4.7 Article

Structural determination of AMgNi4 (where A=Ca, La, Ce, Pr, Nd and Y) in the AuBe5 type structure

Journal

JOURNAL OF ALLOYS AND COMPOUNDS
Volume 345, Issue 1-2, Pages 140-143

Publisher

ELSEVIER SCIENCE SA
DOI: 10.1016/S0925-8388(02)00323-7

Keywords

transition metal compounds; rare earth compounds; hydrogen absorbing materials; crystal structure; X-ray diffraction

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A number of new ternary magnesium based alloys AMgNi(4) (where A = Ca, La, Ce, Pr, Nd, and Y) have been synthesized by direct combination of the elements in the atomic ratio A:Mg:Ni = 1:1:4. The crystal structures were determined by Guinier-Hagg X-ray powder diffraction. The compounds have a cubic SnMgCu4 (AuBe5 type) structure, which is related to the (C-15) MgCu2 structure. All interatomic distances indicate metallic-type bonding. (C) 2002 Elsevier Science B.V. All rights reserved.

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