Statistical data on thermal expansion in dinas refractories for coking ovens

Conclusions

Statistical data have been obtained on the temperature dependence of the thermal expansion for dinas refractories for coking ovens in the range from 20 to 1400°C. The temperature coefficient of linear expansion does not vary monotonically as the temperature rises and has peaks near the temperatures of the phase transformations in tridimite, cristobalite, and quartz, at which the values attained are ≳50·10⁻⁶, ≳80·10⁻⁶ and 10·10⁻⁶ K⁻¹ correspondingly. The averaged TCLE should be considered as standard reference ones. The thermalexpansion curves for dinas brick show hysteresis due to the phase transitions in silica.