Article ID Journal Published Year Pages File Type
1609232 Journal of Alloys and Compounds 2015 6 Pages PDF
Abstract
Fully dense laminated ZrB2-SiC/BN ceramics were successfully prepared by tape casting and hot pressing, and the mechanical and ablation properties were investigated in detail. Compared with monolithic ZrB2-SiC ceramics, the flexural strength of laminated ZrB2-SiC/BN ceramics slightly decreased due to the introduction of the weak BN interlayer. However, the fracture toughness of laminated ZrB2-SiC/BN ceramics was significantly improved. The remarkable improvement of fracture toughness was mainly attributed to crack deflection and crack bifurcation. Under oxyacetylene torch environment, the laminated ZrB2-SiC/BN ceramics exhibited an excellent configurational stability compared with monolithic ZrB2-SiC ceramics due to the introduction of weak interlayer.
Related Topics
Physical Sciences and Engineering Materials Science Metals and Alloys
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