Amorphization and fracture in silicon diselenide nanowires: A molecular dynamics study

被引：33

作者：

Li, W ^{[1
]}

Kalia, RK ^{[1
]}

Vashishta, P ^{[1
]}

机构：

[1] LOUISIANA STATE UNIV,DEPT COMP SCI,BATON ROUGE,LA 70803

来源：

PHYSICAL REVIEW LETTERS | 1996年 / 77卷 / 11期

关键词：

D O I：

10.1103/PhysRevLett.77.2241

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Dynamics of amorphization and fracture in SiSe2 nanowires are studied using the molecular-dynamics method. We find that fracture is initiated in an amorphous region at the nanowire surface. Local amorphization propagates across the nanowire while multiple cracks start at the boundaries of the amorphous region. Results for the time evolution of amorphization, crack propagation, and fracture are discussed.

引用

收藏

页码：2241 / 2244

页数：4

相关论文

共 39 条

[1] INSTABILITY DYNAMICS OF FRACTURE - A COMPUTER-SIMULATION INVESTIGATION [J].

ABRAHAM, FF ;

BRODBECK, D ;

RAFEY, RA ;

RUDGE, WE .

PHYSICAL REVIEW LETTERS, 1994, 73 (02) :272-275

[2] CRYSTALLINE FRAGMENTS IN GLASSES [J].

ANTONIO, GA ;

KALIA, RK ;

NAKANO, A ;

VASHISHTA, P .

PHYSICAL REVIEW B, 1992, 45 (13) :7455-7458

[3] SIMULATION OF NANOMETER-SCALE DEFORMATION OF METALLIC AND CERAMIC SURFACES [J].

BELAK, J ;

BOERCKER, DB ;

STOWERS, IF .

MRS BULLETIN, 1993, 18 (05) :55-60

[4] ELASTIC PROPERTIES OF SIXSE1-X GLASSES [J].

BHADRA, R ;

SUSMAN, S ;

VOLIN, KJ ;

GRIMSDITCH, M .

PHYSICAL REVIEW B, 1989, 39 (02) :1378-1380

[5] BRITTLE-DUCTILE TRANSITION IN INTRINSIC FRACTURE-BEHAVIOR OF CRYSTALS [J].

CHEUNG, KS ;

YIP, S .

PHYSICAL REVIEW LETTERS, 1990, 65 (22) :2804-2807

[6]

DIENES GJ, 1983, ATOMISTICS FRACTURE, P671

[7] COMPUTER-MODELING STUDIES OF 4-2 COORDINATED GLASSES [J].

GLADDEN, LF .

JOURNAL OF NON-CRYSTALLINE SOLIDS, 1990, 123 (1-3) :22-25

[8] SOME ASPECTS OF FORCES AND FIELDS IN ATOMIC MODELS OF CRACK TIPS [J].

HOAGLAND, RG ;

DAW, MS ;

HIRTH, JP .

JOURNAL OF MATERIALS RESEARCH, 1991, 6 (12) :2565-2577

[9] FRACTURE SIMULATIONS USING LARGE-SCALE MOLECULAR-DYNAMICS [J].

HOLIAN, BL ;

RAVELO, R .

PHYSICAL REVIEW B, 1995, 51 (17) :11275-11288

[10] STRUCTURAL TRANSFORMATION, INTERMEDIATE-RANGE ORDER, AND DYNAMICAL BEHAVIOR OF SIO2 GLASS AT HIGH-PRESSURES [J].

JIN, W ;

KALIA, RK ;

VASHISHTA, P ;

RINO, JP .

PHYSICAL REVIEW LETTERS, 1993, 71 (19) :3146-3149

← 1 2 3 4 →