| 摘要 |
PROBLEM TO BE SOLVED: To provide an aluminum-silicon carbide composite body which is suitable as a base sheet for a power module. SOLUTION: There is disclosed a method for producing a sheet-shaped aluminum-silicon carbide composite body, wherein 15 to 40 vol.% of metal powder comprising 77 to 94.5 mass% aluminum, 5 to 20 mass% silicon and 0.5 to 3 mass% magnesium, 10 to 50 vol.% of silicon carbide powder with the average particle diameter of 0.5 to 30 μm, 5 to 35 vol.% of boron nitride powder with the average particle diameter of 1 to 30 μm and a crystallization degree (GI value) of ≤3 and 5 to 35 vol.% graphite powder obtained by graphitizing coke-based carbon with the average particle diameter of 1 to 1,000 μm are mixed, thereafter, the mixture is filled into a mold subjected to mold releasing treatment, is heated at 600 to 750°C, is subjected to hot pressing under ≥10 MPa, and is further subjected to cutting and/or face working, so as to have a sheet thickness of 2 to 6 mm. COPYRIGHT: (C)2010,JPO&INPIT
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