Abstract
Experimental analysis of the cracking in the ceramics subsequent to water quenching have been conducted to clarify the uncertainties of cracking in the ceramics when subjected to thermal shock. The results here indicate that at the critical point of quench temperature, the crack density and the depth reached the minimum and the maximum limits, respectively. On increase of the quench temperature, the crack density increased rapidly before reaching its saturation point, while the crack depth initially decreased rapidly and then increased gradually before reaching its saturation point.
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Salvini V R, Pandolfelli V C, Bradt R C. Extension of Hasselman’s thermal shock theory for crack/microstructure interactions in refractories. Ceram Int, 2012, 38(7): 5369–5375
Pompe W E. Thermal shock behavior of ceramic materials-modeling and measurement. In: Schneider G A, Petzow G, eds. Thermal Shock and Thermal Fatigue Behavior of Advanced Ceramics. Netherlands: Kluwer Academic Publishers, 1993. 3–14
Song F, Meng S H, Xu X H, et al. Enhanced thermal shock resistance of ceramic through biomimetically inspired nanofins. Phys Rev Lett, 2010, 104(12): 125502
Hasselman D P H. Unified theory of thermal shock fracture initiation and crack propagation in brittle ceramics. J Am Ceram Soc, 1969, 52(11): 600–604
Wang B L, Han J C. Fracture mechanics associated with non-classical heat conduction in thermoelastic media. Sci China-Phys Mech Astron, 2012, 55: 493–504
Bertsch B E, Larson D R, Hasselman D P H. Effect of crack density on strength loss of polycrystalline Al2O3 subjected to severe thermal shock. J Am Ceram Soc, 1974, 57(5): 235–236
Davidge R W, Tappin G. Thermal shock and fracture in ceramics. Trans Brit Ceram Soc, 1967, 66(8): 405–422
Bahr H A, Weiss H J, Maschke H G, et al. Multiple crack propagation in a strip caused by thermal shock. Theor Appl Fract Mech, 1988, 10(3): 219–226
Shao Y F, Zhang Y, Xu X H, et al. Effect of crack pattern on the residual strength of ceramics after quenching. J Am Ceram Soc, 2011, 94(9): 2804–2807
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Xu, X., Tian, C., Sheng, S. et al. Characterization of thermal-shock cracks in ceramic bars. Sci. China Phys. Mech. Astron. 57, 2205–2208 (2014). https://doi.org/10.1007/s11433-014-5562-6
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DOI: https://doi.org/10.1007/s11433-014-5562-6