0.2-50mm yttria stab.zirconia ball for grinding

1. Yttria Stab.Zirconia Ball:
1)Preventing material from contamination because of its extreme low wear rate.
2)High grinding efficiency.
3)Lower total costs due to the long using life.

2. User:
Materials for grinding and dispersing, structural ceramics, electronics ceramics, refractory ceramics, magnetic material, metallurgy, medicine, food, cosmetics, textiles, printing and dyeing, pigment and other industries.

3.Specification:
Items Unit Specification
Composition wt% 94.8% ZrO2
5.2% Y2O3
Bulk Density Kg/L 3.73(Φ2mm)
Specific Density g/cm3 ≥6.02
Hardness(HV) GPa >8.5
Elastic modulus GPa 200
Thermal Conductivity W/m.K 3
Crushing Load KN ≥20 (Φ2mm)
Fracture Toughness MPam1-2 9
Grain size µm ≤0.5
Thermal expansion Coefficient(20-400 °C) 10x10 -6 / °C(20-400) 9.6

4. Available Size:
Size (mm) Size (mm) Size(mm) Size(mm)
0.2-0.4 1.4-1.6 3 20
0.4-0.6 1.6-1.8 5 25
0.6-0.8 1.8-2.0 6.5 30
0.8-1.0 2.0-2.2 10 35
1.0-1.2 2.2-2.4 12 40
1.2-1.4 2.4-2.6 15 45