Bioinspired hierarchical porous ceramics via cryogenic 3D printing: superior energy absorption and strain-rate dependent failure mechanisms

Key Points

• Bioinspired ceramic structures exhibit enhanced energy absorption characteristics, outperforming traditional materials in impact scenarios.
• The peak energy absorption reached 12.5 J/g, showcasing significant improvement over non-porous alternatives in dynamic impacts.
• Evaluation involved cryogenic 3D printing of hierarchical porous ceramics, leveraging unique design to optimize material performance.
• Results highlight potential for advanced protective materials; further testing may validate broader applications across industries.