Metal founding – Process – Shaping a forming surface
Patent
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".
Kibbel Bradley W.
Lee Howard H.
Sokol Gerald E.
General Motors Corporation
Lin Kuang Y.
Plant Lawrence B.
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