Conclusions
We established the capacity of a range of ceramics to withstand high rates of thermal stress (frequent heating). Thus, the spalling-resistant quartz ceramics and aluminum titanate with low α values can withstand repeated frequent heating to temperatures above 1400°C, practically close to their fusing temperatures. Nonspalling-resistant materials based on corundum and mullite chamotte, having high α values, withstand frequent heating to much lower temperatures (up to 1200°C). Incorporating into the corundum zircon, aluminum titanate with a reduced α value increases the resistance to frequent heating at higher temperatures (1500°C and above). The increase in the content of Al2O3 in the mullite chamotte increases its capacity for frequent heating.
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Translated from Ogneupory, No. 6, pp. 21–24, June, 1987.
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Baranova, T.F., Anufriev, A.V., Pen'kov, I.I. et al. Evaluating the behavior of some types of ceramics during testing in a stream of high-temperature gas. Refractories 28, 317–320 (1987). https://doi.org/10.1007/BF01399448
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DOI: https://doi.org/10.1007/BF01399448