Melt-cast refractory, used in steel and glass manufacture, is based on zirconium dioxide crystals stabilized by magnesium oxide and surrounded by magnesium oxide crystal phase

摘要

The zirconium dioxide crystals are stabilized by magnesium oxide. They are surrounded by at least one magnesium oxide crystal phase. This is forsterite, enstatite, cordierite or spinell. Based on the total mass, the percentage of magnesium oxide-containing crystal phases is 0.5-10 wt%, 1-8 wt% or 1-6 wt%. The corresponding percentage of zirconium oxide is 80-98 wt% or 90-96 wt%. The percentage of magnesium oxide is 1-10 wt% or 2-6 wt%.