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Metastable Phases of Alumina

Published online by Cambridge University Press:  21 February 2011

A. Dauger ,
D. Fargeot  and
J.P. Laval
A. Dauger
Affiliation:
Laboratoire de Céramiques Nouvelles - L.A. C.N.R.S. No 320, Avenue Albert Thomas, 87065 LIMOGES CEDEX, FRANCE
D. Fargeot
Affiliation:
Laboratoire de Céramiques Nouvelles - L.A. C.N.R.S. No 320, Avenue Albert Thomas, 87065 LIMOGES CEDEX, FRANCE
J.P. Laval
Affiliation:
Laboratoire de Céramiques Nouvelles - L.A. C.N.R.S. No 320, Avenue Albert Thomas, 87065 LIMOGES CEDEX, FRANCE
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Abstract

Plasma sprayed pure alumina samples have been studied by Transmission Electron Microscopy and X–Ray diffraction. The main families of metastable forms (γ δ and θ) have been observed in as-sprayed or in annealed states. All derive from a spinel structure through a periodic antiphase boundaries mechanism, together with an ordering of vacant sites in the cationic sublattice.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 21: Symposium GREECE – Phase Transformations in Solids , 1983 , 207
Copyright
Copyright © Materials Research Society 1984

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References

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