Calcined aluminafor high performance refractory material,which is generally used in shaped refractory products such as skateboard, three large pieces, corundum brick or used in unshaped refractory materials with alumina.
Calcined alumina for refractory materials
High-temperature calcined alumina powder takes industrial aluminum hydroxide or industrial alumina as raw material,which is calcined at appropriate temperature into α-type alumina product with stable crystal form; Using calcined α-type alumina as raw material, it is made by ball milling of alumina micropowder.
High temperature Alpha-calcined alumina raw powder - micro powder (low nano, medium nano, ordinary), uniform particle size, easy to disperse, strong fluidity, good sintering performance.
High temperature Alpha-calcined alumina raw powder is the basic raw material for the production of heat-resistant and corrosion-resistant products, such as high-alumina refractory materials, refractory bricks, advanced ceramic products, electric porcelain devices, steel charge, high temperature friction materials and raw materials in polished wear-resistant products.
Physical And Chemical Properties:
Typical Value | CL-800SG | BM-9FG | BM+1 |
Na2O (%) | 0.06 | 0.12 | 0.04 |
Fe2O3 (%) | 0.02 | 0.04 | 0.04 |
MgO(%) | 0.01 | 0.02 | 0.01 |
SiO2(%) | 0.04 | 0.06 | 0.05 |
CaO (%) | 0.02 | 0.02 | 0.02 |
Specific Surface Area /BET(m2/g) | 0.85 | 0.93 | 1.28 |
D50 Malvern(μm) | 4.8 | 5.2 | 3.7 |
D90 Malvern(μm) | 11.3 | 22.7 | 9.2 |
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