Transient High Heat Load Performance of Atmospheric Plasma Sprayed Tungsten Coating

被引:2
|
作者
Wang, Fan [1 ]
Huang, Jianjun [1 ]
机构
[1] Shenzhen Univ, Coll Phys Sci & Technol, SZU CASIPP Joint Lab Appl Plasma, Room 303D, Shenzhen 518060, Peoples R China
关键词
Plasma spray; Tungsten coating; Transient high heat load; High current pulsed electron beam; FABRICATION;
D O I
10.1007/s10894-016-0078-x
中图分类号
TL [原子能技术]; O571 [原子核物理学];
学科分类号
0827 ; 082701 ;
摘要
Tungsten coatings on oxygen-free copper substrates were fabricated by atmospheric plasma spraying (APS) technique. The properties of the microstructure, porosity, microhardness and oxidation of the coatings were characterized and measured. In order to evaluate the thermal properties of the APS-W coating, a high current pulsed electron beam facility was introduced to carry out the transient high heat load tests. Three power densities of 0.2, 0.5 and 1.0 GW/m(2) and total pulse duration of 5 ms were performed on the coating surfaces. The surface temperature and behavior of the APS-W coatings under the transient high heat load were investigated. Obvious melting and re-solidification were found on the treated APS-W coatings, and cracks were also observed on coating surface.
引用
收藏
页码:608 / 612
页数:5
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