Structure and Element Distribution in the UFe10-xA1xSi2 System

Author: Wochowski K.   Burlet P.   Bourée F.   André G.   Suski W.  

Publisher: Springer Publishing Company

ISSN: 1054-9714

Source: Journal of Phase Equilibria, Vol.19, Iss.5, 1998-10, pp. : 423-425

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Abstract

The neutron diffraction studies of powdered alloys with x= 2, 2.5, and 3 gave detailed information on crystallographic data of the compounds. The structure refinement at 300 K for all x= 2, 2.5, and 3 and at 450 K for x= 2 confirmed the ThMn12 type of structure with uranium located in 2(a) positions, iron in 8(f), 8(i), and 8(j) positions, aluminum atoms in 8(i) and 8(j) positions, and Si atoms in 8(f) and 8(j) positions. Impurity phases, FeAl and UFe2Si2 have been detected in all investigated compounds.