II. Dynamic and crystallographic analysis
- 1 February 1987
- journal article
- Published by Taylor & Francis in Philosophical Magazine A
- Vol. 55 (2) , 165-181
- https://doi.org/10.1080/01418618708209843
Abstract
Dislocation transmission through a (122), ∑ = 9 boundary in Ge or Si is first studied from the crystallographic point of view. Grain-boundary structure alterations induced by transmission reactions suggested by experimental observations are investigated. The Burgers vectors of extrinsic grain-boundary dislocations and their associated steps are determined. A possible transmission process, which accounts for lattice dislocation dissociation, i.e. transmission of the leading Shockley partial without constriction, is discussed. The strain transmission is also examined using calculations of internal shear stresses exerted by dislocation pileups, in one crystal, at the interface, on all the second crystal's slip systems. Interpretation of the observed transmission reactions is attempted by combining the crystallographic and the dynamic criteria.Keywords
This publication has 20 references indexed in Scilit:
- Dislocation transmission through ∑ = 9 symmetrical tilt boundaries in silicon and germaniumPhilosophical Magazine A, 1987
- Study of ∊ = 5 (130) symmetrical tilt boundary structure in germaniumPhilosophical Magazine A, 1985
- Atomic structure of [011] and [001] near-coincident tilt boundaries in germanium and siliconPhilosophical Magazine A, 1984
- Interactions between lattice partial dislocations and grain boundariesMaterials Science and Engineering, 1984
- Step heights associated with grain boundary dislocations in cubic crystalsActa Metallurgica, 1982
- Representation of bicrystal invariant translationsActa Crystallographica Section A, 1981
- The effects on grain-boundary processes of the steps in the boundary plane associated with the cores of grain-boundary dislocationsActa Crystallographica Section A, 1980
- Lattice imaging of a grain boundary in crystalline germaniumPhilosophical Magazine, 1977
- Pile-up of dissociated dislocations and the strength-grain size relationshipPhilosophical Magazine, 1969
- Models of grain boundaries in the diamond lattice I. Tilt about I 10Physica, 1959