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Electron microscopic study of the mixed oxide (WO,35VO,65)2O5》.pdf
Mat. Res. Bull. Vol. 5, pp, Z75-Z80, 1970. Pergamon Press, Inc. Printed
in the United States.
ELECTRON MICROSCOPIC STUDY OF THE MIXED OXIDE (Wo,35Vo,65)205
J.Van Landuyt, R.Vochten and S.Amelinckx
Fakulteit der Wetenschappen
Rijksuniversitair Centrum Antwerpen~ Belgium
(Received February Z0, 1970; Communicated by S. Amelinckx)
ABSTRACT
The mixed oxide (Wo,35Vo,65)205 has been studied by el-
ectron microscopy and electron diffraction.
The structure of this oxide can be derived from the ba-
sic ReO 3 structure by a double shear mechanism. The two
sets of shear planes could be directly resolved; this
observation is incomplete agreement with the model pro-
posed by Israelson and Kihlborg (4). Also the relative
intensity of the electron diffraction spots give direct
support to the interpretation of this structure as a
shear structure.
In latest years the technique of lattice resolution, first
introduced by Menter (i), has gained considerable importance in the
study of crystal structures, particularly of shear structures(2,3).
The crystal structure of a new mixed oxide of tungsten and
vanadium with the approximate composition (Wo,35Vo,65)205 was re-
cently described by Israelson and Kihlborg (4). The structure can
be considered as a shear structure in the sense defined by Wadsley
and Anderson (5). It can be derived from the basic ReO structure
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