Preparation of nanocrystalline metal hydrides by ball milling

被引：17

作者：

Dunlap, RA ^{[1
]}

Cheng, ZH ^{[1
]}

MacKay, GR ^{[1
]}

O'Brien, JW ^{[1
]}

Small, DA ^{[1
]}

机构：

[1] Dalhousie Univ, Dept Phys, Halifax, NS B3H 3J5, Canada

来源：

HYPERFINE INTERACTIONS | 2000年 / 130卷 / 1-4期

基金：

加拿大自然科学与工程研究理事会;

关键词：

D O I：

10.1023/A:1011081618311

中图分类号：

O64 [物理化学（理论化学）、化学物理学]; O56 [分子物理学、原子物理学];

学科分类号：

070203 ; 070304 ; 081704 ; 1406 ;

摘要：

The diffusion of hydrogen into metals during ball milling has been investigated. A system is described that enables the milling to be done under approximately constant hydrogen pressure and allows for the continuous measurement of the quantity of hydrogen absorbed. This method has been used to prepare nanocrystalline hydrides of a variety of early transition metals and alloys. X-ray diffraction studies are used to identify phases present before and after milling and the width of diffraction peaks is used to estimate average grain size. Changes in the microstructure of Fe-containing samples during hydrogen absorption have been investigated by Mossbauer effect. Studies of the influence of milling conditions and the effect of milling time are also presented.

引用

页码：109 / 126

页数：18

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