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On basal slip and basal twinning in sapphire ({alpha}-Al{sub 2}O{sub 3}). 2: A new model of basal twinning

Journal Article · · Acta Materialia
; ; ; ; ;  [1]
  1. Case Western Reserve Univ., Cleveland, OH (United States). Dept. of Materials Science and Engineering

Based on a new model for basal slip in sapphire developed in Part 1 of this series of papers, the formation of a basal twin is considered. It is shown that deformation twinning is a natural outgrowth of the present model of slip when the material is deformed in a particular regime of temperature and stress. The model is based on the glide of a leading partial dislocation on a basal slip plane and double-cross-slip to the next-but-one slip plane. The model predicts a Type-II twin.

DOE Contract Number:
FG02-93ER45496
OSTI ID:
247966
Journal Information:
Acta Materialia, Journal Name: Acta Materialia Journal Issue: 5 Vol. 44; ISSN XZ504Y; ISSN 1359-6454
Country of Publication:
United States
Language:
English

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