標題: Ultra-high annealing twin density in < 211 >-oriented Cu films
作者: Chen, Kuan-Ju
Chen, Jui-Yuan
Ting, Yi-Hsin
Wu, Wen-Wei
Chen, Chih
材料科學與工程學系
Department of Materials Science and Engineering
關鍵字: Annealing twins;Nanotwinned copper;(211) texture
公開日期: 15-Jul-2020
摘要: We reported the fabrication of densely twinned Cu films with highly (211) texture developed from the annealing of <111>-oriented nanotwinned copper (nt-Cu) films. During the annealing at 300 degrees C, abnormal grain growth occurred in the nt-Cu film and resulted in a microstructure dominated by the anomalously large <211>-oriented grains. Moreover, densely-intersected annealing twin bands with <221>, <611>, and <931> orientations are embedded in the large <211> grains. The measured annealing twin density is 0.2 mu m(-1), which is highest among the reported values in previous literatures with similar grain size. Extensive multiple twinning process may occur during the annealing to form the unique microstructure. (C) 2020 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
URI: http://dx.doi.org/10.1016/j.scriptamat.2020.03.050
http://hdl.handle.net/11536/154306
ISSN: 1359-6462
DOI: 10.1016/j.scriptamat.2020.03.050
期刊: SCRIPTA MATERIALIA
Volume: 184
起始頁: 46
結束頁: 51
Appears in Collections:Articles