PatentsAlert
METAL MATRIX COMPOSITES
MANUFACTURE
(FABRICATION)
The present invention relates to the formation of a metal matrix composite body by a spontaneous infiltration technique. Particularly, an infiltration enhancer and/or infiltration enhancer precursor can be positioned at least partially between or at an interface between a matrix metal and a filler material (or preform) which is to be infiltrated by molten matrix metal. Moreover, at least at some point during the process, an infiltrating atmosphere may be in communication with the filler material or preform and/or matrix metal.
5454403 WEAVING METHOD FOR CONTINUOUS FIBER COMPOSITES Kerr William R; Gunderson Allan W Kettering, OH, Assigned to The United States of America as represented by the Secrtary of the Air Force A method for fabricating a fiber-metal matrix composite is described, which comprises the steps of providing fiber and metal crossweave strands, interweaving the fiber and crossweave strands by tightly crimping the strands in sets of at least two spaced about one fiber diameter apart around the fibers and spacing the strand sets about 35 to 50 fiber diameters apart, and subsequently consolidating the weave by hot pressing.
5454425 METAL MATRIX COMPOSITE MADE WITH REDUCED INTERFACE REACTIONS Kao Wei H Ranch0 Palos Verdes, CA, UNITED STATES Assigned to The Aerospace Corporation A metal matrix composite is produced by closely aligning together a sheet of hydrided or hydrogenated alloy with a filament preform at a relatively low temperature. The resulting metal matrix will have a minimum of excessive chemical reactions at the alloyfilament interface thereby allowing the composite to achieve theoretical mechanical property values.
5456306 METHOD OF FORMING A METAL MATRIX COMPOSITE BODY BY A SPONTANEOUS INFILTRATION TECHNIQUE Aghajania Michael K; Nagelberg Alan Be1 Air, MD, UNITED STATES Assigned to Lanxide Technology Company LP
5458480 TOOLING MATERIALS FOR MOLDS Newmkirk Marc S; Simpson Robert; Niskanen Paul; Klier Eric M Newark, DE, 19711, UNITED STATES PCT No. PCT/US91/09118 Sec. 371 Date Oct. 6, 1993 Sec. 102(e) Date Oct. 6, 1993 PCT Filed Dec. 5, 1991. This invention relates generally to the fabrication of materials for use as tools in various applications. Specific emphasis is placed upon certain ceramic matrix composite materials and metal matrix composite materials for use as tools as well as certain ceramic matrix composite and/or metal matrix composite coatings on substrate materials, also for use as tools. This invention makes specific reference to a number of different materials for use as tools in the molding of thermoplastic materials (e.g., polymers, plastics, ceramics, glasses, metals) with particular emphasis being directed to the thermoplastic molding of plastics or polymers.
5460774 METHOD OF MANUFACTURING AXISYMMETRIC COMPONENTS MADE OF A COMPOSITE MATEHAVING A METALLIC MATRIX Bachelet Eri Paris, FRANCE Assigned to Societe Nationale d’Etude et de Construction de Moteurs d’Aviation (SNECMAA) Method of manufacturing an axisymmetric component made of a composite material having a metallic matrix is described in which at least one ceramic fiber and at least one wire of the metal which is to constitute the matrix are wound simultaneously side by side to form a number of layers on a suitably shaped mandrel and in such a manner as to ensure absence of contact between the fiber turns of each individual layer tid between the fiber turns of adjacent layers, and the farmed layers are subsequently subjected to hot isostatic compaction. The ceramic fiber may be of the silicon carbide type and the metal wire forming the matrix may be of titanium or titanium-alloy.
341