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A method is provided for producing a preform structure which is used in a composite aluminium or aluminium alloy component in which a base metal of an aluminium or aluminium alloy is reinforced with reinforcing materials. A slurry is prepared by mixing reinforcing materials including ceramic particl

A method is provided for producing a preform structure which is used in a composite aluminium or aluminium alloy component in which a base metal of an aluminium or aluminium alloy is reinforced with reinforcing materials. A slurry is prepared by mixing reinforcing materials including ceramic particles and first whiskers with burning-away powders and liquid. Liquid components contained in the slurry are filtered to provide a dehydrated structure. Thereafter a preform structure is produced by sintering the ceramic particles with the first whiskers after burning the burning-away powders in the dehydrated structure.

대표청구항 ▼

[ What is claimed is:] [1.] A preform structure which is used in a composite aluminum or aluminum alloy component in which a base metal of an aluminum or an aluminum alloy is reinforced with reinforcing materials, comprising:reinforcing materials including ceramic particles, first whiskers, inorgani

[ What is claimed is:] [1.] A preform structure which is used in a composite aluminum or aluminum alloy component in which a base metal of an aluminum or an aluminum alloy is reinforced with reinforcing materials, comprising:reinforcing materials including ceramic particles, first whiskers, inorganic binders and second whiskers;the second whiskers having a better sintering properly and smaller diameters and shorter lengths of fibers than those of the first whiskers; andthe ceramic particles, the first whiskers, the inorganic binders and the second whiskers are sintered so that the ceramic particles are bonded to both of the first and second whiskers by way of the inorganic binders with the ceramic particles being directly bonded to the second whiskers.