Fabrication and structural characterization of metal films coated on cenosphere particles by magnetron sputtering deposition |
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Authors: | Xiaozheng Yu Zhigang Shen Zheng Xu |
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Institution: | a Beijing Key Laboratory for Powder Technology R & D, Beijing University of Aeronautics and Astronautics, Beijing 100083, People's Republic of China b General Research Institute for Non-ferrous Metals, Beijing 100088, People's Republic of China c China National Academy of Nanotechnology & Engineering, Tianjin 300457, People's Republic of China |
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Abstract: | Metal films were successfully coated on cenosphere particles using a magnetron sputtering deposition system in which a newly designed sample stage equipped with an ultrasonic vibration generator was used for the tumbling of cenosphere particles. It was found by FE-SEM and AFM results that the films were well compacted and highly uniform in thickness. Due to the difference in sputtering rate, the film thicknesses estimated from FE-SEM characterizations in backscattered mode were <10, 39, 50 and 134 nm for Co, Ni, Cu and Ag films, respectively, under the same sputtering deposition conditions. The RMS values derived from the AFM measurements were 1.94, 4.31, 10.92 and 18.33 nm for Co, Ni, Cu and Ag films, respectively, which can ascribe to the different crystallization behaviors for the four metals. The experiment results indicate that the coating method can be applicable for the fabrication of many other films on cenosphere particles which can be sputter deposited. |
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Keywords: | Cenosphere Magnetron sputtering Metal films |
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