How to improve the performance of lightweight mullite insulation bricks？

Lightweight mullite insulating bricks have a high softening point under load, low porosity and good corrosion resistance. These are high quality insulating materials. Mullite insulating bricks with different physical and chemical properties have different insulating properties. How to improve the performance of lightweight mullite bricks?

What factors influence the performance characteristics of lightweight mullite insulating bricks?

Mullite insulation bricks usually contain oxide impurities, such as TiO2, Fe2O3, CaO, MgO, K2O and Na2O. Impurity content in mullite, obtained from natural raw materials, higher, than in synthetic raw materials. These impurity oxides act as fluxes in mullite, and the influence of different oxide impurities is different. Among them, K2O and Na2O have the greatest influence on the temperature of formation of the liquid phase, and TiO2 has the least effect.

Improves the performance of lightweight mullite insulating bricks

If you want to improve the thermal insulation performance of mullite insulation bricks, you need to control the impurity content. With an increase in Al2O3 content in mullite bricks, the thermal insulation characteristics will increase, but an increase in the content of impurities will reduce the thermal insulation characteristics, This is especially true for K2O content, Na2O and Fe2O3, which is an important indicator for obtaining high-quality lightweight mullite thermal insulation bricks.