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Zirconia mullite
Introduction
Fused zirconia mullite is made by fusing certain percentage of high purity aluminum oxide and
zircon sand in electrical arc furnace.
Zirconia mullite character :
Small coefficient of thermal expansion, high strength, good thermal shock resistance and strong resistance to slag.
Well improve the anti-corrosive ability of the refractory products
Enhance refractories wear resistance.
Applications:
Used for making zirconia mullite refractory bricks, Al2O3-ZrO2-C sliding plate and long nozzle service for metallurgical industry.
Widely used in glass kiln and making castable reractories.
Zirconia mullite Specification
|
Chemical composition |
Git >0.1mm |
Powder≤0.1mm |
|
Al2O3 %≥ |
46 ± 3 |
46 ± 3 |
|
SiO 2%≤ |
18 ± 2 |
18 ± 2 |
|
ZrO %≤ |
37 ± 3 |
37 ± 3 |
|
Fe2O3 %≤ |
0.15 |
0.25 |
|
R2O %≤ |
0.3 |
0.3 |
|
Apparent porosity %≤ |
3.0 |
|
|
Bulk density g/cm3 |
3.6 |
|
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fused mullite
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zirconia Alumina
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