SiC/Cu Composite Prepared by Spontaneous Infiltration of Copper Alloy into Porous SiC Ceramic

Abstract:

A porous SiC ceramic reinforced copper-matrix composite was fabricated by spontaneous infiltration of molten Cu-24at%Si alloy into the reinforcement. The influence of process parameters on the infiltration behavior and microstructure of the as-prepared SiC/Cu composite investigations showed that infiltration temperature had an important influence on the infiltration behavior, and higher infiltration temperature which decreased the viscosity of molten Cu-24Si was beneficial to the penetration. Besides, the degree of infiltration increased with the increase of dwelling time at 1600°C. SiC particles were bonded together by sintering additives to form the porous reinforcement, which can be maintained after spontaneous infiltration. The interfacial bond between SiC and Cu-24Si alloy was tight, and no obvious interfacial reaction layer was observed in the as-prepared composite.

• Periodical: Materials Science Forum (Volume 814)
• Pages: 569-573
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.814.569
• Online since: March 2015
• Authors: Kuo Zhang, Zhong Qi Shi*, Gui Wu Liu, Guan Jun Qiao
• Keywords: Microstructure, Process Parameters, SiC/Cu Composite, Spontaneous Infiltration

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