Molecular dynamics analysis of friction damage on nano-twin 6 H-SiC surface

被引：4

作者：

Yu, Dongling ^{[1
,2
]}

Zhang, Huiling ^{[1
]}

Li, Bin ^{[1
]}

Zheng, Qi ^{[1
]}

Fang, Changfu ^{[1
]}

Wu, Nanxing ^{[1
,2
]}

机构：

[1] Jingdezhen Ceram Univ, Sch Mech & Elect Engn, Jingdezhen 333403, Jiangxi, Peoples R China

[2] Lab Ceram Mat Proc Technol Engn, Jingdezhen 333403, Jiangxi Provinc, Peoples R China

来源：

TRIBOLOGY INTERNATIONAL | 2023年 / 180卷

基金：

中国国家自然科学基金;

关键词：

6H-SiC; Nano-twin; Friction; Dislocation; Deformation damage; FRACTURE; SIMULATION; BEHAVIOR; CARBIDE;

D O I：

10.1016/j.triboint.2023.108223

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

In order to investigate the deformation and damage of nano-twin 6 H-SiC after friction, a three-dimensional model was established. It is found that the barrier formed by layered faults can block the propagation of stress and hinder the formation and expansion of dislocation. The strength of the twins shows Hall-Petch phe-nomenon, and the strength is the highest when the thickness is 10.3 nm. The twin boundary is the initial point of deformation damage, and the greater the thickness of the twin, the greater the damage. The "Point-Line-Plane" destruction in twin crystals has a great influence on the processing of crystal materials.

引用

页数：8

共 27 条

[21] Revealing the deformation mechanisms of 6H-silicon carbide under nano-cutting [J].

Wu, Zhonghuai ;

Liu, Weidong ;

Zhang, Liangchi .

COMPUTATIONAL MATERIALS SCIENCE, 2017, 137 :282-288

[22] Dislocation Analysis of 3C-SiC Nanoindentation with Different Crystal Plane Groups Based on Molecular Dynamics Simulation [J].

Yu, Dongling ;

Zhang, Huiling ;

Yi, Jiaqi ;

Fang, Yongzhen ;

Wu, Nanxing .

JOURNAL OF NANOMATERIALS, 2021, 2021

[23] Molecular dynamics simulation of microstructure evolution during the fracture of nano-twinned [J].

Zhu, Yuhui ;

Hu, Xiaowen ;

Ni, Yushan .

ENGINEERING FRACTURE MECHANICS, 2021, 248

[24] Friction behavior in nanoscratching of reaction bonded silicon carbide ceramic with Berkovich and sphere indenters [J].

Zhang, Feihu ;

Meng, Binbin ;

Geng, Yanquan ;

Zhang, Yong ;

Li, Zhipeng .

TRIBOLOGY INTERNATIONAL, 2016, 97 :21-30

[25] Molecular dynamics study of the removal mechanism of SiC in a fixed abrasive polishing in water lubrication [J].

Zhou, Piao ;

Li, Jun ;

Wang, Zikun ;

Chen, Jiapeng ;

Li, Xue ;

Zhu, Yongwei .

CERAMICS INTERNATIONAL, 2020, 46 (16) :24961-24974

[26]

Zhou QS, 2021, J U S CHINA, V35, P63, DOI [10.19431/j.cnki.1673-0062.2021.05.010, DOI 10.19431/J.CNKI.1673-0062.2021.05.010]

[27] A study of deformation behavior and phase transformation in 4H-SiC during nanoindentation process via molecular dynamics simulation [J].

Zhu, Bo ;

Zhao, Dan ;

Zhao, Hongwei .

CERAMICS INTERNATIONAL, 2019, 45 (04) :5150-5157

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