▎ 摘　　要

NOVELTY - Preparation of graphene oxide/ titanium carbon nitride-doped tungsten copper composite material involves (1) weighing copper sulfate pentahydrate, potassium sodium tartrate tetrahydrate, disodium edentate, polyethylene glycol, 2,2'-bipyridine, sodium hydroxide particles and formaldehyde to prepare plating solution, washing tungsten powder in sodium hydroxide solution and hydrochloric acid solution, washing reacted powder with water to obtain copper-plated tungsten powder, (2) weighing copper powder, copper-plated tungsten powder, nickel powder, titanium carbon nitride powder and graphene oxide powder in a certain proportion, (3) putting all the powders in a sealed tank and mixing with a planetary ball mill for 10-20 hours to obtain a composite powder with uniform composition, (4) filling composite powder into a graphite mold and placing in a vacuum sintering furnace to sinter to prepare a tungsten copper composite material. USE - Preparation of graphene oxide/ titanium carbon nitride-doped tungsten copper composite material used in metallurgy, military and aerospace industry. ADVANTAGE - The composite material has high hardness, high melting point of particles, and can play the role of anti-wear and wear-resistant, improves wear resistance of tungsten-copper alloy, promotes densification sintering of composite material, reinforcing material matrix strength, improves the antireflective performance of material, reduces the friction coefficient, and improves the service life. DETAILED DESCRIPTION - Preparation of graphene oxide/ titanium carbon nitride-doped tungsten copper composite material involves (1) quantitatively weighing copper sulfate pentahydrate, potassium sodium tartrate tetrahydrate, disodium edetate, polyethylene glycol, 2,2'-bipyridine, sodium hydroxide particles and formaldehyde to prepare the plating solution, washing quantitative tungsten powder in sodium hydroxide solution and hydrochloric acid solution respectively, and adding to the plating solution, keeping at a constant temperature of 55degrees Celsius and stirring magnetically, continuously adding sodium hydroxide to maintain the pH value of 11-13 during the reaction, washing the reacted powder with water until it is neutral after the plating solution turns from blue to colorless, and placing in a drying oven at 50degrees Celsius for 6 hours and drying to obtain copper-plated tungsten powder, (2) weighing copper powder, copper-plated tungsten powder, nickel powder, titanium carbon nitride powder and graphene oxide powder in a certain proportion, (3) putting all the powders in a sealed tank and mixing with a planetary ball mill for 10-20 hours to obtain a composite powder with uniform composition, (4) filling composite powder into a graphite mold and placing in a vacuum sintering furnace to sinter to prepare a tungsten copper composite material, introducing hydrogen gas to prevent copper in the composite material from volatilizing too much in the vacuum when the temperature is maintained, taking out the mold when the furnace temperature drops to room temperature. The holding temperature is 1000-1100degrees Celsius, the holding time is 5-7 minutes, and the pressure is 40MPa on the composite powder during the holding time.