Research on powder metallurgy process for preparing aluminum matrix boron carbide composites

The preparation processes of aluminum matrix boron carbide composites made by powder metallurgy are summarized, those mainly include mixing, pressing, sintering, deformation, et al. The main performance of Al-B₄C composites and its in fluence factors are introduced. The uniformity, relative density and mechanical properties of the material are studied. The production and application of Al-B₄C composites are also introduced. The characteristics of several types of Al-B₄C composites are described. The process optimization scheme is set forth to produce large size, high quality and low cost Al-B₄C composites by powder metallurgy.China is expected to become one of the production and research centers of Al-B₄C composites, with the development of nuclear power and other related industries.