Resistance to intense electron beam bombardment of TiC/Graphite: Numerical modeling and experimental investigation

被引：5
作者：
Chen, Changhua [1 ]
Tang, Yunsheng [1 ,2 ]
Liu, Wenyuan [1 ]
Cheng, Jun [1 ]
Ke, Changfeng [1 ]
Huo, Yankun [1 ]
Wu, Ping [1 ]
Ni, Jianzhong [1 ]
机构：
[1] Northwest Inst Nucl Technol, Xian 710024, Peoples R China
[2] Xiangtan Univ, Acad Inst Mat Sci & Engineer, Xiangtan 411105, Peoples R China
来源：
CERAMICS INTERNATIONAL | 2021年 / 47卷 / 01期
关键词：
Graphite; Electron beam bombardment; TiC coating; Modeling; Energy deposition; Electron damage; ANODE MATERIALS; ABLATION; GRAPHITE; TITANIUM;
D O I：
10.1016/j.ceramint.2020.08.141
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：
Resistance to intense electron beam bombardment of TiC/Graphite was investigated numerically and experimen-tally. The results indicate that the decreasing of initial electron energy and the increasing of TiC coating thickness could both enhance the electron energy deposition inside the surface layer of the TiC/Graphite, and finally cause the increasement of the temperature differences at the interface between TiC coating and graphite substrate. The graphite substrate is well coated with TiC in all the TiC/graphite targets, and the morphology of the TiC coatings could be controlled by adjusting its thickness. Under electron beam with accelerating voltage of 850 keV, current of 11 kA, pulsewidth of 40 ns and pulse number of 30 times, TiC/Graphite target with TiC coating thickness of 1 mu m shows more excellent electron beam bombardment resistance, agreeing with the results of the numerical modeling.
引用
收藏
页码：361 / 366
页数：6
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