INTERSTITIAL SITES IN THE HYDROGEN-INACTIVE INTERMETALLIC COMPOUNDS ZRPD2 AND UPD3

被引：8

作者：

JACOB, I

BEERI, O

ELISH, E

机构：

[1] BEN GURION UNIV NEGEV,DEPT MAT ENGN,IL-84105 BEER SHEVA,ISRAEL

[2] BEN GURION UNIV NEGEV,DEPT CHEM ENGN,IL-84105 BEER SHEVA,ISRAEL

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 1995年 / 221卷 / 221期

关键词：

INTERMETALLIC LATTICES; HYDROGEN; BONDING STRENGTHS;

D O I：

10.1016/0925-8388(94)01452-3

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：

The possible interstitial sites for hydrogen occupation in the intermetallic lattices of ZrPd2 (MoSi2 tetragonal structure type) and UPd3 (Ni3Ti hexagonal structure type) were identified by their Wyckoff notation and characterized by the metal atoms on the polyhedron vertices. Interstitial hole sizes and intersite distances were also calculated utilizing lattice constants and estimated atomic metal radii. It is concluded that hydrogen absorption is not restricted by geometrical factors imposed by empirical and theoretical criteria for the minimum hole size and intersite distance. The hydrogen inertness of the ZrPd2 and UPd3 compounds is discussed from the point of view of their large stabilities and the recently found correlations between bonding strengths and hydrogen absorption.

引用

页码：129 / 132

页数：4

共 25 条

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