B - Operations – Transporting – 22 – D
Patent
B - Operations, Transporting
22
D
75/1.3
B22D 19/14 (2006.01) C04B 41/45 (2006.01) C04B 41/51 (2006.01) C04B 41/81 (2006.01) C04B 41/88 (2006.01) C22C 47/08 (2006.01)
Patent
CA 2000791
- 46 - Abstract The present invention relates to a novel method for forming a metal matrix composite body, and products produced thereby. Particularly, a permeable mass of filler material is formed into a preform, the preform having at least a portion thereof which contains a cavity. An infiltration enhancer and/or an infiltration enhancer precursor and/or an infiltrating atmosphere are also in communication with the preform, at least at some point during the process, which permits molten matrix metal to spontaneously infiltrate the preform when the preform is placed into molten matrix metal. An infiltrating atmosphere is provided in communication in the cavity in the preform for at least a portion of the process and molten matrix metal is contacted with an exterior portion of the preform, such that molten matrix metal will spontaneously infiltrate the preform from an exterior surface thereof toward the cavity.
Lanxide Technology Company Lp
Rogers Law Office
LandOfFree
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