Three-dimensional numerical simulation of interacting dislocations in a strained epitaxial surface layer

R. V. Kukta; L. B. Freund

Three-dimensional numerical simulation of interacting dislocations in a strained epitaxial surface layer

R. V. Kukta
, L. B. Freund

Mechanical Engineering

Stony Brook University

California Institute of Technology

Research output: Contribution to journal › Conference article › peer-review

2 Scopus citations

Abstract

In the context of elastic dislocation theory, the glide of arbitrarily shaped dislocations near a free surface is simulated numerically. The simulation is made possible by utilizing a compact line-integral representation of the elastic field produced by a piecewise planar dislocation loop near a free surface. The interaction between a threading dislocation and a misfit dislocation in its path is simulated and the blocking effect is shown to be much more significant than found in simulations which neglect free surface effects.

Original language	English
Pages (from-to)	99-105
Number of pages	7
Journal	Materials Research Society Symposium - Proceedings
Volume	538
State	Published - 1999
Event	Proceedings of the 1998 MRS Fall Meeting - The Symposium 'Advanced Catalytic Materials-1998' - Boston, MA, USA Duration: Nov 30 1998 → Dec 3 1998

Cite this

@article{d86335b98a0b46d68e2d649794ff7ea9,

title = "Three-dimensional numerical simulation of interacting dislocations in a strained epitaxial surface layer",

abstract = "In the context of elastic dislocation theory, the glide of arbitrarily shaped dislocations near a free surface is simulated numerically. The simulation is made possible by utilizing a compact line-integral representation of the elastic field produced by a piecewise planar dislocation loop near a free surface. The interaction between a threading dislocation and a misfit dislocation in its path is simulated and the blocking effect is shown to be much more significant than found in simulations which neglect free surface effects.",

author = "Kukta, \{R. V.\} and Freund, \{L. B.\}",

year = "1999",

language = "English",

volume = "538",

pages = "99--105",

journal = "Materials Research Society Symposium - Proceedings",

issn = "0272-9172",

note = "Proceedings of the 1998 MRS Fall Meeting - The Symposium 'Advanced Catalytic Materials-1998' ; Conference date: 30-11-1998 Through 03-12-1998",

}

TY - JOUR

T1 - Three-dimensional numerical simulation of interacting dislocations in a strained epitaxial surface layer

AU - Kukta, R. V.

AU - Freund, L. B.

PY - 1999

Y1 - 1999

N2 - In the context of elastic dislocation theory, the glide of arbitrarily shaped dislocations near a free surface is simulated numerically. The simulation is made possible by utilizing a compact line-integral representation of the elastic field produced by a piecewise planar dislocation loop near a free surface. The interaction between a threading dislocation and a misfit dislocation in its path is simulated and the blocking effect is shown to be much more significant than found in simulations which neglect free surface effects.

AB - In the context of elastic dislocation theory, the glide of arbitrarily shaped dislocations near a free surface is simulated numerically. The simulation is made possible by utilizing a compact line-integral representation of the elastic field produced by a piecewise planar dislocation loop near a free surface. The interaction between a threading dislocation and a misfit dislocation in its path is simulated and the blocking effect is shown to be much more significant than found in simulations which neglect free surface effects.

UR - https://www.scopus.com/pages/publications/0032591811

M3 - Conference article

SN - 0272-9172

VL - 538

SP - 99

EP - 105

JO - Materials Research Society Symposium - Proceedings

JF - Materials Research Society Symposium - Proceedings

T2 - Proceedings of the 1998 MRS Fall Meeting - The Symposium 'Advanced Catalytic Materials-1998'

Y2 - 30 November 1998 through 3 December 1998

ER -

Three-dimensional numerical simulation of interacting dislocations in a strained epitaxial surface layer

Abstract

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