AN INVERSE SHAPE REPLICATION METHOD FOR FORMING METAL MATRIX COMPOSITE BODIES AND PRODUCTS PRODUCED THEREFROM

The present invention relates to the formation of metal matrix composite bodies by a spontaneous infiltration technique, and novel metal matrix composite bodies produced according to the method. An ingot of matrix metal is surrounded by a permeable mass of filler material. An infiltration enhancer a...

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Bibliographic Details
Main Authors WHITE, DANNY R, URQUHART, ANDREW W
Format Patent
LanguageEnglish
French
Published 10.05.1990
Edition5
Subjects
ALLOYS
ARTIFICIAL STONE
CASTING
CASTING OF METALS
CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
CEMENTS
CERAMICS
CHEMISTRY
COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS
CONCRETE
FERROUS OR NON-FERROUS ALLOYS
LIME, MAGNESIA
MAKING METALLIC POWDER
MANUFACTURE OF ARTICLES FROM METALLIC POWDER
METALLURGY
PERFORMING OPERATIONS
POWDER METALLURGY
REFRACTORIES
SLAG
TRANSPORTING
TREATMENT OF ALLOYS OR NON-FERROUS METALS
TREATMENT OF NATURAL STONE
WORKING METALLIC POWDER
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Summary:The present invention relates to the formation of metal matrix composite bodies by a spontaneous infiltration technique, and novel metal matrix composite bodies produced according to the method. An ingot of matrix metal is surrounded by a permeable mass of filler material. An infiltration enhancer and/or an infiltration enhancer precursor and/or an infiltrating atmosphere are also in communication with the filler material, at least at some point during the process, which permit the shaped ingot of matrix metal, when made molten, to spontaneously infiltrate the surrounding permeable mass of filler material. After the spontaneous infiltration, a metal matrix composite body is produced having therein a cavity which substantially corresponds in shape to the original ingot of matrix metal.
Bibliography:Application Number: CA19892000775