HRTEM investigation of a Sigma=9 [0 1-(1)over-bar]/(122) symmetric tilt grain boundary in Cu

Authors
Hu, JR Chang, SC Chen, FR Kai, JJ
Citation
Jr. Hu et al., HRTEM investigation of a Sigma=9 [0 1-(1)over-bar]/(122) symmetric tilt grain boundary in Cu, SCR MATER, 45(4), 2001, pp. 463-469
Citations number
21
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science","Material Science & Engineering
Journal title
SCRIPTA MATERIALIA
ISSN journal
13596462 → ACNP
Volume
45
Issue
4
Year of publication
2001
Pages
463 - 469
Database
ISI
SICI code
1359-6462(20010831)45:4<463:HIOAS[>2.0.ZU;2-6
Abstract
A mirror-glide symmetric structure is observed at the Sigma = 9 [01 (1) ove r bar]/(122) symmetric tilt grain boundary in Cu. No mirror symmetric unit is found which is consistent with the fact that the mirror symmetric unit i s relatively higher energy in low stacking fault energy, or higher bulk mod ulus, fcc metals. The boundary width is estimated to be about 0.1241 urn wh ich is about twice of {224} lattice spacing. (C) 2001 Acta Materialia Inc. Published by Elsevier Science Ltd. All rights reserved.