A Facile and Versatile Process for Creating Bioinspired Ceramic–Metal Hierarchical Structures
摘要
The orientation and distribution of constituting particles are the fundamentals in the formation of hierarchical structuresHierarchical structures. In this work, theMagnetically assisted slip-casting magnetically assisted slip castingSlip Casting (MASC) process has been explored to obtain complex hierarchical structuresHierarchical structures composed of ceramicsCeramics and metals, combined to get the benefits of both materials. The process employs a slurry containing ceramicCeramics microplatelets and metal flakes, which serve as the fundamental building blocks for creating complex architectures. The quality of the microstructural alignment is significantly influenced by the total solid content in the slurry, 25 vol % total solid concentration is identified as the optimal recipe to control the microstructural alignment. Additionally, 20 µm copper flakes demonstrate superior packing and higher relative density compared to larger copper flakes. The challenge of inhomogeneous phase distribution is also addressed, and MASC is proposed as one of the promising solutions, facilitating both uniform and variable distribution of phases. The fabrication of multi-layered structures and unidirectional layered structures with different material combinations showcases the versatility of the process. Overall, this work highlights the potential of MASC as a facile and versatile technique for the fabrication of hierarchical ceramicCeramics-metal structures, offering new avenues for advanced material design.