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Transformation of the corundum structure upon high-temperature reduction.
- Source :
- Crystallography Reports; Dec2008, Vol. 53 Issue 7, p1112-1118, 7p, 3 Diagrams, 4 Charts, 3 Graphs
- Publication Year :
- 2008
-
Abstract
- This paper reports on the results of investigations into the transformation of the corundum structure upon reducing annealing at high temperatures in the range from 1700 to 2050°C. It is established that the reduction results in the transformation of corundum into new phases with a lower oxygen content, including the phase with a spinel structure. These structures are assumed to be stabilized by anion vacancies. A model of the crystal structure of the spinel phase is proposed. This model provides an adequate description of the compound obtained in the experiment. [ABSTRACT FROM AUTHOR]
- Subjects :
- CORUNDUM
GEMS & precious stones
ANNEALING of crystals
SPINEL
HIGH temperatures
Subjects
Details
- Language :
- English
- ISSN :
- 10637745
- Volume :
- 53
- Issue :
- 7
- Database :
- Complementary Index
- Journal :
- Crystallography Reports
- Publication Type :
- Academic Journal
- Accession number :
- 35354379
- Full Text :
- https://doi.org/10.1134/S1063774508070031