陶瓷-金属双连续相复合材料的发展现状与未来

Development status and future of ceramic-metal co-continuous composite material

陶瓷-金属双连续相复合材料作为一种采用空间连续网络构型设计的复合材料,具有耐摩擦磨损、抗热震性高、热膨胀系数低等特点,具有广阔的应用前景。其中,多孔陶瓷预制体作为双连续相复合材料中的结构增强相,其本征特性对复合材料的整体性能有重要影响。本文系统分析了现阶段在多孔陶瓷的制备方法与表面改性两个领域内的主要进展,并对陶瓷-金属双连续相复合材料的制备技术与性能研究进行了介绍。最后,展望了陶瓷-金属双连续相复合材料在未来的发展过程中可能会遇到的四大挑战。

As a kind of composite material designed by space continuous network configuration, the ceramic-metal co-continuous composite owns some special characteristics such as the resistance of friction and wear, high thermal shock resistance, low thermal expansion coefficient and so on, which make it has broad application prospects. Inside, the intrinsic properties of porous ceramic preforms as the ceramic reinforcement in the co-continuous composite have important impacts on the overall performance of the composite. In this review, the main progress in the current preparation methods and surface modification of porous ceramics are systematically analyzed,and both the preparation technology and the performance research of ceramic-metal co-continuous composite are summarized. Finally, we outline the four major challenges that may be encountered in the future development of ceramic-metal co-continuous composites.