Abstract
Alumina is very susceptible to thermal shock which often leads to catastrophic failure. The addition of tape-cast nickel layers to laminated alumina can increase its tolerance to damage induced during thermal shock. The fracture behaviour after thermal shock of laminated composites showed non-catastrophic failure during loading at room temperature. The retained strength of the laminates was determined for a wide range of quenching-temperature differences (δT= 150–1200‡C). The retained strength and critical quenching-temperature difference, δT c, of the laminated composites were a significant improvement over the values for the respective monolithic alumina. This improvement in behaviour can be related to the compressive residual stress in the alumina layers and ductile-layer crack blunting.
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Chen, Z., Mecholsky, J.J. Damage-tolerant laminated composites in thermal shock. J Mater Sci 28, 6365–6370 (1993). https://doi.org/10.1007/BF01352199
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DOI: https://doi.org/10.1007/BF01352199