A method for manufacturing carbon fiber reinforced aluminum composites is provided. Particularly, the method uses a stir casting process during a melting and casting process and reduces a contact angle of carbon against aluminum by inputting carbon fibers while supplying a current to liquid aluminum to induce the carbon fibers to be spontaneously and uniformly distributed in the liquid aluminum and inhibits a formation of an aluminum carbide (Al.sub.4C.sub.3) phase on an interface between the aluminum and the carbon fiber, thereby manufacturing carbon fiber reinforced aluminum composites having excellent electrical, thermal and mechanical characteristics.

The product of and a process for forming a metal composite comprising particles of a carbon allotrope dispersed in a metal or a mixture of metals. In one embodiment, the process includes the steps of: (a) contacting particles of a carbon allotrope with surfactant having an organic portion and an anionic portion wherein the anionic portion is bonded to the organic portion and wherein the anionic portion is ionically associated with a cation so that the organic portion of the surfactant is adsorbed onto the surface of the particles of the carbon allotrope to produce surfactant modified particles; (b) contacting the surfactant modified particles with a transition metal cation and/or a post-transition metal cation and/or mixtures thereof to replace some or all of the cations of the surfactant modified particles with a transition metal cation and/or a post-transition metal cation and/or mixtures thereof to produce metal ion modified particles; (c) mixing the metal ion modified particles with a metal or a mixture of metals to form a mixture thereof; and (d) processing the mixture to form a metal composite comprising particles of the carbon allotrope dispersed in the metal or mixture of metal. In another embodiment the process includes the steps of: (a) contacting particles of a carbon allotrope with a surfactant having an organic portion and an anionic portion wherein the anionic portion is bonded to the organic portion and wherein the anionic portion is ionically associated with a transition metal cation and/or a post-transition metal cation and/or mixtures to produce metal ion modified particles; (b) mixing the metal ion modified particles with a metal or a mixture of metals to form a mixture thereof; and (c) processing the mixture to form a metal composite comprising particles of the carbon allotrope dispersed in the metal or mixture of metals.

A method of forming an aircraft component includes providing an aluminum alloy. The method further includes mixing a shape memory alloy (SMA) with the aluminum alloy to form a combination of the SMA and the aluminum alloy. The method further includes forming the aircraft component with the combination of the SMA and the aluminum alloy.

The present disclosure discloses a continuous electrophoretic deposition modified carbon fiber reinforced multi-matrix composite and a preparation method thereof, composing of a carbon fiber with a volume fraction of 30-55%, an inorganic powder with a volume fraction of 3-25% and a matrix with a volume fraction of 20-67%, wherein the inorganic powder is wrapped on the surface of the carbon fiber filament or embedded in the carbon fiber bundle, and the concentration gradually decreases from the fiber filament to the surface of the fiber bundle. The preparation method of the composite is as follows: (1) pretreating the carbon fibers; (2) preparing a slurry of the inorganic powder; (3) widening the pretreated carbon fiber to form a carbon fiber strip, and then carrying out electrophoretic deposition on the inorganic powders; (4) preparing a preform from the deposited carbon fibers; and (5) compounding a matrix in the preform.

The present disclosure discloses a continuous electrophoretic deposition modified carbon fiber reinforced multi-matrix composite and a preparation method thereof, composing of a carbon fiber with a volume fraction of 30-55%, an inorganic powder with a volume fraction of 3-25% and a matrix with a volume fraction of 20-67%, wherein the inorganic powder is wrapped on the surface of the carbon fiber filament or embedded in the carbon fiber bundle, and the concentration gradually decreases from the fiber filament to the surface of the fiber bundle. The preparation method of the composite is as follows: (1) pretreating the carbon fibers; (2) preparing a slurry of the inorganic powder; (3) widening the pretreated carbon fiber to form a carbon fiber strip, and then carrying out electrophoretic deposition on the inorganic powders; (4) preparing a preform from the deposited carbon fibers; and (5) compounding a matrix in the preform.

