The invention provides a green metal composite material, which is prepared by the following method: Provide Mg, Mo, Al, Ni, and Ti powders; weigh the Mg, Mo, Al, Ni, and Ti powders; and perform the first ball milling on the Mg, Mo, Al, Ni, and Ti powders; perform vacuum melting to obtain a Mg-based alloy ingots; crush the Mg-based alloy ingots; provide carbon nano tubes and graphene powders; and perform surface modification; mix well the crushed Mg-based alloy ingots and the surface modified carbon nano tubes and the graphene powders, and perform a second ball milling to obtain a second mixed powder; then perform a first heat treatment to obtain a third mixed powder, then perform a second hot pressed sintering. The process technology of this invention solves the problems of poor compatibility, easy to be segregated and unstable property of the non-metallic particles and metallic matrix.

A metal matrix composite (MMC) material composition of nickel alloy and carbon nanotubes is provided. The material composition includes powdered granules of the nickel alloy; and a plurality of the nanotubes. The granules and nanotubes are milled in a hopper and sintered by laser to form the MMC. A method for producing the MMC material composition is also provided. The method includes inserting powdered granules of the nickel alloy and the nanotubes into a hopper; rotating the hopper at 450 rpm for 120 min to mill the granules and the nanotubes into a mixture; and sintering said mixture by a laser at 195 W and 1100 mm/s scan speed.

A component for a gas turbine engine can be made via additive manufacturing. During the additive manufacturing process a powder can be used that comprises a superalloy material (12) and carbon nanostructures (14a, 14b). Components made using the powder can have preferred characteristics at certain locations through the use of the carbon nanostructure based additive manufacturing powder.

Disclosed are a method of manufacturing an aluminum-based clad heat sink, and an aluminum-based clad heat sink manufactured by the method. The method includes ball-milling (i) aluminum or aluminum alloy powder and (ii) carbon nanotubes (CNT) to prepare a composite powder, preparing a multi-layered billet using the composite billet, and directly extruding the multi-layered billet using an extrusion die to produce a heat sink. The method has an advantage of producing a light high-strength high-conductivity aluminum-based clad heat sink having an competitive advantage in terms of price by using direct extrusion that is suitable for mass production due to its simplicity in process procedure and equipment required.

Disclosed are a method of manufacturing an aluminum alloy clad section, and an aluminum alloy clad section manufactured by the method. The method includes preparing a composite powder by ball-milling aluminum powder and carbon nanotubes, preparing a billet from the composite powder, and subjecting the billet to direct extrusion using an extrusion die. The method is simple in procedure and uses simple equipment because it is based on direct extrusion which is suitable for mass production. Thus, the method is capable of producing a lightweight high-strength functional aluminum alloy clad section having a competitive advantage in terms of price over conventional aluminum alloy clad sections.

An electrically conductive, flexible, strain resilient product is produced by mixing metal coated carbon nanotube networks with a liquid polymeric resin to produce a liquid mixture, and the mixture is cured to produce the product. The networks may include welded junctions between nanotubes formed by depositing and melting metal nanoparticles on the nanotubes to form the metal coating. After the mixing step the liquid mixture may be deposited on a flexible substrate in the form of an electrical circuit. The mixing step may further include mixing the composite with a volatile solvent to produce a selected viscosity. Then, a three-dimensional printer may be used to print the product, such as an electrical circuit, on a substrate. The product is cured in an atmosphere that absorbs the solvent. The conductivity of the mixture may be adjusted by adjusting the weight percentage of the metal coated carbon nanotube networks from 50% to 90%, but a preferred range is between 75% and 85%.

In some embodiments, a method is provided that includes (1) providing aluminum; (2) providing carbon nanotube material; (3) combining the aluminum and carbon nanotube material to form a current-carrying, aluminum-carbon-nanotube component of an electrical switch device; and (4) assembling the electrical switch device using the aluminum-carbon-nanotube component. The aluminum-carbon-nanotube component is formed so as to have at least one of lower electrical resistivity and greater thermal conductivity than a component formed of aluminum without carbon nanotube material. Numerous other embodiments are provided.

The invention provides a green metal composite material, which is prepared by the following method: Provide Mg, Mo, Al, Ni, and Ti powders; weigh the Mg, Mo, Al, Ni, and Ti powders; and perform the first ball milling on the Mg, Mo, Al, Ni, and Ti powders; perform vacuum melting to obtain a Mg-based alloy ingots; crush the Mg-based alloy ingots; provide carbon nano tubes and graphene powders; and perform surface modification; mix well the crushed Mg-based alloy ingots and the surface modified carbon nano tubes and the graphene powders, and perform a second ball milling to obtain a second mixed powder; then perform a first heat treatment to obtain a third mixed powder, then perform a second hot pressed sintering. The process technology of this invention solves the problems of poor compatibility, easy to be segregated and unstable property of the non-metallic particles and metallic matrix.

A carbon nanotube composite material includes a metallic base composed of a polycrystalline substance in which a plurality of rod-shaped metallic crystal grains are oriented in a same direction and a carbon nanotube conductive path, which is composed of a carbon nanotube, and forms a conductive path allowing electricity to conduct therethrough in a longitudinal direction of the metallic base by being present in a part of grain boundaries between the rod-shaped metallic crystal grains on a transverse plane of the metallic base, and being present along the longitudinal direction of the metallic base.

The present disclosure relates to an electrical contact material that is a contact element that plays a role of blocking or allowing the flow of an electric circuit to pass through, and relates to an electrical contact composite material that satisfies the physical properties required to use as an electrical contact while reducing Ag content, and a method for manufacturing the same.