Light metal matrix composite materials reinforced with silicon carbide fibers
AssigneeThe Research Institute for Iron, Steel and Other Metals of the Tohoku University
InventorsSeishi Yajima, Josaburo Hayashi, Mamoru Omori, Hideo Kayano
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Abstract
Light metal composite materials reinforced with novel continuous silicon carbide fibers composed of aluminum, aluminum alloy or magnesium alloy matrix and the continuous silicon carbide fibers containing 0.01-40% by weight of free carbon, in which the free carbon is reacted with aluminum or added metal elements in the aluminum alloy or magnesium alloy to form carbides. When the silicon carbide fibers are coated with a metal or ceramics, the wettability of the silicon carbide fibers to said matrix is more improved.
Claims7
A method for producing aluminum, aluminum alloy or magnesium alloy composite material reinforced with continuous silicon carbide fibers, which comprises arranging 80-20% by volume of the continuous silicon carbide fibers containing 0.01-40% by weight of free carbon obtained by baking spun fibers consisting mainly of an organosilicon high molecular weight compound in 20-80% by volume of fused aluminum matrix, to react the free carbon contained in the silicon carbide fibers with aluminum or the metal elements contained in the above described aluminum alloy or magnesium alloy which easily form carbides, to form carbides of these metals and to make the wettability of the silicon carbide fibers to the metal matrix high.
Dependencies are inferred from the claim text.