A composite material contains a metallic phase, a non-metallic phase and a specific element. At least 90 mass % of the metallic phase is composed of at least one selected from the group consisting of Ag and Cu. The non-metallic phase includes a coated core material. The coated core material includes a core material and a carbide layer that covers at least a part of a surface of the core material. The core material contains at least one carbon-containing material selected from the group consisting of diamond, graphite, carbon fibers, and silicon carbide. The carbide layer contains a carbide of at least one metal element selected from the group consisting of Ti, Cr, Ta, and V. The specific element is at least one selected from the group consisting of Y and Mg. A total content of the specific element is 0.0004 mass % to 1.3 mass %.

A composite material contains a metallic phase, a non-metallic phase and a specific element. At least 90 mass % of the metallic phase is composed of at least one selected from the group consisting of Ag and Cu. The non-metallic phase includes a coated core material. The coated core material includes a core material and a carbide layer that covers at least a part of a surface of the core material. The core material contains at least one carbon-containing material selected from the group consisting of diamond, graphite, carbon fibers, and silicon carbide. The carbide layer contains a carbide of at least one metal element selected from the group consisting of Ti, Cr, Ta, and V. The specific element is at least one selected from the group consisting of Y and Mg. A total content of the specific element is 0.0004 mass % to 1.3 mass %.

A support tooling for porous preforms intended to be infiltrated by a molten metal includes a rack including two suspension bars each extending longitudinally along a first direction, the suspension bars being held spaced apart from one another along a second direction perpendicular to the first direction; a plurality or porous preform supports removably mounted on the suspension bars, each support including a first portion connected to one of the suspension bars by a connection sliding along a third direction perpendicular to the first and second directions and a second portion extending from the first portion and including support elements which are able to hold a porous preform by point or linear contact.

A vane arc segment includes an airfoil fairing that has a fairing platform and an airfoil section that extends there from. The fairing platform defines a gaspath side and a non-gaspath side and includes a flange that projects from the non-gaspath side. The airfoil fairing is formed of a fiber-reinforced composite that includes a wishbone-shaped fiber layer structure that has first and second arms that converge and merge into a single leg. The first and second arms are formed of fiber plies comprised of a network of fiber tows. The single leg comprises fiber tows from each of the fiber plies of the first and second arms. The fiber tows of the first arm are interwoven in the single leg with the fiber tows of the second arm. The first arm, the second arm, or the single leg forms at least a portion of the flange.

The product of and a process for forming a metal composite comprising particles of a carbon allotrope dispersed in a metal or a mixture of metals. In one embodiment, the process includes the steps of: (a) contacting particles of a carbon allotrope with surfactant having an organic portion and an anionic portion wherein the anionic portion is bonded to the organic portion and wherein the anionic portion is ionically associated with a cation so that the organic portion of the surfactant is adsorbed onto the surface of the particles of the carbon allotrope to produce surfactant modified particles; (b) contacting the surfactant modified particles with a transition metal cation and/or a post-transition metal cation and/or mixtures thereof to replace some or all of the cations of the surfactant modified particles with a transition metal cation and/or a post-transition metal cation and/or mixtures thereof to produce metal ion modified particles; (c) mixing the metal ion modified particles with a metal or a mixture of metals to form a mixture thereof; and (d) processing the mixture to form a metal composite comprising particles of the carbon allotrope dispersed in the metal or mixture of metal. In another embodiment the process includes the steps of: (a) contacting particles of a carbon allotrope with a surfactant having an organic portion and an anionic portion wherein the anionic portion is bonded to the organic portion and wherein the anionic portion is ionically associated with a transition metal cation and/or a post-transition metal cation and/or mixtures to produce metal ion modified particles; (b) mixing the metal ion modified particles with a metal or a mixture of metals to form a mixture thereof; and (c) processing the mixture to form a metal composite comprising particles of the carbon allotrope dispersed in the metal or mixture of metals.