Method of making metal matrix composite

Details Method of making metal matrix composite Method of making metal matrix composite

1994-09-29

1996-12-31

Lin, Kuang Y.

Metal founding

Process

Shaping a forming surface

164 97, B22D 1914, B22D 1916

Patent

active

055884776

ABSTRACT:
A method of making a heterogeneous metal matrix composite (MMC), and preform therefor. An open cell foam substrate is infiltrated with a slurry of reinforcement particles carried in a vehicle. The vehicle is removed leaving the particles trapped within the interstices of the foam. In one embodiment, the substrate is a fugitive polymer foam which is removed prior to filling the preform with metal. In another embodiment, the substrate is a metal foam which remains with the preform and the MMC after filling with metal.

REFERENCES:
patent: 3694325 (1972-09-01), Katz et al.
Howard H. D. Lee, "Validity of Using Mercury Porosimetry to Characterize the Pore Structures of Seramic Green Compacts", J.Am.Ceram. Soc. 73[8]2309-15 (1990).
David R. Clarke, "Interpenetrating Phase Composites", J.Am.Ceram. Soc., 75[4] 739-59 (1992).
Fred F. Lange et al, "Method for Processing Metal-Reinforced Ceramic Composites", J.Am.Ceram. Soc. 73[2]388-93 (1990).
Powell et al, U.S. Ser. No. 08/169,251 filed Dec. 20, 1993, "Reinforcement Preform, Method of Making Same and Reinforced Composite Made Therefrom".

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