Fabrication of C/SiC composites by an electrodeposition/sintering method and the control of the properties |
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Authors: | Chihiro Kawai Satoshi Wakamatsu |
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Affiliation: | (1) Itami Research Laboratories, Sumitomo Electric Industries, Ltd., 1-1-1, Koya-Kita, Itami, 664 Hyogo, Japan;(2) Friction Pad Engineering Department, Brake Division, Sumitomo Electric Industries, Ltd., 1-1-1, Koya-Kita, Itami, 664 Hyogo, Japan |
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Abstract: | Carbon fibre reinforced SiC matrix composites (C/SiC composites) were fabricated using an electrodeposition/sintering method and the control of properties such as flexural strength. Young's modulus and thermal expansion coefficient was investigated in order to fabricate C/SiC-based functionally gradient materials. By means of choosing the condition of electrodeposition and sintering, C/SiC composites with volume fraction of fibre (Vf) ranging from 45 to 78% were fabricated. Maximum flexural strength and Young's modulus were 185 MPa and 47.5 GPa with Vf of 75%, but both properties decreased with the decrease in Vf. Conversely, the thermal expansion coefficient increased with the decrease in Vf; the value varied from 0.2 to 2.75 × 10–6K–1. |
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