YE Changshou¹, MENG Fantao², PAN Guangshen³

(Shandong University of Technology, Zibo 255049, Shandong, China)

Abstract: The fracture toughness of biomimetic laminated ZrB₂-SiC ultra-high temperature ceramics can be improved greatly due to its unique layered structure. This structure makes the material quasi-plastic by changing its fracture behavior from brittle to secondary and even multiple-stepped cleavage, remarkably different from the catastrophic fracture of monolithic ZrB₂ ceramics. This paper introduces the design principle, preparing technique and current status of the biomimetic ZrB₂-SiC ultra-high temperature ceramics. It also points out the developing direction of this material in future.

Key words: biomimetic; laminated; ZrB₂-SiC; ultra-high temperature ceramics