三维打印制备MAX基复相陶瓷研究进展

本文综述了三维打印(Three-Dimensional Printing,3DP)结合反应熔体渗透(Reactive Melt Infiltration,RMI)技术制备MAX基复相陶瓷的研究进展。在致密MAX基复相陶瓷的制备过程中,3DP技术的作用主要体现在两方面:一方面是实现预制体的成型,另一方面是通过孔隙结构和成分的设计控制所制备材料的微结构。3DP所制备的预制体呈现为典型的双孔径分布模式,有利于RMI的进行。通过3DP同RMI结合能够实现致密MAX基复相陶瓷的近尺寸成型,同时通过对初始原料、渗透熔体以及渗透温度等参数的优化能够实现微结构、力学性能以及电磁屏蔽性能的调控。

Research Progress on MAX-Phase-Based Ceramics Fabricated by Three-Dimensional Printing

This paper reviews the progress of MAX-phase-based ceramics fabricated by a combined process of three-dimensional printing (3DP) and reactive melt infiltration (RMI). For the preparation of dense MAX-phase-based ceramics, 3DP plays two roles: the first one is to realize the formation of preforms, the second one is to optimize the microstructure by the design of pore structure and preform composition. The as-prepared preforms have a typical bimodal pore size distribution, which is beneficial for the RMI. The combination of 3DP and RMI can realize the near-net-shape fabrication of dense MAX-phase-based ceramics, and the microstructure, mechanical behavior and electromagnetic shielding properties can be tailored by adjusting the initial raw material in the preform, the melt and the infiltration temperature.