... ,They possess high refractory (up to 2200°C ) ,2,good corrosion resistant to acids and alkalis ,3,good thermal shock resistance.4 ... metallurgy, laser crystals, quartz glass, electronic industry,6,and continuous casting.Name\ItemZrO2+CaO%ZrO2+Y2O3%Fe2O3%SiO2%Bulk densityg/cm3Apparentporosity ...