TEM-MD characterization of KDP deformation mechanisms under nanoindentation

被引：9

作者：

Yang, Shengyao ^{[1
]}

Zhang, Liangchi ^{[2
,3
,4
]}

Wu, Zhonghuai ^{[5
]}

Webster, Richard F. ^{[6
]}

Kong, Charlie ^{[6
]}

Chang, Shery L. Y. ^{[6
]}

机构：

[1] Univ Queensland, Sch Mech & Min Engn, Brisbane, Qld 4072, Australia

[2] Southern Univ Sci & Technol, Shenzhen Key Lab Cross scale Mfg Mech, Shenzhen 518055, Guangdong, Peoples R China

[3] Southern Univ Sci & Technol, SUSTech Inst Mfg Innovat, Shenzhen 518055, Guangdong, Peoples R China

[4] Southern Univ Sci & Technol, Dept Mech & Aerosp Engn, Shenzhen 518055, Guangdong, Peoples R China

[5] Beijing Inst Technol, Sch Opt & Photon, Beijing Key Lab Precis Optoelect Measurement Instr, Beijing 100081, Peoples R China

[6] Univ New South Wales, Mark Wainwright Analyt Ctr, Electron Microscope Unit, Sydney, NSW 2052, Australia

来源：

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY | 2023年 / 43卷 / 08期

基金：

中国国家自然科学基金;

关键词：

Transmission electron microscopy (TEM); Molecular dynamics (MD); Nanoindentation; Plastic deformation; KDP crystals; POTASSIUM DIHYDROGEN PHOSPHATE; INERTIAL CONFINEMENT FUSION; CRYSTAL; TECHNOLOGIES;

D O I：

10.1016/j.jeurceramsoc.2023.02.031

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

As a key material in an inertial confinement fusion system, potassium dihydrogen phosphate (KDP) and its component manufactured must possess extremely high surface and subsurface quality. In this letter, we present our first observation of the amorphization of KDP in the subsurface after nanoindentation on KDP under transmission electron microscopy (TEM). The results are in good agreement with our Molecular Dynamics (MD) simulation predictions. The findings provide an understanding of the deformation mechanisms of KDP under nanoindentation, and offer a sensitive approach to observing electron beam sensitive materials under TEM.

引用

页码：3844 / 3848

页数：5

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