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Structural Changes of a σ = 51 Tilt Boundary in Germanium During High Temperature Creep

Published online by Cambridge University Press:  25 February 2011

W. Skrotski ,
H. Wendt ,
C. B. Carter  and
D. L. Kohlstedt
W. Skrotski
Affiliation:
Department of Materials Science and Engineering Cornell University, Ithaca, NY 14853
H. Wendt
Affiliation:
Department of Materials Science and Engineering Cornell University, Ithaca, NY 14853
C. B. Carter
Affiliation:
Department of Materials Science and Engineering Cornell University, Ithaca, NY 14853
D. L. Kohlstedt
Affiliation:
Department of Materials Science and Engineering Cornell University, Ithaca, NY 14853
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Abstract

The incorporation of lattice dislocations into a 16° [011] tilt bound-ary in Ge bicrystals has been analyzed with high-resolution and conventional transmission electron microscopy techniques. Dislocations in subgrain boundaries produced during high-temperature creep, knit into the high-angle grain boundary. As these lattice dislocations are absorbed, the structure changes along the grain boundary from one subgrain to the next. Analysis of the boundary structure by lattice-fringe imaging demonstrates that the secon-dary dislocations which accomodate the deviation from the coincidence orien-tation do not have primitive DSC Burgers vectors.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 41: Symposium K – Advanced Photon and Particle Techniques for the Characterization of Defects in Solids , 1984 , 261
Copyright
Copyright © Materials Research Society 1985

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References

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