What is Sintered Mullite?

High-purity sintered mullite is an advanced refractory raw material based on the Al₂O₃–SiO₂ system. Produced at very high temperatures from carefully selected alumina-rich raw materials, it offers exceptional thermal stability, chemical resistance, and structural integrity. It is widely used in the production of high-grade refractory bricks, monolithic castables, and precision casting materials.

Material Characteristics

• High mullite crystal content with uniform microstructure
• Excellent thermal shock resistance due to low thermal expansion
• Low high-temperature creep for improved structural stability
• High bulk density and low porosity
• Strong chemical corrosion resistance in harsh environments

Typical Applications

• High-grade refractory bricks and castables
• Kiln furniture and furnace linings
• Investment casting and foundry molds
• Ceramic and high-temperature industrial components