Why do grain boundaries exhibit finite facet lengths? -: art. no. 246102

被引：35

作者：

Hamilton, JC ^{[1
]}

Siegel, DJ ^{[1
]}

Daruka, I ^{[1
]}

Léonard, F ^{[1
]}

机构：

[1] Sandia Natl Labs, Livermore, CA 94551 USA

来源：

PHYSICAL REVIEW LETTERS | 2003年 / 90卷 / 24期

关键词：

D O I：

10.1103/PhysRevLett.90.246102

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Uniform finite facets are frequently observed at grain boundaries (GBs) and are usually attributed to equilibrium stabilization by GB stress. We report calculations for an aluminum twin GB using density functional theory, the embedded-atom method, and continuum elasticity theory. These methods show that GB stress is much too small to stabilize finite facets, suggesting that the usual explanation is incorrect.

引用

页数：4

共 50 条

[1] Finite-size effects on the structure of grain boundaries -: art. no. 156101
Marquis, EA
Hamilton, JC
Medlin, DL
Léonard, F
PHYSICAL REVIEW LETTERS, 2004, 93 (15) : 156101 - 1
[2] Induced paramagnetic states by localized π loops in grain boundaries -: art. no. 052505
Rotoli, G
PHYSICAL REVIEW B, 2003, 68 (05)
[3] Do liquids exhibit local fivefold symmetry at interfaces? -: art. no. 021501
Heni, M
Löwen, H
PHYSICAL REVIEW E, 2002, 65 (02): : 1 - 021501
[4] Segregated light elements at grain boundaries in niobium and molybdenum -: art. no. 224101
Janisch, R
Elsässer, C
PHYSICAL REVIEW B, 2003, 67 (22):
[5] Chevron defect at the intersection of grain boundaries with free surfaces in Au -: art. no. 085502
Radetic, T
Lançon, F
Dahmen, U
PHYSICAL REVIEW LETTERS, 2002, 89 (08) : 085502/1 - 085502/4
[6] Comment on "Do earthquakes exhibit self-organized criticality?" -: art. no. 249801
Woodard, R
Newman, DE
Sánchez, R
Carreras, BA
PHYSICAL REVIEW LETTERS, 2004, 93 (24)
[7] Transformations of faceted grain boundaries in high-Tc superconductors -: art. no. 132506
Bobylev, SV
Ovid'ko, IA
PHYSICAL REVIEW B, 2003, 67 (13):
[8] Why illumination engineering? - art. no. 667002
Koshel, R. John
NONIMAGING OPTICS AND EFFICIENT ILLUMINATION SYSTEMS IV, 2007, 6670 : 67002 - 67002
[9] Dielectric properties of twist grain boundary phases:: Influence of the anchoring and the distance between grain boundaries -: art. no. 011701
Ismaïli, M
Bougrioua, F
Isaert, N
Legrand, C
Nguyen, HT
PHYSICAL REVIEW E, 2002, 65 (01):
[10] Fluctuations of an atomic ledge bordering a crystalline facet -: art. no. 035102
Ferrari, PL
Prähofer, M
Spohn, H
PHYSICAL REVIEW E, 2004, 69 (03): : 035102 - 1

← 1 2 3 4 5 →