The Limitation of Evaluating Thermal Shock Resistance of Al₂O₃-SiO₂ Refractory by Measuring Strength Loss Rate

Abstract:

This paper deeply studied the limitation of evaluating the thermal shock resistance of Al₂O₃-SiO2 refractory by measuring Strength Loss Rate (SLR). By means of supersonic, X-ray diffraction (XRD), the results were drawn as followed.1)After the thermal shock experiment for mullite based A-S refractory, which were composed by mullite and corundum, the supersonic velocity slowed down as it going through the sample while the cold crushing strength abnormally increased at initial state.2) The strength increased remarkably with the ascending of mullite fraction.3)It is inadequate to evaluate the thermal shock resistance of mullite based A-S refractory by strength loss rate.

• Periodical: Advanced Materials Research (Volumes 295-297)
• Pages: 2309-2313
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.295-297.2309
• Online since: July 2011
• Authors: Xin Liu, Dian Li Qu, Zhi Jian Li
• Keywords: Strength Loss Rate, Supersonic Testing, Test and Evaluation, Thermal Shock Resistance

References

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