Aluminium Oxide Ceramic Tube 99% 1.Great mechanical strength 2.High softening temperature 3.Good resistance to impact
High Purity Alumina Ceramic 99% AL2O3 Packing Ceramic Balls
| Alumina Balls Grinding Media Specifications | |||
| ITEMS | 92%AL2O3 | 75%AL2O3 | 65%AL2O3 |
| AL2O3(%) | 92 | 75 | 65 |
| Bulk Density(g/cm3) | 3.6 | 3.26 | 2.9 |
| Water Absorption(%) | <0.01 | <0.01 | <0.01 |
| Wear Loss(‰) | ≤0.2 | ≤0.25 | ≤0.5 |
| Hardness(MOhs) | 9 | 8 | 7—8 |
| Color | White | White | Light Yellow |
| Application | Glaze MillingTile body Milling | Glaze Milling | Glaze or Tilebody Milling |
| Raw Materails | Calcined Alumina Powder | Calcined Alumina Powder | Refined Bauxite Powder |
| Forming Method | CIP | CIP | CIP |
| Diameter(mm) | 0.5-70 | 10,20,30,40,50,60,70 | |
Specifications:
95%,99%,99.7% Al2O3 Material Parameters:
Item | Test Condition | Unit Symbol | 95%Alumina ceramics | 99%Alumina ceramics | 99.7%Alumina ceramics |
The main chemical ingredient | Al2O3 | Al2O3 | Al2O3 | ||
Bulk Density | g/cm3 | 3.6 | 3.89 | 3.96 | |
Maximum Use Temperature | 1450°C | 1600°C | 1650°C | ||
Water absorption | % | 0 | 0 | 0 | |
ROHS Hardness | ≥85 | ≥89 | ≥89 | ||
Flexural strength | 20° C | MPa (psi x 103) | 358 (52) | 550 | 550 |
Compressive Strength | 20° C | MPa (psi x 103) | 2068 (300) | 2600(377) | 2600(377) |
Fracture Toughness | K(I c) | Mpa m1/2 | 4-5 | 5.6 | 6 |
Coefficient of thermal expansion | 25-1000° C | 1X 10-6/°C | 7.6 | 7.9 | 8.2 |
Coefficient of thermal conductivity | 20° C | W/m °K | 16 | 30.0 | 30.4 |
Thermal Shock Resistance | Tc | °C | 250 | 200 | 200 |
Dielectricity constant | 1MHz.25°C | 9 | 9.7 | 9.7 | |
Dielectric strength | ac-kV/mm (ac V/mil) | 8.3 (210) | 8.7 (220) | 8.7 (220) | |
Volume Resistivity | 100°C | ohm-cm | > 1013 | > 1014 | > 1014 |
High Purity Alumina Ceramic 99% AL2O3 Packing Ceramic Balls
