SCREW DISLOCATION IN SPHERICAL-PARTICLE

被引：9

作者：

POLONSKY, IA ^{[1
]}

ROMANOV, AE ^{[1
]}

GRYAZNOV, VG ^{[1
]}

KAPRELOV, AM ^{[1
]}

机构：

[1] ACAD SCI USSR,INST HIGH PRESSURE PHYS,TROITSK 142092,USSR

来源：

CZECHOSLOVAK JOURNAL OF PHYSICS | 1991年 / 41卷 / 12期

关键词：

D O I：

10.1007/BF01613543

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The elastic fields generated by a straight-line screw dislocation axially arranged in a spherical particle have been calculated and analyzed. Some features of the distribution of elastic fields in this case and in the case of a screw dislocation lying along the axis of a cylindrical whisker are similar. The elastic energies per unit dislocation length differ slightly in the two cases. This corroborates the validity of application of some of the results obtained for screw dislocations in elastic cylinders to the study of properties of screw dislocations in equiaxed particles.

引用

页码：1249 / 1255

页数：7

共 18 条

[1] STRUCTURAL FLUCTUATIONS IN SMALL PARTICLES [J].

DUNDURS, J ;

MARKS, LD ;

AJAYAN, PM .

PHILOSOPHICAL MAGAZINE A-PHYSICS OF CONDENSED MATTER STRUCTURE DEFECTS AND MECHANICAL PROPERTIES, 1988, 57 (04) :605-620

[2]

DUNDURS J, 1969, MATH THEORY DISLOCAT, P70

[3]

ESHELBY J, 1979, DISLOCATIONS SOLIDS, P167

[4]

FRIEDEL J, 1976, ANN PHYS-PARIS, V1, P257

[5] NANOCRYSTALLINE MATERIALS [J].

BIRRINGER, R .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 1989, 117 :33-43

[6] SIZE EFFECT OF DISLOCATION STABILITY IN SMALL PARTICLES AND MICROCRYSTALLITES [J].

GRYAZNOV, VG ;

KAPRELOV, AM ;

ROMANOV, AE .

SCRIPTA METALLURGICA, 1989, 23 (08) :1443-1448

[7]

GSAVAZZA SD, 1974, INT J ENG SCI, V12, P1025

[8]

Hirth J. P., 1983, THEORY DISLOCATIONS

[9] ELASTIC INTERACTION BETWEEN WEDGE DISCLINATIONS [J].

KROUPA, F ;

LEJCEK, L .

PHYSICA STATUS SOLIDI B-BASIC RESEARCH, 1972, 51 (02) :K121-&

[10] SCREW DISLOCATION IN A NONHOMOGENEOUS MEDIUM [J].

KROUPA, F .

CZECHOSLOVAK JOURNAL OF PHYSICS, 1977, 27 (12) :1378-1384

← 1 2 →