edge dislocation

edge dislocation

[′ej ‚dis·lō‚kā·shən]
(crystallography)
A dislocation which may be regarded as the result of inserting an extra plane of atoms, terminating along the line of the dislocation. Also known as Taylor-Orowan dislocation.
References in periodicals archive ?
According to Reed-Hill [14], "An edge dislocation is able of moving either by slip on its slip plane or by climb in a way perpendicular to its slip plane.
The edge dislocation is analyzed in sections [section]9-3, [section]9-5 and [section]15-2 of [7].
(i) Edge dislocation b//OX: the field [u.sup.rel] is derived from two stress potentials [[phi].sub.1] and [[phi].sub.2] mentioned in [14] but calculated at the limit of an infinite thickness:
Model Nucleation point of Identified dislocation emission deformation mechanism A Edge dislocation Pyramidal slip B Grain boundary Twin C Grain boundary Twin D Grain boundary Twin E Grain boundary Twin f Grain boundary Twin & Basal slip G Grain boundary Basal slip H Grain boundary Basal slip I Grain boundary Basal slip J In grains Prismatic slip K Grain boundary Prismatic slip L Grain boundary Prismatic slip M Grain boundary Prismatic slip
During the growth, due to possible dynamics cause and local heating, slight edge dislocation and little curve would be formed.
Bai, "Experimental examination of displacement and strain fields in an edge dislocation core," Acta Materialia, vol.
The high tensile load produces plastic flow due to movement of edge dislocation with Cottrell atmosphere such that the edge dislocation separates from the enclosed interstitial solutes.
Some paper subjects are defect analysis in semiconductor materials based on p-n junction diode characteristics, electronic structure and doping effects of Ni and Co on a kink in the edge dislocation of BCC iron, peculiarities of discontinuous precipitation in the Pb-Sn alloy, and local vibrational modes of Zn-H-P in GaP, InP, and ZnTe.
The binding energy of a boron atom to an edge dislocation is considered to be large (~0.7 eV) and is comparable to that calculated for carbon in iron (~1.0 eV) [14].
Weinberger simulated the Peierls stress of an edge dislocation in molybdenum with modified Finnis-Sinclair potential to check the thickness dependence of the Peierls stress [11].
There are two types of dislocations: an edge dislocation for which [b.sup.[mu]][[xi].sup.[mu]] = 0 and a screw dislocation which can be right-handed for which [b.sup.[mu]][[xi].sup.[mu]] = b, or left-handed for which [b.sup.[mu]][[xi].sup.[mu]] = -b, where b is the magnitude of the Burgers vector.