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X-ray powder diffraction characterization of the large-volume unit cell of the M8 murataite polytype

Published online by Cambridge University Press:  17 February 2016

Ryosuke S. S. Maki ,
Peter E. D. Morgan  and
Yoshikazu Suzuki
Ryosuke S. S. Maki
Affiliation:
Graduate School of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Ibaraki 305-8573, Japan
Peter E. D. Morgan
Affiliation:
Department of Chemical Engineering and Materials Science, University of California Irvine, California 92697
Yoshikazu Suzuki*
Affiliation:
Graduate School of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Ibaraki 305-8573, Japan Faculty of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Ibaraki, 305-8573, Japan
*
a)Author to whom correspondence should be addressed. Electronic mail: suzuki@ims.tsukuba.ac.jp
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Abstract

We have used conventional X-ray powder diffraction to study one of the largest volume inorganic mixed oxide unit-supercell structures done so far. This necessitated some small-angle X-ray scattering-like observations at low angles from <2° 2θ to concord with electron diffraction, which had indicated an 8 × 8 × 8 huge volume supercell of a fluorite-type basic sub-cell. Emphasis is on the detection of, possibly very weak, fingerprint, low-angle/long lines/peaks which will indicate the (often unsuspected) presence of complex polytypic arrangements of simple very strong basic sub-cells and so facilitate future synthetic studies.

Keywords

murataitesmall-angle X-ray scatteringfluorite-type basic sub-celltranquillityiteYBO3
Type
Technical Articles
Information
Powder Diffraction , Volume 31 , Issue 1 , March 2016 , pp. 8 - 15
Copyright
Copyright © International Centre for Diffraction Data 2016 

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