AC10047 Alumina Ceramic Ring, Aluminium Oxide Ring, Al2O3 Ring 99%, Dia. 25 mm

Alumina Ceramic Ring, Aluminium Oxide Ring, Al2O3 Ring 99%, Dia. 25 mm Description

This ceramic component comprises high-purity aluminium oxide (Al2O3) shaped as a 25 mm diameter ring. Its mechanical properties, including a tensile strength of approximately 262 MPa and a compressive strength of 2,068 MPa, along with a thermal conductivity of 30 W/(m·K), render it suitable for applications exposed to high temperatures (up to 1,600 ℃) and significant mechanical stress. The high volume resistivity (>10^14 Ohm·cm) further supports electrical insulation in demanding environments.

Alumina Ceramic Ring, Aluminium Oxide Ring, Al2O3 Ring 99%, Dia. 25 mm Applications

Electronics
- Used as an insulating component in power circuitry to achieve effective electrical isolation by leveraging its high volume resistivity and thermal conductivity.

Industrial
- Applied as a gasket or washer in high-temperature furnace assemblies to achieve stable thermal management by leveraging its high operating temperature and mechanical strength.

Automotive
- Serves as a sealing washer in engine systems to achieve controlled thermal expansion by leveraging its chemical inertness and dimensional stability.

Alumina Ceramic Ring, Aluminium Oxide Ring, Al2O3 Ring 99%, Dia. 25 mm Packing

Each ring is individually packaged in a foam-lined, anti-static container and secured within a rigid box to prevent mechanical damage and contamination. The packaging is designed to shield against dust, moisture, and shock. The product should be stored in a temperature-controlled, dry environment. Custom packaging options, including specialised labelling and compartmentalisation, are available on request.

Frequently Asked Questions

Q1: What measures are taken to ensure uniform microstructure in the ceramic ring?
A1: The manufacturing process includes controlled sintering and periodic optical microscopy inspections to monitor grain size and distribution. These measures help maintain consistency in mechanical properties and dimensional tolerances across production batches.

Q2: How does the alumina composition affect thermal stability?
A2: The high mass fraction of Al2O3 contributes to a stable microstructure that supports operation at temperatures up to 1,600 ℃. This stability minimises thermal degradation during prolonged high-temperature exposure and enhances overall service longevity.

Q3: What storage conditions are recommended for maintaining the material properties?
A3: It is recommended to store the ceramic rings in a cool, dry environment with steady temperature control. Utilising anti-static packaging with shock-absorbing materials prevents mechanical damage and moisture ingress, thereby preserving both mechanical and electrical properties.

Additional Information

Alumina ceramics serve as key materials in a range of industrial applications due to their inherent chemical inertness and mechanical strength. Research in ceramic processing has focused on refining sintering processes to achieve uniform microstructures that underpin their high-temperature and load-bearing performance. Studies in grain boundary engineering and additive manufacturing continue to enhance the performance characteristics of alumina-based components.

Understanding the relationship between processing conditions and resulting microstructural properties is crucial in materials science. This knowledge allows engineers to optimise alumina ceramic components for applications where precise control of thermal and mechanical properties is essential, ensuring their consistent performance in demanding operational environments.