AC10039 Alumina Ceramic Ring, Aluminium Oxide Ring, Al2O3 Ring 95%, Dia. 24 mm

Alumina Ceramic Ring, Aluminium Oxide Ring, Al2O3 Ring 95%, Dia. 24 mm Description

This alumina ceramic ring is manufactured from aluminium oxide with a minimum purity of 95%. Featuring a 24 mm diameter and a density of 3.5 g/cm³, it exhibits a tensile strength of approximately 32 Kpsi and a compressive strength of around 300 Kpsi. Its thermal conductivity of 25 W/(m·K) and operating temperature limit of ≤1500 ℃ make it suitable for applications requiring heat dissipation and high structural integrity. Additionally, a volume resistivity exceeding 10^14 Ohm·cm ensures effective electrical insulation.

Alumina Ceramic Ring, Aluminium Oxide Ring, Al2O3 Ring 95%, Dia. 24 mm Applications

Industrial Applications
- Used as a structural washer in high-temperature assemblies to maintain component spacing by leveraging its compressive strength, thereby reducing thermal deformation risks.
- Applied as a wear-resistant spacer in mechanical systems to sustain dimensional stability and mitigate friction under load.

Electronics Applications
- Serves as an insulative component in circuit assemblies to maintain electrical isolation by utilising its high volume resistivity.
- Employed as a precision spacer in sensor setups where stable thermal conductivity and dimensional accuracy are required for optimal device performance.

Alumina Ceramic Ring, Aluminium Oxide Ring, Al2O3 Ring 95%, Dia. 24 mm Packing

Ceramic rings are individually secured in anti-static, cushioned containers with foam inserts to reduce mechanical impacts during transit. Moisture-resistant wrapping coupled with clean room handling minimises particulate contamination. Storage conditions are maintained at controlled ambient temperatures away from excessive humidity. Clients may request customised packaging options based on volume and specific handling methods to further safeguard the product integrity during shipment and storage.

Frequently Asked Questions

Q1: How does the sintering process affect the mechanical properties of this alumina ring?
A1: The sintering process controls the grain structure and density of the alumina material, directly influencing its tensile and compressive strengths. Precise temperature management during sintering ensures microstructural consistency, which is critical for achieving the specified mechanical properties.

Q2: What considerations are there when incorporating this ceramic ring into thermal management designs?
A2: Its thermal conductivity of 25 W/(m·K) and high operating temperature limit require careful thermal modelling to integrate with surrounding materials. Designers should account for heat dissipation pathways and thermal expansion differences when embedding the ring in assemblies.

Q3: How is electrical insulation maintained in this component?
A3: The alumina ring’s volume resistivity exceeding 10^14 Ohm·cm provides effective electrical insulation. This property, combined with its stable ceramic matrix, ensures minimal leakage currents and effective isolation in sensitive electronic applications.

Additional Information

Alumina ceramics are widely used in environments that demand endurance under high thermal and mechanical stress. The microstructural control during sintering plays a crucial role in achieving desired performance characteristics such as strength, thermal conductivity, and electrical insulation. These materials are often selected for applications in areas where dimensional stability and resistance to harsh chemical environments are essential.

In advanced industrial settings, the integration of such ceramic components can substantially enhance system longevity and performance. Understanding the interplay between material properties like density, thermal behaviour, and mechanical strength is key for designing reliable components in high-temperature and high-load applications.