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Phase formation in the ZrO2 — HfO2 — Gd2O3 and ZrO2 — HfO2 — Yb2O3 systems

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Refractories and Industrial Ceramics Aims and scope

Abstract

The formation of phases and properties of solid solutions and Gd2Zr2O7 and Yb4Zr3O12 chemical compounds in the ZrO2 — Gd2O3 and ZrO2 — Yb2O3 systems are studied. The compounds undergo a phase transformation of the type“order — disorder” and melt incongruently. The data on the parameters of the elementary cells, the melting temperatures, and the TCLE of phases in the ZrO2 — Gd2O3 and ZrO2 — Yb2O3 systems are presented. These data are compared with similar data for phases based on HfO2. The considered solid solutions are shown to be promising for the production of high-temperature, heat-insulating ceramics for growing single crystals.

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Authors and Affiliations

  1. A. S. Berezhnoi Ukrainian Research Institute of Refractories, Kharkov, Ukraine

    A. G. Karaulov & E. I. Zoz

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  1. A. G. Karaulov
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  2. E. I. Zoz
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Karaulov, A.G., Zoz, E.I. Phase formation in the ZrO2 — HfO2 — Gd2O3 and ZrO2 — HfO2 — Yb2O3 systems. Refract Ind Ceram 40, 479–483 (1999). https://doi.org/10.1007/BF02762623

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