new material
Aluminum oxide (Al₂O₃) ceramic arms offer exceptional mechanical strength, optimized wear resistance, and superior thermal stability. Designed for precision applications, they ensure reliable structural integrity, extended durability, and high-performance efficiency.
Product Overview:
The 99.5% pure aluminum oxide ceramic arm is manufactured is known for its exceptional hardness and wear resistance, making it suitable for high-precision industrial applications. Made from high-quality aluminum oxide material, this ceramic arm offers lightweight design and excellent mechanical properties. It is widely used in various wear-resistant, high-temperature applications.
Product Features:
- High Hardness:Rockwell hardness of HRA 80-90, nearly as hard as diamond, far exceeding wear-resistant steel and stainless steel.
- Extreme Wear Resistance:Wear resistance is 266 times that of manganese steel and 171.5 times that of high-chromium cast iron, significantly extending equipment lifespan.
- Lightweight Design:Density of 3.5g/cm³, only half that of steel, reducing equipment load and improving operational efficiency.
- High Precision:Dimension tolerance of ±0.001, ensuring accuracy to meet industry requirements.
Applications:
- Mechanical Manufacturing:Used to make wear-resistant robotic arms and industrial components.
- Electronics Industry:Serves as wear-resistant and high-temperature components in precision electronic devices.
- Chemical Industry:Suitable for equipment components in high-temperature and corrosive environments.
- Metallurgical Industry:Widely used in metallurgical equipment and wear-resistant parts for high-temperature operations.
- Aerospace:Applied in high-performance ceramic components for aerospace equipment.
| Property | Unit | ≥95 | ≥99 | ≥99.5 | ≥99.8 |
| Bulk Density | g/cm³ | 3.7 | 3.8-3.85 | 3.85 | 3.85 |
| Hardness | MPa≥ | 86 | 88 | 88 | 88 |
| Bending Strength | HRA≥ | 300 | 350 | 400 | 400 |
| Max Service Temp | ℃ | 1500 | 1500 | 1500 | 1500 |
| Linear Expansion Coefficient | ×10⁻⁶/℃ | 7.5 | 8.2 | 8.2 | 8.2 |
| Dielectric Constant | tr (20℃, 1MHz) | 9 | 9.2 | 9.2 | 9.2 |
| Dielectric Loss | tanδ×10⁻⁴, 1MHz | 3 | 2 | 2 | 2 |
| Volume Resistivity | cm (20℃) | 10¹³ | 10¹⁴ | 10¹⁴ | 10¹⁴ |
| Breakdown Strength | kV/mm, DC≥ | 20 | 20 | 20 | 20 |
| Acid Resistance | mg/cm²≤ | 0.7 | 0.7 | 0.7 | 0.7 |
| Alkali Resistance | mg/cm²≤ | 0.2 | 0.1 | 0.1 | 0.1 |
| Wear Resistance | g/cm²≤ | 0.2 | 0.1 | 0.1 | 0.1 |
| Compressive Strength | MPa≥ | 2500 | 2500 | 2500 | 2800 |
| Flexural Strength | MPa≥ | 200 | 350 | 350 | 350 |
| Elastic Modulus | GPa | 300 | 350 | 350 | 350 |
| Poisson's Ratio | Lateral Strain Coefficient | 0.2 | 0.22 | 0.22 | 0.22 |
| Thermal Conductivity | W/m·K (20℃) | 20 | 25 | 25 | 25 |
