Research Progress in Preparation and Properties of High-performance Copper-Tungsten Composites

Author of the article:WANG Faheng 1 , ZHANG Yuan 2 , LIU Yaxiong 1 , LIU Feng 1,3

Author's Workplace：1. Jihua Laboratory, Foshan 528200, China; 2. CNOOC Safety Technology Services Co., Ltd., Tianjin 300450, China; 3. School of Mechanical Engineering, Liaoning Petrochemical University, Fushun 113001, China

Key Words： tungsten-copper composite; high performance; powder metallurgy; mechanical properties; conductivity

Abstract： Tungsten-copper (W-Cu) composites have excellent physical and mechanical properties, such as good electrical
and thermal conductivity, low thermal expansion, high hardness and strength, and are widely used in electric power,
electronics, nuclear power industry, military and aerospace industries. The melting points of W and Cu are quite different
and do not react with each other, so there is no intermediate phase precipitation. Therefore, powder metallurgy is the
traditional method for preparing W-Cu composites. In recent years, some new methods have been applied to prepare W-Cu
composites in order to obtain higher performance composites. In this paper, the preparation technology, microstructure,
properties and main applications of W-Cu composites were reviewed, and the advantages and disadvantages of existing
processes were discussed. In view of mechanical properties and electrical conductivity, the characteristics of different
preparation processes of composites were analyzed. The future development of W-Cu composites is prospected.