A kind of preparation method of oxide ceramic particle reinforced Cu-based composite material

Abstract

The invention relates to an oxide ceramic particle reinforced Cu-based composite material and a preparation method thereof. The invention belongs to the field of composite materials. Aluminum nitrate (or zirconium nitrate), copper nitrate and ammonium metatungstate are used as raw materials, respectively prepared into solutions with a certain concentration and mixed evenly, and a composite powder precursor is prepared by a cyclone spray drying method, and roasted get Al 2 o 3 -WO 3 ‑CuO mixed powder; then Al 2 o 3 -WO 3 ‑CuO is reduced to Al by high-purity hydrogen 2 o 3 Doped with copper-tungsten composite powder, the composite powder is directly sintered by vacuum hot pressing to prepare Al 2 o 3 Ceramic particles reinforced Cu-based composites, in which ZrO can also be used 2 -WO 3 ‑CuO mixed powder to get ZrO 2 , its effect is similar to that of Al 2 o 3 The effect is the same. The process of the present invention is simple, and the prepared Al 2 o 3 The ceramic particle-reinforced Cu-based composite material has uniform composition, fine and uniform grains, extremely low impurity content, and good comprehensive performance indicators. It can be used in harsh working conditions where electricity, high temperature, wear and corrosion interact, and is suitable for large-scale industrial production. It has broad industrial application prospects.

Description

technical field [0001] The invention belongs to the field of metals and composite materials thereof, and in particular relates to a preparation method of oxide ceramic particles reinforced Cu-based composite materials. 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 ...

AI Technical Summary

Problems solved by technology

However, these two preparation methods are difficult to implement in the preparation of high copper content Cu-W alloys

The reason is that, first, it is difficult to form a W skeleton because of the low W content, and second, due to the high Cu content, once a liquid phase sample is formed, it will collapse