Zirconia fused alumina

Product Raw Material: aluminum、zirconium

Application Area: Making zircon fused alumina brick and building materials

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Zirconia fused alumina


Zirconia fused alumina was made from aluminum and Zirconium oxide by melting above 2250C in the electric arc furnace and cooling,then the huge zirconia fused alumina lump is crushed into different sizes,from a few mm to 0.8 um.

Chemical Composition(%)

Items Al2O3 ZrO2 TiO2 Fe2O3 SiO2
ZA25 68-72 24-30 ≤1.5 ≤0.5 ≤1.0
ZA40 55-57 35-44 ≤1.5 ≤0.5 ≤1.0

Physical Properties

Crystal Form Monoclinic,tetragonal system
Reaction with acid and alkali no
Reaction with carbon Forming carbide since 1650C
Color Grey
True Density 4.20g/cm3
Bulk Density 2.18g/cm3
Moh's hardness 9.0
Knoop hardness 1450-2000kg/cm2
Melting point 1900C
Maximum service temperature 1700C
Specific heat capacity(cal/g.C) 0.2205(50-500C)
Heat conductivity 0.2718 cal/cm2.sec.C
Linear expansivity(X10-6) 6.82(100-700C)

Main Applications

1.Making zircon fused alumina brick and building materials

2.Used for making bonded abrasives products,and process of grinding,sandblasting,surface treatment of metal products and other materials.

3.With good melt erosion resistance,Zirconia fused alumina has good grinding effect on steel,iron casting,heat resistant steel and other alloy materials.

4.Zirconia fused alumina can be made for heavy duty Zirconia fused alumina grinding wheel,snagging,cutting disc,Fiber disc,grinding rails,high speed abrasive belts etc

5.Used for making coated abrasives products,

6.Used for making lapping paste,polishing wax,emery cloth,sandpaper etc

7.Fused Alumina-Zirconia  is primarily used for steel conditioning wheels, snagging wheels, large diameter cut-offs and other grinding applications that require high speed and pressure. It's also is recommended for refractories that require a high resistance to environmental corrosion and a low coefficient of thermal expansion. Applications include slide gates, glass tank refractories, and other applications requiring resistance to molten slags.

Available Sizes:

0-0.5mm 0.5-1mm. 1-1.5mm 1-2mm 1-3mm
F grit F4 F5 F6 F7 F8 F10 F12 F14 F16 F20 F22 F24 F30 F36 F46 F54 F60 F70 F80 F90 F100 F120 F150 F180 F220
P grit P4 P5 P6 P7 P8 P10 P12 P16 P20 P24 P30 P36 P40 P50 P60 P80 P100 P120 P150 P180 P220