张振宇

个人信息Personal Information

教授

博士生导师

硕士生导师

性别:男

毕业院校:天津大学

学位:博士

所在单位:机械工程学院

学科:机械制造及其自动化. 机械设计及理论

办公地点:机械工程学院知方楼5055

联系方式:zzy@dlut.edu.cn

电子邮箱:zzy@dlut.edu.cn

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Characterization of microstructural stability for nanotwinned mercury cadmium telluride under cyclic nanoindentations

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论文类型:期刊论文

发表时间:2013-08-01

发表刊物:SCRIPTA MATERIALIA

收录刊物:SCIE、EI、Scopus

卷号:69

期号:4

页面范围:299-302

ISSN号:1359-6462

关键字:Nanoindentation; Microstructure; Nanotwins; Stability; Mercury cadmium telluride

摘要:Nanotwinned (nt) mercury cadmium telluride (HgCdTe or MCT) was prepared using nanoindentations. The hardness of nt-MCT is 100 times higher than that of monocrystalline counterparts. Transmission electron microscopy shows that the twin lamellae of nt-MCT prior to cyclic nanoindentations are distributed along two directions, intersecting at an angle of 76 degrees. The nanotwinned microstructure of nt-MCT is stable after 100 cyclic nanoindentations. The loading-unloading curves of nt-MCT are basically invariable after 50 cycles, and have elastic characteristics. (C) 2013 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.