
Mullite Polylightweight Insulation Bricks for Insulation Bricks in High-Temperature Kilns Over 1300°C, Directly Contacting Flames
Mullite insulation bricks are high-alumina refractory materials with mullite (Al₂O₃·2SiO₂) as the primary crystalline phase. The alumina content typically ranges from 50% to 60%. In addition to mullite, those with lower alumina content also contain small amounts of glass and…