Preparation and Characterization of Aluminum-Tungsten Coatings on Hollow Microspheres
SUN Shubing1,2, LIU Yansong1, HE Xiaoshan1, WANG Feng2, HE Zhibing1, HUANG Jinglin1, LIU Lei1
1 Research Center of Laser Fusion, China Academy of Engineering Physics, Mianyang 621900; 2 College of Materials Science and Engineering, Chongqing Jiaotong University, Chongqing 400074
Abstract: In the research of inertial confinement fusion, high-low Z metal coating is vital to the performance of target. Tilt rotating tray and knocking device were applied in this experiment by DC magnetron sputtering technology. The Al-W multilayer coa-tings with different working pressure were deposited on GDP hollow microspheres. And using scanning electron microscopy, atomic force microscopy and X-ray diffractometer to study the effect of working pressure on the quality of the multilayer coatings. The results show that the uniformity of thickness of the multilayer coating is better which is more than 90%. And the coating has a compact columnar crystal growth model with small residual stress. The working pressure has significant influence on the quality of the coa-tings. The density of structure decreased with pressure increased. At the same time, the morphology and particle size of the coating changes. All of which has result a similar variation tendency of the surface roughness corresponding to the surface particles. A ten-dency decreased first and then increased when the working pressure increase. Especially, when the working pressure is 0.5 Pa, the Al-W coating has the best comprehensive performance. Its surface morphology is of small homogeneous pyramid-shape and surface roughness value is as low as 331.1 nm.
孙书兵, 刘艳松, 何小珊, 王锋, 何智兵, 黄景林, 刘磊. 空心微球上Al-W多层涂层的制备与表征[J]. 材料导报, 2018, 32(24): 4297-4302.
SUN Shubing, LIU Yansong, HE Xiaoshan, WANG Feng, HE Zhibing, HUANG Jinglin, LIU Lei. Preparation and Characterization of Aluminum-Tungsten Coatings on Hollow Microspheres. Materials Reports, 2018, 32(24): 4297-4302.
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2018, Vol. 32 
