Zirconia Fused Alumina(Zirconium Oxide) for Abrasives

Zirconia Fused Alumina(ZA),other name Zirconium Aluminium Oxide,Zirconia Aluminum Oxide, is an synthetic corundum produced from fusion/smelting high quality alumina powder and zirconia sand in 2000℃ electric arc furnaces. Alumina gives it aluminum oxide and zirconia sand gives it zirconium oxide(ZrO2). After the fusion process, the materials become liquid materials, and crushed (milled)into lump sizes. The lump sizes are then crushed into finer grades or powders and refined by sieving equipment into materials of different particle distribution for different applications. Zirconia Fused Alumina is an important material for abrasive belts, abrasive cloth, heavy duty grinding wheels, refractory and blasting industries used for different applications featuring its high density, high hardness and strength.

 

Zirconia Fused Alumina Characters

Refractory/Fireproof

Zirconia Fused Alumina contains Zirconium Oxide(ZrO2) and Aluminium Oxide(Al2O3) which are important chemical contents for refractory performance. Ideal material for refractory bricks.

High Strength

Zirconia Fused Alumina has high hardness and strength(about 400N). It’s one of the most hard and strong artificial corundum.

Sharp Grain

Like other corundum, grains of ZA is sharp edged material ideal for cutting, lapping, polishing etc of metal surface.

High Density

Zirconia Fused Alumina has true gravity of about 4.3g/cm3, compared to about 3.9g/cm3 of Brown Fused Alumina and 3.6g/cm3 of White Fused Alumina. And bulk density about 2.2g/cm3 which is also much higher than other corundum. It’s used for heavy duty bonded abrasive products.

 

There’re two grades of Zirconia Fused Alumina by its content of Zirconium Oxide(ZrO2): ZA25 and ZA40 named by their content.

 

Available Sizes: 0-1mm,1-3mm,3-5mm, F8-F220 for abrasive use, P8-P220 for coated abrasives

 

Zirconia Fused Alumina FEPA Sizes for Bonded Abrasives and Blasting(ZA25)

 

Grit# Max Size Big Size Basic Size Mixed Size Small Size
F12 +2.80 +2.00 +1.70 +1.40 -1.18
Standard 0% 0-20% 45-100% 70-100% 0-3%
Results 0 12 59 87 0.5

 

Grit# Max Size Big Size Basic Size Mixed Size Small Size
F14 +2.36 +1.70 +1.40 +1.18 -1.00
Standard 0% 0-20% 45-100% 70-100% 0-3%
Results 0 5 62 91 0.5

 

Grit# Max Size Big Size Basic Size Mixed Size Small Size
F16 +2.00 +1.40 +1.18 +1.00 -0.85
Standard 0% 0-20% 45-100% 70-100% 0-3%
Results 0 5 52 81 0.5

 

Size Magnetic Contents True Density(g/cm3) Bulk Density(g/cm3) Strength
F12 0.008 4.3 2.19 440N
F14 0.009 4.3 2.17 440N
F16 0.009 4.3 2.16 440N

 

Chemical Analysis
Size ZrO2 Al2O3 Fe2O3 SiO2 TiO2 CaO NaO Grade
F8-F16 24.15 73.50 0.20 0.51 0.98 0.25 0.15 A

 

 

 

Zirconium Oxide

Zirconium Oxide

 

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