Patent ID: 8347944
Filing Date: 2013-01-08
Classification: B02C,B21C,B22D,B22F,B82Y,C01B,C22C

Abstract:
1. A method of forming nano-composite copper wire, comprising: pre-loading carbon nanotubes into at least one of a plurality of channels running a length of a cartridge; placing the pre-loaded cartridge in a piston chamber of a die-casting machine; drawing air out of the piston chamber to create a vacuum therein; filling the piston chamber with molten metal and soaking the pre-loaded cartridge for a predetermined time, wherein the molten metal fills cartridge channels that are not pre-loaded with carbon nanotubes; applying pressure via the piston to eject the carbon nanotubes and molten metal from the cartridge channels as a nano-composite mixture and inject the nano-composite mixture into a rod-shaped die cavity through a nozzle that draws down the nano-composite mixture to a first predetermined diameter that is not greater than a diameter of the die cavity; and cooling the nano-composite mixture to form a solid nano-composite rod having the first predetermined diameter, wherein the carbon nanotubes are aligned in a non-random manner in the nano-composite rod.