Characteristics of a low-cobalt AB(5)-type hydrogen storage alloy obtainedby a gas-atomization processing

Authors
Huang, YX Zhang, H
Citation
Yx. Huang et H. Zhang, Characteristics of a low-cobalt AB(5)-type hydrogen storage alloy obtainedby a gas-atomization processing, J ALLOY COM, 305(1-2), 2000, pp. 76-81
Citations number
12
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
JOURNAL OF ALLOYS AND COMPOUNDS
ISSN journal
09258388 → ACNP
Volume
305
Issue
1-2
Year of publication
2000
Pages
76 - 81
Database
ISI
SICI code
0925-8388(20000606)305:1-2<76:COALAH>2.0.ZU;2-D
Abstract
A low-cobalt ML(NiCoMnAlSnSi)(5) ahoy was prepared by a gas atomization pro cessing. The discharge capacity of the atomized powder was around 150 mAh/g which could be increased to about 200 mAh/g after heat treated at 850 degr ees C for 6 h. A good activation performance was observed for the atomized powder particularly when the particle size was small. The small particle si ze and the presence of minor phases were responsible for the quick activati on. The rate capability of the atomized powder was also improved by heat tr eatment. (C) 2000 Elsevier Science S.A. All rights reserved.