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Order and Disorder in the Oxygen-Deficient Fluorite-Related Oxides*

Published online by Cambridge University Press:  21 February 2011

Leroy Eyring
Leroy Eyring*
Affiliation:
Department of Chemistry and the Center for Solid State Science, Arizona State University, Tempe, Arizona 85287, USA
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Abstract

The fluorite-related oxides have many uses in applied materials science and they present an excellent subject for study in solid state science. They exhibit examples of nonstoichiometric phases of wide composition range and series of ordered intermediate phases. Some details of the ordering of oxygen vacancies in the nonstoichiometric fluorite-related phases of the rare earth oxides are presented, including imaging of the process at high resolution in the electron microscope. Other highresolution studies of the ordered intermediate phases have revealed the structural principles that relate members of the homologous series RnO2n−2 Other ordered structures not belonging to the series are also discussed and the whole related to the zirconia and hafnia systems stabilized by calcia and yttria.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 24: Symposium B – Defect Properties and Processing of High-Technology Nonmetallic Materials , 1983 , 187
Copyright
Copyright © Materials Research Society 1984

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Footnotes

*

Supported by the National Science Foundation Grant DMR81-80306.

References

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