerch, K. S. Knight and H. Boysen, Z. Kristallogr. Suppl. 9 (1995) 298.Google Scholar
- 16.M. Lerch, R. Hock and E. FÜglein, ibid. 9 (1995) 193.Google Scholar
- 17.M. Lerch, L. Jacobsen and G. MÜller, ibid. 8 (1994) 256.Google Scholar
- 19.M. Lerch, D. Walter, O. RahÄuser, W. Laqua and K. S. Knight, Z. Kristallogr. Suppl. 9 (1995) 305.Google Scholar