Order-disorder phenomena in MgAl2O4 spinel

The distribution of Al between octahedral and tetrahedral sites in MgAl2O4 spinel has been determined on quenched samples by high-resolution 27Al NMR spectroscopy. The relationships between T and degree of inversion, and between disorder and cell volume are analysed.

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Bibliographic Details
Published inThe American mineralogist Vol. 71; no. 7-8; pp. 999 - 1006
Main Authors Wood, Bernard J, Kirkpatrick, R. James, Montez, B
Format Journal Article
LanguageEnglish
Published Washington, DC Mineralogical Society of America 01.08.1986
Subjects
aluminum
Condensed matter: structure, mechanical and thermal properties
crystal chemistry
Crystalline state (including molecular motions in solids)
Crystallographic aspects of phase transformations; pressure effects
entropy
Exact sciences and technology
experimental studies
inverse problem
metals
mineral data
Mineralogy
minerals
NMR spectra
nonsilicates
order-disorder
oxides
phase equilibria
Physics
spectra
spinel
Structure of solids and liquids; crystallography
synthesis
unit cell
Aluminium Magnesium Oxides Mixed
Experimental study
Order disorder
NMR spectrum
Spinels
Inorganic compound
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Summary:The distribution of Al between octahedral and tetrahedral sites in MgAl2O4 spinel has been determined on quenched samples by high-resolution 27Al NMR spectroscopy. The relationships between T and degree of inversion, and between disorder and cell volume are analysed.
ISSN:0003-004X
1945-3027