Solid-Liquid Interfacial Premelting

被引：57

作者：

Yang, Yang ^{[1
]}

Asta, Mark ^{[2
]}

Laird, Brian B. ^{[1
]}

机构：

[1] Univ Kansas, Dept Chem, Lawrence, KS 66045 USA

[2] Univ Calif Berkeley, Dept Mat Sci & Engn, Berkeley, CA 94720 USA

来源：

PHYSICAL REVIEW LETTERS | 2013年 / 110卷 / 09期

基金：

美国国家科学基金会;

关键词：

1ST-ORDER BULK TRANSITIONS; PB INCLUSIONS; GRAIN-BOUNDARIES; PHASE-TRANSITION; PB(110) SURFACE; AL; SIMULATION; MODEL; ICE; THERMODYNAMICS;

D O I：

10.1103/PhysRevLett.110.096102

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report the observation of a premelting transition at chemically sharp solid-liquid interfaces using molecular-dynamics simulations. The transition is observed in the solid-Al-liquid-Pb system and involves the formation of a liquid interfacial film of Al with a width that grows logarithmically as the bulk melting temperature is approached from below, consistent with current theories of premelting. The premelting behavior leads to a sharp change in the temperature dependence of the diffusion coefficient in the interfacial region and could have important consequences for phenomena such as particle coalescence and shape equilibration, which are governed by interfacial kinetic processes. DOI: 10.1103/PhysRevLett.110.096102

引用

页数：5

共 45 条

[1] Molecular dynamics study of melting of the hcp metal Mg [J].