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Polythermal sections of the Al2O3-ZrO2-Y2O3 phase diagram

  • Powder-Material Research Methods And Properties
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Powder Metallurgy and Metal Ceramics Aims and scope

Abstract

Polythermal sections of the Al2O3-ZrO2-Y2O3 phase diagram confirm that the system is quasibinary and enable one to give a complete phase diagram for the system. The ternary eutectic Al2O3 + ZrO2 (solid solution) + Y3Al5O12 has the lowest melting point in the system, whose temperature is 1715°C. No single-phase regions for the ternary solid solutions have been identified, which indicates that Al2O3 is not soluble in solid solutions based on F-ZrO2 and C-Y2O3. This gives theoretical evidence for the scope for making new ceramics in this ternary system, which may have a high level of mechanical characteristics.

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Authors
  1. S. N. Lakiza
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  2. L. M. Lopato
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  3. I. E. Kir'yakova
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Additional information

Materials Science Institute, Ukrainian National Academy of Sciences, Kiev. Translated from Poroshkovaya Metallurgiya, Nos. 11–12(382), pp. 74–79, November–December, 1995.

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Lakiza, S.N., Lopato, L.M. & Kir'yakova, I.E. Polythermal sections of the Al2O3-ZrO2-Y2O3 phase diagram. Powder Metall Met Ceram 34, 655–659 (1996). https://doi.org/10.1007/BF00559497

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  • DOI: https://doi.org/10.1007/BF00559497

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