Partially Pinned Boundaries in White Tin Crystals
- 1 December 1988
- journal article
- Published by IOP Publishing in Japanese Journal of Applied Physics
- Vol. 27 (12R)
- https://doi.org/10.1143/jjap.27.2232
Abstract
The behavior of a dislocation boundary under various applied stresses has been studied by use of the etch hillock technique. The boundary consisted of an array of edge dislocations (the [100](010) slip system) separated with immobile dislocations (the ½{110̄}). Since the motion of edge dislocations was obstructed by immobile dislocations, the boundary as a whole behaved as if it were partially pinned along its length. The boundary bowed between immobile dislocations under a small stress and was released at a certain critical stress. The critical stresses were within a range of about 3 to 20 gw/mm2 for all observed boundaries. Based on a dislocation model already presented, the behaviors of observed boundaries were analyzed by anisotropic elasticity theory and the results were compared with observations.Keywords
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