Structural studies of Laves phases ZrCo(V1-xCrx) with 0≤x≤1 and their hydrides

被引：19

作者：

Soubeyroux, JL ^{[1
]}

Fruchart, D ^{[1
]}

Biris, AS ^{[1
]}

机构：

[1] Univ Grenoble 1, CNRS, Lab Cristallog, F-38042 Grenoble 09, France

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 1999年 / 293卷

关键词：

Laves phases; ZrCo(V1-xCrx); hydrides; neutron diffraction; metal hydrogen systems;

D O I：

10.1016/S0925-8388(99)00305-9

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Laves phases of the series ZrCo(V1-xCrx) with 0 less than or equal to x less than or equal to 1 have been synthesised with the hexagonal C14-type structure. We have analyzed the structure of the alloys by X-ray and neutron diffraction, and determined the sites occupied by transition metals with the V/Cr substitution. The positions of hydrogen atoms in the structure and the occupation of the different interstitial sites of the hydrides have been determined. The effects of the V/Cr substitution have been studied with regard to the phase stability, the maximum hydrogen content and the hydrogen site stability. P-c-T measurements show a good reversibility of the hydrogen uptake. (C) 1999 Elsevier Science S.A. All rights reserved.

引用

页码：88 / 92

页数：5

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