Metastable phases formed in the immiscible Co-Ag system by ion mixing

被引：7

作者：

Li, ZC ^{[1
]}

Cheng, XQ ^{[1
]}

Liu, BX ^{[1
]}

机构：

[1] Tsing Hua Univ, Dept Mat Sci & Engn, Adv Mat Lab, Beijing 100084, Peoples R China

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2001年 / 327卷 / 1-2期

关键词：

transition metal alloys; thin films; solid state reactions; TEM;

D O I：

10.1016/S0925-8388(01)01415-3

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：

Assisted by the interfacial free energy, metastable and fcc phases were formed by room temperature 200 keV xenon ion mixing of nano-sized multilayers in the Co-Ag system being immiscible at equilibrium and characterized by a large positive heat of formation. The formation mechanism of metastable phases is discussed in terms of the far-from-equilibrium process of ion mixing, the role of the interfacial free energy in enhancing alloying capability and the effect of valence electrons. (C) 2001 Elsevier Science BV All rights reserved.

引用

页码：L1 / L3

页数：3

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