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

Phase formation in the ZrO2 — HfO2 — Gd2O3 and ZrO2 — HfO2 — Yb2O3 systems 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. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Refractories and Industrial Ceramics Springer Journals

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

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Publisher
Springer US
Copyright
Copyright © 2000 by Kluwer Academic/Plenum Publishers
Subject
Chemistry; Characterization and Evaluation of Materials; Materials Science; Ceramics, Glass, Composites, Natural Methods
ISSN
1083-4877
eISSN
1573-9139
D.O.I.
10.1007/BF02762623
Publisher site
See Article on Publisher Site

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.

Journal

Refractories and Industrial CeramicsSpringer Journals

Published: Nov 21, 2007

References

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