Bioinspired tough and strong ZrB2-SiCw/Ti–Nb–Ti hybrid composites with a hierarchical ceramic-metal architecture
Source abstract
Abstract
Abstract Triple-layered Ti–Nb–Ti foils were introduced into ZrB2-based ceramics to form heterogeneous ceramic–metal layered composites. Following spark plasma sintering and mechanical processing, the fracture toughness of laminated ZrB2-SiCw/Ti–Nb–Ti ceramics (15.18 MPa m1/2) was significantly improved in comparasion to monolithic ZrB2-SiCw ceramics (7.33 MPa m1/2). In situ formation of TiB2 and (Ti, Nb)C whiskers alleviated interfacial residual stress and improved interfacial bonding strength. Plastic deformation (such as slip, dimple, and tear-ridge) arising from the existence of a ductile Ti–Nb solid solution ((Ti, Nb)ss), Ti, and Nb was observed in the fracture surface of the interlayer, leading to the improvement of toughness. Moreover, an increase in R-curve behavior indicated a lower sensitivity to cracks in ceramics with metallic interlayers compared to monolithic ceramics.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Advanced materials and composites · Advanced ceramic materials synthesis · Bone Tissue Engineering Materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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