Effect of Calcination Temperature on Properties of Dolomite Refractory

In this study, the effect of calcination temperature on the behavior of dolomite refractory was investigated. Dolomite powder was calcined at temperatures of ۱۰۰۰, ۱۲۰۰, ۱۴۰۰, and ۱۶۰۰°C. The samples were prepared using the pressing method, and then sintered at ۱۷۰۰°C. XRD results of the sintered samples indicated that as the calcination temperature increased, the amount of CaO phase decreased, while the amount of Ca(OH)۲ phase increased. The microstructure of the sintered samples also showed a significant difference in morphology. As the calcination temperature increased, the resulting samples exhibited lower cold crushing strength and a higher degree of hydration.

کلیدواژه ها:

Dolomite refractory ، Calcination temperature ، Compressive strength ، Hydration resistance