Amorphous and nanocrystalline sputtered Mg-Cu thin films

被引:34
作者
Chou, H. S. [1 ]
Huang, J. C. [1 ]
Lai, Y. H. [1 ]
Chang, L. W. [1 ]
Du, X. H. [1 ,2 ]
Chu, J. P. [3 ]
Nieh, T. G. [4 ]
机构
[1] Natl Sun Yat Sen Univ, Inst Mat Sci & Engn, Ctr Nanosci & Nanotechnol, Kaohsiung 804, Taiwan
[2] Shenyang Inst Aeronaut Engn, Dept Mat Engn, Shenyang 110034, Peoples R China
[3] Natl Taiwan Univ Sci & Technol, Dept Polymer Engn, Taipei 106, Taiwan
[4] Univ Tennessee, Dept Mat Sci & Engn, Knoxville, TN 37996 USA
关键词
Thin films; Amorphous materials; Scanning and transmission electron microscopy; Intermetallics; MECHANICAL-PROPERTIES; METALLIC GLASSES; NANOINDENTATION; BEHAVIOR; CRYSTALLIZATION; DEFORMATION; INDENTATION; ALLOYS; FLOW; AL;
D O I
10.1016/j.jallcom.2008.07.187
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
Binary Mg-Cu amorphous alloys were first fabricated in 1980s via liquid quenching. In this study, the Mg1-xCux (x varying from 38 at.% to 82 at.%) partially amorphous thin films are prepared via co-sputtering. Upon thermal annealing, the Mg2Cu or MgCu2 nanocrystalline phases are induced in the Mg-rich or Cu-rich thin films, respectively. Due to the presence of fine nanocrystalline Mg2Cu or MgCu2 particles in the Mg-Cu amorphous matrix, the as-sputtered thin films show satisfactory Young's modulus similar to 100 GPa and hardness similar to 4 GPa. (C) 2008 Elsevier B.V. All rights reserved.
引用
收藏
页码:341 / 345
页数:5
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