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Fused Zirconia mullite

Fused Zirconia-Mullite, Fused Zirconia are highly recommended refractory raw materials.

Refractory Raw Material - Fused Zirconia Mullite,Fused Zirconia

Fused, high purity zirconia-mullite grain is produced by the electric furnace fusion of alumina and zircon sand. During melting, the zircon and alumina react to yield a mixture of mullite and zirconia.

Applications of Fused Zirconia-Mullite

Fused Zirconia-Mullite is used in specialty product applications where a high resistance to environmental corrosion and a low coefficient of thermal expansion are desirable properties. Applications include ceramic pressure casting tubes and refractory shapes requiring resistance to molten slag and molten glass.

Contact KT refractories for Fused Zirconia-Mullite, Fused Zirconia, Fused Mullite, or other refractory raw material to save you both time and money!

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Fused Zirconia mullite Data Sheet:



Guarantee value Typical value
Chemical Composition (%) Al2O3 44-47 45.8
ZrO2 35-39 36.5
SiO2 15.5 - 19.5 17.1
Crystal Phases 3Al2O32SiO2 Phase (%) 50 - 55
Indined ZrSiO4 Phase (%) 30 - 33
Corundum Phase (%) ≤5.0
Glass Phase (%) ≤5.0
Bulk density (g/cm3) ≥3.6
Apparent porosity (%) ≤3.0
Grain size (mm) 5-3,3-1,1-0,0.59-0.21,0.21-0
Test standard KTB01006-2003 GB/T4984-85
Packing 25 kg/plastic bag
Usage Refractory