aluminum Oxide
Al203
Our aluminum oxide material is the most commonly used ceramic material in the chemical, medical and wear industries. It has an excellent cost-to-material performance record, making it a suitable choice for selected wear liners, mechanical pump seal faces, insulators and other electrical applications.
Good Mechanical Strength
Our Al2O3 material has comparable strength numbers to higher end non-oxide materials such as silicon carbide.Extraordinary Electrically Insulating Properties
Sintering specifically developed powders at high temperatures allows us to offer materials that possess excellent electrical properties.Good Corrosion Resistance
Our Al2O3 materials are corrosion resistant against diluted acids and caustic solutions.
Aluminum Oxide Properties
All properties are at room temperature (20°C) unless otherwise stated.
96.0% Aluminum Oxide Properties
| Physical Property | Units | Typical Value |
|---|---|---|
| Color | Ivory | |
| Density | g/cc | 3.71 |
| Hardness (Vickers) | GPa | 12.7 |
| Elastic Modulus | GPa | 310 |
| Flexural Strength (3 Pt Bend) | MPa | 358 |
| Tensile Strength | MPa | 200 |
| Compressive Strength | MPa | 2067 |
| Fracture Toughness | MPa-m 1/2 | 4-5 |
| Poisson’s Ratio | – | 0.22 |
| Max Use Temp | °C | 1700 |
| Coefficient of Thermal Expansion 25-100° C | 1 x 10 ^ -6 / °C | 6.0 |
| 25-100° C | 1 x 10 ^ -6 / °C | 6.8 |
| 25-100° C | 1 x 10 ^ -6 / °C | 7.5 |
| Thermal Conductivity | W/mK | 23 |
| Electrical Resistivity | Ω-cm | >10^14 |
99.8% Aluminum Oxide Properties
| Physical Property | Units | Typical Value |
|---|---|---|
| Composition | – | 99.8% AL2O3 |
| Density | g/cc | 3.91 |
| Hardness (Vickers) | GPa | 15 |
| Young’s Modulus | GPa | 379 |
| Bending Strength | MPa | 379 |
| Fracture Toughness | MPa-m 1/2 | 3-4 |
| Coefficient of Thermal Expansion | 1 x 10 ^ -6 / °C | 6.5 |
| Thermal Conductivity | W/mK | 30 |
| Electrical Resistivity | Ω-cm | >10^14 |