Preparation and Arc Erosion Resistance of C_f/Cu Composite by Vacuum Melting Infiltration
来源期刊：Journal Of Wuhan University Of Technology Materials Science Edition2014年第5期
论文作者：张华煜 LIU Yiwen ZHAO Xianling LUAN Xingang
文章页码：1039 - 1043
摘 要：Cf/Cu composite was prepared by vacuum melting infiltration. Tiand Cr were doped to the Cu alloy to improve the wettability between Cu and carbon. The microstructure was investigated by XRD, SEM and EDS. The arc erosion rate of Cf/Cu composite was investigated in vacuum. The results showed that the Tiand Cr could improve the wettability between Cu and C/C preform and the infiltration ability of Cu into C/C preform greatly. A TiC interface formed between the fibers and matrix. The good bonding between the fiber and matrix guaranteed that part of the Cu matrix can still be bonded on the fibers even when the material was exposed to the plasma. Consequently, the carbon fibers were protected from the erosion. In comparison, Cu was completely consumed by the arc erosion. Hence, the graphite was eroded and presented a caulifl ower-like morphology. Therefore, the prepared Cf/Cu had better ability to resist the arc erosion, compared with common Cu-C material.
张华煜1，LIU Yiwen2，ZHAO Xianling1，LUAN Xingang2
1. College of Material Science and Engineering, Taiyuan University of Science and Technology2. Science and Technology on Thermostructural Composite Materials Laboratory, Northwestern Polytechnical University
摘 要：Cf/Cu composite was prepared by vacuum melting infiltration. Tiand Cr were doped to the Cu alloy to improve the wettability between Cu and carbon. The microstructure was investigated by XRD, SEM and EDS. The arc erosion rate of Cf/Cu composite was investigated in vacuum. The results showed that the Tiand Cr could improve the wettability between Cu and C/C preform and the infiltration ability of Cu into C/C preform greatly. A TiC interface formed between the fibers and matrix. The good bonding between the fiber and matrix guaranteed that part of the Cu matrix can still be bonded on the fibers even when the material was exposed to the plasma. Consequently, the carbon fibers were protected from the erosion. In comparison, Cu was completely consumed by the arc erosion. Hence, the graphite was eroded and presented a caulifl ower-like morphology. Therefore, the prepared Cf/Cu had better ability to resist the arc erosion, compared with common Cu-C material.
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