Thermal Shock Resistance of Laminated ZrB2–SiC Ceramic Evaluated by Indentation Technique |
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| Authors: | Peng Zhou Zhi Wang Youhua Fan Ping Hu Xinghong Zhang Wenbo Han |
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| Affiliation: | 1. School of Natural Sciences and Humanities, Harbin Institute of Technology Shenzhen Graduate School, Shenzhen, China;2. State Key Laboratory of Structural Analysis for Industrial Equipment, Faculty of Vehicle Engineering and Mechanics, School of Aeronautics and Astronautics, Dalian University of Technology, Dalian, China;3. Center for Composite Materials, Harbin Institute of Technology, Harbin, China |
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| Abstract: | In this work, the thermal shock behavior of laminated ZrB2–SiC ceramic has been evaluated using indentation‐quench method based on propagation of Vickers cracks and compared with the monolithic ZrB2–SiC ceramic. The results showed that the laminated ZrB2–SiC ceramic exhibited better resistance to crack propagation and thermal shock under water quenching condition, and the critical temperature difference (ΔTc) of laminated ZrB2–SiC ceramic (ΔTc ≈ 590°C) was much higher than that of monolithic ceramic (ΔTc ≈ 290°C). The significant improvement in thermal shock resistance was attributed to residual stresses enhancing the resistance to crack growth during thermal shock loading. |
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