Architected cellular ceramics with tailored stiffness via direct foam writing

Significance Direct foam writing enables the construction of architected cellular ceramics with tailored microstructure, geometry, and mechanical properties. These bioinspired, hierarchical structures exhibit different modes of deformation as well as exceptional specific stiffness. This work represents an important step toward the scalable fabrication of architected porous materials, which may find potential application as lightweight structures, thermal insulation, tissue scaffolds, catalyst supports, and electrodes.