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The Structure of Dislocations in Low-Angle Grain Boundaries in the Diamond Cubic Lattice

Published online by Cambridge University Press:  15 February 2011

C.B. Carter
C.B. Carter*
Affiliation:
Dept. of Materials Science & Engineering, Cornell University, Ithaca, NY 14853
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Abstract

Dislocations in low-angle tilt boundaries exhibit a wide variety of Burgers vector including a/2<112> a<001> and a<111>. The dislocations are usually dissociated: Shohkley, stair-rod and Frank partial dislocations may each be formed together with associated intrinsic and extrinsic stackingfaults. Dislocations in low-angle {111} twist boundaries are usually assumed to dissociated by a glide mechanism to give two types of extended nodes, known as P–type and K–type, which contain intrinsic and extrinsic stacking-faults respectively. It is shown that dissociation by climb actually occurs for both types of grain boundary.

Information

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 5: Symposium B – Grain Boundaries in Semiconductors , 1981 , 33
Copyright
Copyright © Materials Research Society 1982

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References

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