Zirconia-containing silica microspheres for refractory castables represent a functional, ultra-fine active mineral material specifically developed for high-performance refractory systems. By incorporating stable zirconia (ZrO₂) into high-purity silica microspheres, this product significantly enhances the erosion resistance, thermal shock resistance, and structural density of refractory castables under high-temperature conditions.
In steel smelting, cement kilns, electric furnace systems, and non-ferrous metal industries, zirconia-containing silica micropowder for refractory castables has become a critical additive for improving high-temperature structural stability and extending furnace lining service life.
