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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

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Nanoindentation on the doubler plane of KDP single crystal

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论文类型:期刊论文

发表时间:2013-03-01

发表刊物:Journal of Semiconductors

收录刊物:EI、ISTIC、Scopus

卷号:34

期号:3

ISSN号:16744926

摘要:The nanohardness is from 1.44 to 2.61 GPa, the Vickers hardness is from 127 to 252 Vickers, and elastic modulus is from 52 to 123 GPa by the nanoindentation experiments on the doubler plane of KDP crystal. An indentation size effect is observed on the doubler plane in the test as the nanohardness and elastic modulus decreases with the increase of the maximum load. Slippage is identified as the major mode of plastic deformation, and pop-in events are attributed to the initiation of slippage. And the variation of unloading curve end is the result of stick effects between the indenter and the contact surface. The depth of the elastic deformation, which is between 40 and 75 nm, is responsible for the elastic deformation. The doubler plane of KDP crystal has anisotropy, and the relative anisotropy of nanohardness is 8.2% and the relative anisotropy of elastic modulus is 8.0%. ? 2013 Chinese Institute of Electronics.