期刊
MATERIALS LETTERS
卷 64, 期 10, 页码 1229-1231出版社
ELSEVIER
DOI: 10.1016/j.matlet.2010.02.061
关键词
Ni-Cu alloy nanoparticles; Arc plasma evaporation; Powder technology; Crystal growth
资金
- NSFC [50731005, 50821001]
- SKPBRC [2010CB731604, 2006CB605201]
- PCSIRT [IRT0650]
- Hebei NSF [E 2009000449]
- Hebei EDF [Z200813]
Nano-scale alloy powders, with the average particle size of 50 nm and face-centered cubic structure, were prepared from NixCu1 (-) (x) (20%<80 at.%) bulk alloys by arc plasma evaporation. Because of the difference in evaporation rates for both nickel and copper in the alloy melt, the composition of the prepared powders is found to be different from that of raw bulk alloys in most of the cases. Thus the composition relationship between the powders and raw alloys are constructed in the present work. In order to control the size distribution of the powders, the aggregation and growth process of the nanoparticles are analyzed. (C) 2010 Elsevier B.V. All rights reserved.
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