Solid/liquid two-phase structures in isolated nanometer-sized alloy particles

被引：20

作者：

Lee, JG ^{[1
]}

Mori, H ^{[1
]}

机构：

[1] Osaka Univ, Res Ctr Ultra High Voltage Electron Microscopy, Osaka 5650871, Japan

来源：

PHYSICAL REVIEW B | 2004年 / 70卷 / 14期

关键词：

D O I：

10.1103/PhysRevB.70.144105

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Solid/liquid two-phase structures in isolated nanometer-sized alloy particles have been studied by transmission electron microscopy. The microstructure developed in the crystal+liquid two-phase region was different between particles in the Au-Sn and Bi-Sn systems; namely, a core (crystal)-shell (liquid) structure appeared in the former system, whereas a simple two-phase structure with a planar interface separating the crystalline and liquid phases in the latter system. The reason for the difference between the two alloy systems is discussed in terms of the relative contributions of the surface energy of solid, the surface energy of liquid, and the inferface energy to the total Gibbs free energy of a particle.

引用

页码：144105 / 1

页数：5

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