Copper-based composite material and preparation method thereof

Abstract

The invention relates to a copper-based composite material and a preparation method thereof, and belongs to the field of metal and composite materials thereof. The copper-based composite material comprises the following components of, in percentage by weight, 3%-18% of W, 0.5%-5% of B4C, and the balance copper. The preparation method comprises the following steps of firstly, selecting high-purity Cu powder, W powder and B4C powder, and weighing the Cu powder, the W powder and the B4C powder by adopting a high-precision balance, and carrying out vacuum ball milling for 2 h-8 h; secondly, filling the mixed powder into a mold made of heat-resistant steel, and then putting the mold into a vacuum hot-press sintering furnace for hot-pressing sintering forming, wherein the sintering temperature is 950 DEG C-1030 DEG C, the sintering pressure is 50 MPa-60 MPa, the heat and pressure preservation time is 1 h-3 h, and the vacuum degree is 10<-3> Pa; finally, carrying out cooling along with the furnace after the sintering is completed. The copper-based composite material preparation method has the advantage of being simple in process, and the prepared copper-based composite material has good comprehensive performance and can be used in strict working conditions of power receiving, abrasion, corrosion and nuclear radiation interaction, thus having a very wide application prospect and popularization value.

Description

technical field

[0001] The invention belongs to the field of metals and composite materials thereof, and in particular relates to a copper-based composite material and a preparation method thereof. Background technique

[0002] Metal copper (Cu) is one of the earliest metals used by humans. It has outstanding characteristics such as high thermal conductivity and electrical conductivity, good ductility, good corrosion resistance, and excellent formability, so it is widely used in cables and electrical and electronic components. , military armor-piercing weapons, electromagnetic gun tracks and other fields. However, with the rapid development of science and technology, the use of metal copper is becoming wider and wider, and the requirements for its use are getting higher and higher. A single metal copper has been difficult to meet the development needs of human beings. Under this background, various copper alloys or copper-based composite materials have emerged as the times ...