Preparation and hydrogen-storage properties of 90(Mg-23.5Ni)-10Ta2O5 alloy by melt spinning and oxide addition

被引：0

作者：

Hong, Seong-Hyeon ^{[1
]}

Na, Young-Sang ^{[2
]}

Kwon, SungNam ^{[3
]}

Bae, Jong-Soo ^{[1
]}

Song, MyoungYoup ^{[3
]}

机构：

[1] Powder Materials Research Division, KIMS, Korea Institute of Machinery and Materials, 66 Sangnamdong, Changwon, Kyungnam 641-010, Korea, Republic of

[2] Reliability Evaluation Research Division, KIMS, Korea Institute of Machinery and Materials, 66 Sangnamdong, Changwon, Kyungnam 641-010, Korea, Republic of

[3] Division of Advanced Materials Engineering, Nanomaterial Processing Research Center, Engineering Research Institute, 664-14 1ga Deogjindong Deogjingu Jeonju, Chonbuk, 561-756, Korea, Republic of

来源：

Journal of Alloys and Compounds | 2008年 / 465卷 / 1-2期

关键词：

The 90 wt.% (Mg-23.5 wt.% Ni)-10 wt.% Ta2O5 alloy (designated as (Mg-23.5Ni)-10Ta2O5) was prepared by pulverizing the melt spun and heat treated Mg-23.5 wt.% Ni alloy with the Ta2O5 prepared by spray-conversion in a planetary ball mill. The activated (Mg-23.5Ni)-10Ta2O5 alloy had a higher hydriding rate than the activated Mg-23.5Ni alloy but a similar dehydriding rate. The activated (Mg-23.5Ni)-10Ta2O5 alloy absorbed 4.64 wt.% H for 5 min (i.e; a hydriding rate of 0.93 wt.% H/min) at 573 K; and desorbed 5.02 wt.% H for 5 min (i.e; a dehydriding rate of 1.00 wt.% H/min) at 623 K. The activated (Mg-23.5Ni)-10Ta2O5 alloy exhibited a hydrogen-storage capacity of 6.68 wt.% H. © 2007 Elsevier B.V. All rights reserved;

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页码：512 / 516