Preparation process and new progress in carbon fiber reinforced magnesium matrix composites

Abstract

The carbon fiber reinforced magnesium matrix (Cf/Mg) composites are considered as the most promising structural materials with great potential in both aerospace and automotive applications, which have high specific strength, high specific stiffness, excellent thermal conductivity, great electrical conductivity and good damping properties, as well as close to zero thermal expansion coefficient and good dimensional stability. In the present review, the craft principles and characteristics, as well as the current development status and the key technical problems of powder metallurgy, diffusion bonding, squeeze casting, etc that can be used to prepare Cf/Mg composites are discussed deeply. Then the new progresses made in the preparation of Cf/Mg composites in recent years are hackled. Furthermore, engineering application cases of Cf/Mg composite that have a significant promotion effect and potential application prospects in the fields of national defense and national economy are introduced. Additionally, the facing challenges of Cf/Mg composite are analyzed, and the future development directions are prospected.