Research Progress on the Interface Regulation and Properties of Carbon Nanotube Reinforced Al Matrix Composites
Author of the article:YU Weilin, SUN Tianyu, GUO Baisong
Author's Workplace：Institute of Advanced Wear and Functional Materials, Jinan University
Key Words：aluminum matrix composites; carbon nanotubes; interface regulation; performance
Abstract：Carbon nanotube reinforced aluminum matrix composites have attracted special attention due to their lightweight, high strength, and high corrosion resistance, and are expected to become a new generation of structure-function integrated composites. The formation of a good bonding interface between carbon nanotubes and the aluminum matrix is the key to making full use of the excellent intrinsic properties of carbon nanotubes to prepare carbon nanotube reinforced aluminum matrix composites with high performance. However, there are significant differences in the physical and chemical properties between carbon nanotubes and the aluminum matrix, and their interface bonding is weak. How to improve the interface bonding strength between carbon nanotubes and aluminum matrix through interface structure regulation has always been the research focus of researchers in this field at home and abroad, and significant progress has been made thus far. Accordingly, the regulation methods for the interface structure between carbon nanotubes and the aluminum matrix are reviewed in this paper. In particular, the main interface control methods such as in situ interface reaction, coating carbide/oxide on the surface of carbon nanotubes, coating metal on the surface of carbon nanotubes, and carbon nanotube oxidation treatment are discussed in detail. The characteristics of different interface structure regulation methods and their effects on the interface bonding state and properties of composites are analysed, and the existing problems of these interface regulation methods are summarized. Finally, this paper closes by looking ahead to the development direction of interface structure regulation between carbon nanotubes and the aluminum matrix in aluminum or aluminum alloy.
