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个人信息Personal Information
教授
博士生导师
硕士生导师
任职 : 精密与特种加工教育部重点实验室 副主任； 中国光整加工专业委员会 主任委员； 中国生产工程学会 常务理事； 中国国际磨粒加工技术学会（ICAT）常务理事
性别：男
毕业院校：东北工学院
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
办公地点：机械工程学院知方楼7185室
联系方式：0411-84706138 gaohang@dlut.edu.cn
电子邮箱：gaohang@dlut.edu.cn
Nanomechanical behaviors of (110) and (111) CdZnTe crystals investigated by nanoindentation
点击次数：
论文类型：期刊论文
发表时间：2009-12-01
发表刊物：RARE METALS
收录刊物：SCIE、EI、CSCD、Scopus
卷号：28
期号：6
页面范围：570-575
ISSN号：1001-0521
关键字：nanomechanics; anisotropy; nanoindentation; CdZnTe
摘要：The nanomechanical behaviors of (110) and (111) CdZnTe crystals were investigated by nanoindentation. It was found that the indenter tip was adhered by the removed materials in scanning testing area although the scanning force on the tested surface was very small (1000 nN), which would affect the testing result of nanoindentation, so the indenter was clean before nanoindentation test. The experimental results showed that the hardness and Young's modulus decreased with the increase of indentation loads on the same plane. Because of the anisotropy of the CdZnTe crystal, the average hardness of (110) plane is 35% lower than that of (111) plane, and there are about 30% difference of the hardness along different crystallographic directions on the same plane. The hardness in 0 degrees and 120 degrees testing directions was the same due to the threefold symmetry of a Berkovich indenter. And the anisotropy affected the surface quality during machining of CdZnTe crystal.