Alumina Plate, Aluminum Oxide Plate, Al2O3
Alumina Plate also known as aluminum oxide (Al2O3). Alumina plates are valued for their excellent thermal and mechanical properties, making them suitable for a wide range of industrial applications where high-temperature resistance, electrical insulation, and wear resistance are required. Alumina Plates are versatile ceramic components that offer a combination of high-temperature resistance, electrical insulation, hardness, and chemical inertness, making them valuable in a wide range of industrial applications across various sectors.
Key Features :
- High-Temperature Resistance: Withstands temperatures up to 1750°C.
- Chemical Resistance: Excellent resistance to corrosive environments.
- Electrical Insulation: Superior insulating properties.
- Durability: High hardness and wear resistance.
- Low Thermal Expansion: Reduces the risk of thermal shock.
Alumina Plate Specifications
| Composition | AL97 | AL98 |
| AL2O3 Content | 97% | 99.80% |
| Color | White | Ivory |
| Tensile | 30 Kpsi | 32 Kpsi |
| Flexural | 55 Kpsi | 60 Kpsi |
| Compressive | 300 Kpsi | 330 Kpsi |
| Density | 3.7 g/cc | 3.92 g/cc |
| Hardness | 13.8 HV, Gpa | 18 HV, Gpa |
| Thermal Conductivity | 25 W/(m K) | 32 W/(m K) |
| C.O.T.E. | 77 In / In°C (x10^7) | 78 In / In°C (x10^7) |
| Working Temperature | 1500 °C | 1750 °C |
| Dielectric Constant | 9.5 | 9.8 |
| Volume Resistivity | >10^14 Ohm-cm | >10^15 Ohm-cm |
| Dielectric Strength | 16 KV/mm | 20 KV/mm |
Alumina Plate Applications
Alumina plates, made from high-purity aluminum oxide (Al2O3), are valued for their exceptional thermal, mechanical, and chemical properties, making them essential in various applications. In the electrical and electronics industry, they serve as substrates for electronic circuits, microelectronics, and insulators in high-voltage applications. They are used in laboratory equipment as support plates and liners in high-temperature furnaces and chemical reactors. The semiconductor industry employs them for wafer processing, while in the medical and dental fields, they are used in prosthetic components and orthopedic implants due to their biocompatibility and strength. Industrial applications include wear-resistant components and cutting tools. In optical applications, they are used in laser systems for their thermal stability. Aerospace and defense sectors utilize alumina plates in armor systems and thermal shields. Additionally, they are employed in renewable energy for solar cells and photovoltaic devices. These applications benefit from alumina plates’ high melting point, excellent insulation, mechanical strength, and chemical resistance.
Payment & Order Questions
Most Popular Questions
Alumina plates are available in various purity grades, such as:
96% Alumina (cost-effective for general applications)
99.5% Alumina (higher purity for advanced applications)
99.9% Alumina (ultra-high purity for precision applications)
Yes, alumina plates can be customized in terms of size, thickness, surface finish, and even specific shapes (e.g., holes, cutouts) to meet your application requirements.
Alumina plates offer a balance of cost, performance, and durability compared to other ceramics like zirconia or silicon carbide. They are more cost-effective than zirconia and have better thermal conductivity than silicon nitride.
Common surface finishes include:
As-fired (standard finish)
Polished (for smooth surfaces)
Lapped (for precision flatness)
Coated (for enhanced properties)
The choice depends on factors such as:
Required purity level
Operating temperature and environment
Mechanical and electrical requirements
Budget constraints
Our team can help you select the best alumina plate for your specific needs.
Lead times vary based on customization and order volume. Standard products typically ship within 1-2 weeks, while custom orders may take 3-6 weeks.
Yes Sure, we can provide Industrial Ceramic Samples According to Your Requirements.
Our lead time for orders typically ranges from 4 to 8 weeks, depending on the product and order size. For specific timelines, please contact us directly.
