GRAIN-BOUNDARY MELTING - A MONTE-CARLO STUDY

被引：33

作者：

BESOLD, G ^{[1
]}

MOURITSEN, OG ^{[1
]}

机构：

[1] TECH UNIV DENMARK, DEPT PHYS CHEM, DK-2800 LYNGBY, DENMARK

来源：

PHYSICAL REVIEW B | 1994年 / 50卷 / 10期

关键词：

D O I：

10.1103/PhysRevB.50.6573

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Grain-boundary melting in a lattice-gas model of a bicrystal is studied by Monte Carlo simulation using the grand canonical ensemble. Well below the bulk melting temperature T(m), a disordered liquidlike layer gradually emerges at the grain boundary. Complete interfacial wetting can be observed when the temperature approaches T(m) from below. Monte Carlo data over an extended temperature range indicate a logarithmic divergence w(T) approximately - ln(T(m)-T) of the width of the disordered layer w, in agreement with mean-field theory.

引用

页码：6573 / 6576

页数：4

共 31 条

[1]

[Anonymous], 1988, PHASE TRANSITIONS CR

[2]

[Anonymous], 1986, FLUID INTERFACIAL PH

[3]

BESOLD G, UNPUB

[4] THERMODYNAMIC CRITERIA FOR GRAIN-BOUNDARY MELTING - A MOLECULAR-DYNAMICS STUDY [J].

BROUGHTON, JQ ;

GILMER, GH .

PHYSICAL REVIEW LETTERS, 1986, 56 (25) :2692-2695

[5] EVIDENCE FOR GRAIN-BOUNDARY PHASE-TRANSITION IN A 2D BICRYSTAL [J].

CARRION, F ;

KALONJI, G ;

YIP, S .

SCRIPTA METALLURGICA, 1983, 17 (07) :915-918

[6] WETTING AND SURFACE MELTING - CAPILLARY FLUCTUATIONS VS LAYERWISE SHORT-RANGE ORDER [J].

CHERNOV, AA ;

MIKHEEV, LV .

PHYSICA A, 1989, 157 (02) :1042-1058

[7] WETTING OF SOLID-SURFACES BY A STRUCTURED SIMPLE LIQUID - EFFECT OF FLUCTUATIONS [J].

CHERNOV, AA ;

MIKHEEV, LV .

PHYSICAL REVIEW LETTERS, 1988, 60 (24) :2488-2491

[8] HIGH-ANGLE GRAIN-BOUNDARY PREMELTING TRANSITION - A MOLECULAR-DYNAMICS STUDY [J].

CICCOTTI, G ;

GUILLOPE, M ;

PONTIKIS, V .

PHYSICAL REVIEW B, 1983, 27 (09) :5576-5585

[9] MOLECULAR-DYNAMICS APPROACH TO GRAIN-BOUNDARY STRUCTURE AND MIGRATION [J].

COTTERILL, RM ;

LEFFERS, T ;

LILHOLT, H .

PHILOSOPHICAL MAGAZINE, 1974, 30 (02) :265-275

[10] SURFACE MELTING [J].

DASH, JG .

CONTEMPORARY PHYSICS, 1989, 30 (02) :89-100

← 1 2 3 4 →