Formation of non-equilibrium alloy phases in Cr-Cu multilayered films by ion mixing

被引：2
|
作者：
Lin, C [1 ]
Yang, GW [1 ]
Li, ZF [1 ]
Liu, BX [1 ]
机构：
[1] Tsing Hua Univ, Dept Mat Sci & Engn, Beijing 100084, Peoples R China
来源：
MATERIALS LETTERS | 2000年 / 42卷 / 1-2期
基金：
中国国家自然科学基金;
关键词：
non-equilibrium alloy phase; ion mixing; Cr-Cu alloy; multilayered films;
D O I：
10.1016/S0167-577X(99)00150-0
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The Cr-Cu system is characterized by its positive heat of formation, which leads to a very limited solid solubility between the constituent metals. By ion irradiation of alternately deposited Cr-Cu multilayered films, however, non-equilibrium amorphous, face-centered-cubic (fcc) crystalline phase and Cr-based supersaturated solid solution were formed at the Cr-rich side. The fee phase was deduced to contain about 62 at.% of Cr and its lattice constant was determined to be 0.335 nm. The formation of the fee phase was through a bcc-hcp-fcc transition mechanism from the Cr matrix. (C) 2000 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：7 / 11
页数：5
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