Multifunctional 3D‐Printed Cellular MAX‐Phase Architectures

Abstract The development of porous MAX‐phase structures from computer‐aided design models and 3D printing strategies is of great interest for the fabricating of cellular parts with geometric and material complexities for advanced technological applications. This is reinforced by the joining of the outstanding properties of MAX phases with the benefits of creating lighter materials with a higher surface area. Here, the additive manufacturing of 3D cellular Cr₂AlC MAX‐phase architectures using a direct ink writing technique from concentrated MAX aqueous‐based inks is presented. These architectures exhibit multifunctional properties; in particular, high strength and good mechanical cycling behavior, excellent electrical conductivity, tailored heat dissipation, and good thermal cycling resistance, a blend that widens the potential engineering applications of these MAX phases through an innovative approach.