Mixed oxides of titanium and niobium: Defects in quenched samples

Samples of mixed oxides having the compositions TiO 2.26Nb 2O 5 and TiO 2.7Nb 2O 5 have been quenched from temperatures near the liquidus, in order to freeze in high concentrations of defects. The structure of the quenched materials has been investigated by electron microscopy. Lattice images of sui...

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Bibliographic Details
Published in:Journal of solid state chemistry 1970, Vol.2 (1), p.78-93
Main Author: Allpress, J.G.
Format: Article
Language:English
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Summary:Samples of mixed oxides having the compositions TiO 2.26Nb 2O 5 and TiO 2.7Nb 2O 5 have been quenched from temperatures near the liquidus, in order to freeze in high concentrations of defects. The structure of the quenched materials has been investigated by electron microscopy. Lattice images of suitably oriented fragments contain sufficient information to enable detailed structural models of the defects within them to be derived. These models indicate that the observed defects, which include Wadsley intergrowth defects and several different kinds of displacements of shear planes, are accommodated coherently and without gross misfit of the components of the structure.
ISSN:0022-4596
1095-726X
DOI:10.1016/0022-4596(70)90037-X