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Structural Refinement and Homogeneity Range of Sm6Al3Si

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Abstract:

The structure of the compound Sm6Al3Si was refined from X-ray powder diffraction data (Tb6Al3Si structure type, space group I4/mcm, a = 11.733(1), c = 15.266(2) Å, Z = 8, RB = 0.0569). Its homogeneity range extends from 10 to 22 at.% Si and the following formula Sm6Al3-1.8Si1.0-2.2 is proposed for the compound studied. The Al and Si atoms are surrounded by Sm atoms forming trigonal prisms, square prisms and antiprisms.

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Periodical:

Solid State Phenomena (Volume 130)

Pages:

101-106

DOI:

https://doi.org/10.4028/www.scientific.net/SSP.130.101

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Online since:

December 2007

Authors:

Stanislaw Pikus, Ihor Melnyk, Roman E. Gladyshevskii

Keywords:

Rietveld Method, Sm-Al-Si Systems, Tb6Al3Si Structure Type

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© 2007 Trans Tech Publications Ltd. All Rights Reserved

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