AC10037 Alumina Ceramic Ring, Aluminium Oxide Ring, Al2O3 Ring 95%, Dia. 18 mm

Alumina Ceramic Ring, Aluminium Oxide Ring, Al2O3 Ring 95%, Dia. 18 mm Description

This ceramic ring is fabricated from high-purity Al2O3 with a minimum purity of 95% and a density of 3.5 g/cm3. Its 18 mm diameter structure is optimised for balanced stress distribution, with tensile strength of ~32 Kpsi and compressive strength of ~300 Kpsi ensuring mechanical strength. A thermal conductivity of 25 W/(m·K) supports efficient heat transfer, while volume resistivity exceeding 10^14 Ohm·cm provides excellent electrical insulation. SAM utilises controlled sintering and SEM inspections to maintain tight tolerances and consistent material properties.

Alumina Ceramic Ring, Aluminium Oxide Ring, Al2O3 Ring 95%, Dia. 18 mm Applications

1.       Industrial Applications
   - • Used as a spacer in high-pressure assembly systems to achieve uniform load distribution by leveraging its high compressive strength.
   - • Applied as a sealing washer in thermal processing equipment to mitigate heat-induced distortions due to its stable thermal conductivity.

2.       Electronics and Electrical Systems
   - • Serves as an electrical insulator in circuit assemblies to prevent short circuits by leveraging its high volume resistivity.
   - • Employed as a component in high-temperature sensor housings to maintain dimensional stability under thermal stress.

Alumina Ceramic Ring, Aluminium Oxide Ring, Al2O3 Ring 95%, Dia. 18 mm Packing

The product is packaged in anti-static, moisture-resistant pouches and cushioned within shock-absorbing foam-lined boxes. Packaging ensures minimal mechanical impact during transit and protects against contamination. The rings are stored in a climate-controlled environment to preserve material properties, with customised packaging solutions available to suit specific storage and handling requirements.

Frequently Asked Questions

Q1: How is material purity maintained in the ceramic ring?
A1: Purity is ensured by using high-grade alumina raw materials and verified through X-ray diffraction and scanning electron microscopy during the sintering process. This approach minimises impurities and defects.

Q2: What factors influence the thermal conductivity of this ring?
A2: The thermal conductivity is primarily affected by the grain size distribution and residual porosity in the ceramic. Controlled sintering and densification techniques help achieve the specified thermal performance.

Q3: How does the ring design enhance its mechanical properties?
A3: The ring geometry facilitates uniform stress distribution, reducing localised stress concentrations. Standardised mechanical testing confirms its tensile and compressive strengths, which are critical for load-bearing applications.

Additional Information

Advanced ceramics like alumina are critical in applications demanding high resistance to thermal and mechanical stress. The microstructure of alumina plays a pivotal role in achieving both high stiffness and thermal efficiency. Controlled processing methods, such as precision sintering, help reduce defects and ensure consistent performance.

The properties of alumina, including its high volume resistivity and mechanical strengths, make it suitable for a range of industrial and electronic applications. Continuous improvements in ceramic processing techniques contribute to enhanced performance reliability in demanding environments, supporting ongoing research and industrial advancements.