Synthetic cordierite brick has excellent thermal properties. On the air, however, leads to its transformation into a muscovite, biotite and chlorite. An alternative to the natural cordierite is cordierite ceramics - synthetic cordierite. Material containing over 10% of MgO and over 32% of Al2O3 is typical for its low thermal expansion coefficient, hardness and stability. Stable α-cordierite with a melting point at 1435 °C is produced by decay of magnesium and bauxite materials during firing near 1400 °C.
2.Small volume density.
3.Good insulation effect.
4.High mechanical intensity.
5.Small thermal conductivity.
- For the production of refractories
- In the construction of furnaces / kiln cars
- In the manufacture of cutting tools for burning fittings
- By the construction of chimneys, stoves
- In the ceramic industry
- In the electrotechnical industry
Physical and chemical index:
Synthetic Cordierite Brick
Item KRCG KRCP KRCM Content of main phase ＞92 ＞92 ＞95 Al2O3 32-34 35-37 32-34 SiO2 46-48 45-47 46-48 MgO 43813 43783 43813 Fe2O3 ＜0.5 ＜1.2 ＜0.5 Bulk Density（g/cm3） 1.85 1.97 2.08 thermal expansion under 20℃-1000℃（m/K） 1.6x10 -6 1.8x10 -6 1.5x10 -6 Refractoriness SK14 SK13 SK14 Color White Yellow White