AC9817 Alumina Crucible, Al2O3 Crucible Cylindrical, 95%, 75 mL

Alumina Crucible, Al2O3 Crucible Cylindrical, 95%, 75 mL Description

This cylindrical crucible is fabricated using 95% alumina and is optimised for high-temperature usage. With a volume of 75 mL, it exhibits a tensile strength of approximately 220 MPa and a compressive strength near 2 100 MPa. Its thermal conductivity of 25 W/(m·K) and operating temperature limit of up to 1 500 ℃ support applications involving significant thermal cycling. The high volume resistivity (>10^14 Ohm·cm) facilitates electrical insulation in processes where contamination control is essential.

Alumina Crucible, Al2O3 Crucible Cylindrical, 95%, 75 mL Applications

1.       Industrial Processing
   - Used as a refractory container in high-temperature furnaces to contain molten materials by leveraging its controlled thermal conductivity.
   - Applied as a reaction vessel in ceramic synthesis to maintain process temperatures and prevent contamination through high surface stability.

2.       Metallurgical Operations
   - Employed as a melting crucible for metals to achieve even heat distribution by leveraging its high compressive strength.
   - Frequently used in alloy preparation to minimise thermal shock, ensuring consistent melting profiles in metal processing systems.

3.       Laboratory Research
   - Utilised as a sample container in high-temperature experiments to prevent chemical interaction by leveraging its inert alumina composition.
   - Applied as a calibration vessel in process development tests to attain precise temperature and thermal conductivity performance.

Alumina Crucible, Al2O3 Crucible Cylindrical, 95%, 75 mL Packing

Each crucible is secured in a moulded foam insert inside a moisture-resistant carrier to prevent physical damage and contamination. The unit is sealed in anti-static packaging to limit environmental exposure. Instructions for proper storage recommend keeping the crucibles in a dry, temperature-controlled area. Custom packaging options, such as individual labelling and compartmentalised inserts, are available upon request.

Frequently Asked Questions

Q1: How does the manufacturing process address thermal expansion issues?
A1: The controlled alumina composition and precise forming procedures minimise differences in thermal expansion. Detailed dimensional verification and microstructural inspections during production help manage expansion characteristics, reducing the risk of thermal-induced fractures during operation.

Q2: What cleaning protocols are recommended for these crucibles?
A2: The crucibles can be cleaned using non-abrasive methods and mild solvents that do not affect the alumina surface. Avoid aggressive mechanical cleaning to preserve the integrity of the material, which is essential for maintaining performance during high-temperature cycles.

Q3: Are there any compatibility considerations with reactive metals or chemicals?
A3: Alumina crucibles provide chemical inertness suitable for many reactive metal processes. However, pre-assessment of the specific chemical interactions is advised to confirm suitability, particularly when exposed to highly corrosive substances over prolonged periods.

Additional Information

Alumina ceramics are extensively used in environments where high-temperature stability and electrical insulation are critical. The material’s controlled porosity and chemical inertness make it a preferred option for precise lab-scale and industrial processing tasks. Detailed phase analysis and grain boundary evaluations remain central to further enhancing alumina applications.

Advances in microscale characterisation have improved our understanding of the sintering behaviour and thermal response of alumina materials. This scientific insight facilitates the design of components that withstand rigorous operational demands. The integration of such ceramic components is instrumental in optimising high-performance systems in a range of industrial sectors.