Release Time:2019-03-09  Hits:

Indexed by: Journal Article

Date of Publication: 2013-09-01

Journal: SCRIPTA MATERIALIA

Included Journals: Scopus、EI、SCIE

Volume: 69

Issue: 6

Page Number: 457-460

ISSN: 1359-6462

Key Words: Molecular dynamics; Nanotwinned structure; CdTe; Nanoindentation; Edge dislocation

Abstract: Deformations of cadmium telluride (CdTe) under nanoindentation were simulated by molecular dynamics. CdTe slides along the {1 1 1} planes under nanoindentation through edge dislocations. During loading, the sliding of CdTe was limited at twin boundaries, inducing the pile-up phenomenon. When dislocations transferred across the twin boundary, a sessile dislocation and steps formed. The coherence effect of both twin boundaries locked the dislocations at the twin boundary effectively, indicating a better hardening effect. (C) 2013 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.