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Characterization of {l_brace} 11-bar 01 {r_brace} twin dislocation structures in evaporated titanium thin films by HREM

Technical Report:

Abstract

The structure of {l_brace}11-bar 01{r_brace} twin dislocations in Ti films evaporated on NaCl substrates at 250 deg C has been examined and characterised by high-resolution electron microscopy. The results have revealed that a twin dislocation structure with step height 4 x d(K{sub 1}), where d(K{sub 1}) is the spacing of the {l_brace}11-bar 01{r_brace} twin planes, actually dissociates into two {l_brace}11-bar 01{r_brace} twin dislocations with step heights of d(K{sub 1}) and 3 x d(K{sub 1}). The twin dislocation with a step height of 3 x d(K{sub 1}) contains an edge dislocation in the core while that with a step height of d(K{sub 1}) is a simple classical twin dislocation structure. Twin dislocations with step height of 2 x d(K{sub 1}), including an edge dislocation in the core, also occur. The atomic-scale core structures of {l_brace}11-bar 01{r_brace} twin dislocations may be derived by analysis of the high-resolution images. The relative mobilities of the three types of twin dislocations is then discussed. 17 refs., 4 figs.
Authors:
Kasukabe, Y; Yamada, Y; [1]  Lin, Pengju; Bursill, L A [2] 
  1. Tohoku Univ., Sendai (Japan). Coll. of General Education
  2. Melbourne Univ., Parkville, VIC (Australia). School of Physics
Publication Date:
Dec 31, 1994
Product Type:
Technical Report
Report Number:
UM-P-92/86
Reference Number:
SCA: 360602; PA: AIX-26:015202; EDB-95:029754; SN: 95001328992
Resource Relation:
Other Information: PBD: [1994]
Subject:
36 MATERIALS SCIENCE; TITANIUM; CRYSTALLOGRAPHY; ELECTRONIC STRUCTURE; CRYSTAL LATTICES; DISLOCATIONS; PHASE TRANSFORMATIONS; SODIUM CHLORIDES; THIN FILMS; TRANSMISSION ELECTRON MICROSCOPY; 360602; STRUCTURE AND PHASE STUDIES
Sponsoring Organizations:
Australian Research Council, Canberra, ACT (Australia); Tohoku Univ., Sendai (Japan)
OSTI ID:
10113603
Research Organizations:
Melbourne Univ., Parkville, VIC (Australia). School of Physics
Country of Origin:
Australia
Language:
English
Other Identifying Numbers:
Other: ON: DE95615391; TRN: AU9414244015202
Availability:
OSTI; NTIS (US Sales Only); INIS
Submitting Site:
INIS
Size:
16 p.
Announcement Date:
Jun 30, 2005

Technical Report:

Citation Formats

Kasukabe, Y, Yamada, Y, Lin, Pengju, and Bursill, L A. Characterization of {l_brace} 11-bar 01 {r_brace} twin dislocation structures in evaporated titanium thin films by HREM. Australia: N. p., 1994. Web.
Kasukabe, Y, Yamada, Y, Lin, Pengju, & Bursill, L A. Characterization of {l_brace} 11-bar 01 {r_brace} twin dislocation structures in evaporated titanium thin films by HREM. Australia.
Kasukabe, Y, Yamada, Y, Lin, Pengju, and Bursill, L A. 1994. "Characterization of {l_brace} 11-bar 01 {r_brace} twin dislocation structures in evaporated titanium thin films by HREM." Australia.
@misc{etde_10113603,
title = {Characterization of {l_brace} 11-bar 01 {r_brace} twin dislocation structures in evaporated titanium thin films by HREM}
author = {Kasukabe, Y, Yamada, Y, Lin, Pengju, and Bursill, L A}
abstractNote = {The structure of {l_brace}11-bar 01{r_brace} twin dislocations in Ti films evaporated on NaCl substrates at 250 deg C has been examined and characterised by high-resolution electron microscopy. The results have revealed that a twin dislocation structure with step height 4 x d(K{sub 1}), where d(K{sub 1}) is the spacing of the {l_brace}11-bar 01{r_brace} twin planes, actually dissociates into two {l_brace}11-bar 01{r_brace} twin dislocations with step heights of d(K{sub 1}) and 3 x d(K{sub 1}). The twin dislocation with a step height of 3 x d(K{sub 1}) contains an edge dislocation in the core while that with a step height of d(K{sub 1}) is a simple classical twin dislocation structure. Twin dislocations with step height of 2 x d(K{sub 1}), including an edge dislocation in the core, also occur. The atomic-scale core structures of {l_brace}11-bar 01{r_brace} twin dislocations may be derived by analysis of the high-resolution images. The relative mobilities of the three types of twin dislocations is then discussed. 17 refs., 4 figs.}
place = {Australia}
year = {1994}
month = {Dec}
}