郭晓光Maggie Guo

(教授)

 博士生导师  硕士生导师
学位:博士
性别:女
毕业院校:大连理工大学
所在单位:机械工程学院
电子邮箱:guoxg@dlut.edu.cn

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Nanoindentation on the doubler plane of KDP single crystal

发表时间:2019-03-12 点击次数:

论文名称:Nanoindentation on the doubler plane of KDP single crystal
论文类型:期刊论文
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.
发表时间:2013-03-01