Calculation of Interfacial Dislocation Structures: Revisit to the O-lattice Theory
Calculation of Interfacial Dislocation Structures: Revisit to the O-lattice Theory
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界面位错结构的计算:重新审视 O 晶格理论
DOI:
10.1007/s11661-013-1689-8
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发表时间:
2013-03
影响因子:
2.8
通讯作者:
Zhang, Wen-Zheng
中科院分区:
文献类型:
--
作者:
Zhang, Wen-Zheng
This article clarifies a geometric method for calculating interfacial dislocation structures, to provide virtually unique initial dislocation structures for further relaxation. Ambiguities in specifying the misfit deformation and Burgers vectors are effectively eliminated. The physical basis for the method is a hypothesized periodicity correspondence between the structure within a good matching site (GMS) cluster (GMSC) and the conserved structure between dislocations. It is proposed to attribute each interfacial dislocation with a couple of correlated Burgers vectors. A set of Burgers vectors from each real lattice is identified according to the translation symmetry in a GMSC. A GMSC principle is suggested to guide the formulation of the deformation matrixA. The O-lattice theory is applied to quantify the distribution of GMSCs at the O-elements and poor matching regions at the O-cell walls. Configuration of dislocations in a general semicoherent interface is determined according to the effective O-cell wall traces in the interface. The relationship between GMS/GMSC and coincidence-site-lattice/O-lattice is elucidated for describing secondary dislocations. Several controversial issues on dislocation descriptions are discussed, including the decomposition of a net Burgers vector content, the influence of reference lattice, and the relationship between secondary dislocations and atomic steps.
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影响因子:
1.6
作者:
Wen-Zheng Zhang;G. Purdy
通讯作者:
Wen-Zheng Zhang;G. Purdy
DOI:
10.1007/bf02649037
发表时间:
1994-09-01
影响因子:
2.8
作者:
SHIFLET, GJ;VANDERMERWE, JH
通讯作者:
VANDERMERWE, JH
DOI:
10.1146/annurev.ms.03.080173.001551
发表时间:
1973-08
期刊:
Annual Review of Materials Science
影响因子:
--
作者:
G. Meyrick;G. W. Powell
通讯作者:
G. Meyrick;G. W. Powell
DOI:
10.1098/rsta.1983.0020
发表时间:
1983-03
期刊:
Philosophical Transactions of the Royal Society of London. Series A, Mathematical and Physical Sciences
影响因子:
--
作者:
A. Sutton;V. Vítek
通讯作者:
A. Sutton;V. Vítek
影响因子:
1.6
作者:
K. Knowles
通讯作者:
K. Knowles