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Crystallographic Features of Rhenium Disilicide

Published online by Cambridge University Press:  01 February 2011

K. Tanaka ,
H. Inui ,
T. Ohba ,
S. Tsutsui  and
M. Mizumaki
K. Tanaka
Affiliation:
Department of Advanced Materials Science, Kagawa University, Takamatsu 761–0396, Japan
H. Inui
Affiliation:
Department of Materials Science and Engineering, Kyoto University, Sakyo-ku, Kyoto 606–8501, Japan
T. Ohba
Affiliation:
Department of Material Science, Shimane University, Matsue 690–8504, Japan
S. Tsutsui
Affiliation:
Japan Synchrotron Radiation Research Institute, Sayo 679–5198, Japan
M. Mizumaki
Affiliation:
Japan Synchrotron Radiation Research Institute, Sayo 679–5198, Japan
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Abstract

Crystallographic features of Rhenium disilicide have been examined by powder and single-crystal X-ray diffractometry with a synchrotron radiation. The chemical composition of the compound is determined as Re4Si7 (ReSi2-x, x = 0.25) from lattice constants and specific density determined. The structure is defined as a vacancy ordered structure with the space group of Cm. The positions of the constituent atoms in the structure have been refined. The positions of silicon atoms apparently shift from the ideal positions of the C11b structure which is the structure without containing structural vacancies.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 793: Symposium S – Thermoelectric Materials 2003 - Research and Applications , 2003 , S8.31
Copyright
Copyright © Materials Research Society 2004

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References

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