AC10040 Alumina Ceramic Ring, Aluminium Oxide Ring, Al2O3 Ring 95%, Dia. 25 mm

Alumina Ceramic Ring, Aluminium Oxide Ring, Al2O3 Ring 95%, Dia. 25 mm Description

This product is crafted from ≥95% Al2O3, exhibiting a ring form with a 25 mm diameter suitable for integration into mechanical assemblies. It offers a tensile strength of approximately 220 MPa and a compressive strength nearing 2068 MPa. With a thermal conductivity of 25 W/(m·K) and an operating temperature up to 1500 °C, it also provides excellent electrical insulation with a volume resistivity exceeding 10^14 Ohm·cm, ensuring operational stability under thermal stress.

Alumina Ceramic Ring, Aluminium Oxide Ring, Al2O3 Ring 95%, Dia. 25 mm Applications

Industrial Applications
- Used as an insulating component in high-temperature furnace systems to manage thermal expansion by leveraging its operating temperature of ≤1500 °C and rigorous mechanical strengths.
- Applied as an insulating washer in pressure vessels to minimise electrical interference by utilising its high volume resistivity (>10^14 Ohm·cm).

Electronics Applications
- Serves as a dielectric barrier in electrical assemblies to prevent leakage currents by capitalising on its inherent electrical insulation and consistent mechanical integrity.

Alumina Ceramic Ring, Aluminium Oxide Ring, Al2O3 Ring 95%, Dia. 25 mm Packing

The ring is packaged in anti-static cushioning material and encased within a moisture-resistant container. Each unit is wrapped in foam to alleviate mechanical shock during transit. The packaging supports storage in a temperature-controlled, dry setting, and optional custom labelling and compartmentalised inserts are available for contamination-sensitive applications.

Frequently Asked Questions

Q1: How is the dimensional accuracy maintained in alumina rings?
A1: Dimensional accuracy is achieved through calibrated sintering and routine measurement using high-resolution instruments. This process consistently verifies the 25 mm diameter, ensuring compatibility with standard industrial assemblies.

Q2: What quality control methods are used to verify material purity?
A2: The manufacturing process employs X-ray diffraction and spectrochemical analysis to verify the ≥95% Al2O3 content. These methods ensure that the ceramic ring meets the specified purity and performs as required under demanding conditions.

Q3: Can the ring sustain its properties under rapid thermal cycling?
A3: Testing under controlled thermal cycling demonstrates that the ceramic ring maintains its mechanical and electrical properties. Its microstructural stability minimises degradation, ensuring reliable performance even with rapid temperature fluctuations.

Additional Information

Alumina ceramics, primarily composed of aluminium oxide, are extensively used in industrial sectors due to their insulating properties, mechanical strength, and ability to withstand extreme temperatures. Detailed investigations into the sintering processes and microstructural characteristics help optimise these materials for specialised applications.

Research in dielectric ceramics continues to evolve, offering insights into thermal management and electrical insulation in complex engineering systems. Understanding the interaction between ceramic processing methods and material performance is crucial for advancing applications in both electronics and heavy industry.