AC9835 Alumina Crucible, Al2O3 Crucible Cylindrical, 99%, 880 mL

Alumina Crucible, Al2O3 Crucible Cylindrical, 99%, 880 mL Description

The Alumina Crucible, Al₂O₃ Crucible Cylindrical, 99%, 880 mL is manufactured from high-purity alumina (Al₂O₃) and features a cylindrical design suitable for high-temperature processing. Its 880 mL capacity and controlled density (3.7-3.9 g/cm³) support stable thermal and mechanical conditions. The specified tensile and compressive strengths ensure durability under thermal cycling, while the thermal conductivity and high volume resistivity promote efficient heat distribution and electrical insulation during material synthesis and processing.

Alumina Crucible, Al2O3 Crucible Cylindrical, 99%, 880 mL Applications

1.       Industrial Processing
   - Used as a high-temperature containment vessel in ceramic and glass production to stabilise heat distribution by leveraging its thermal conductivity and mechanical strength.

2.       Semiconductor Manufacturing
   - Applied as a reaction vessel in high-temperature oxidation processes to achieve contamination minimisation by leveraging its chemical inertness and high resistivity.

3.       Laboratory Synthesis
   - Serves as a crucible in material synthesis systems to maintain sample integrity and purity by leveraging its controlled density and thermal resistance.

Product Comparison

Alumina Crucible, Al2O3 Crucible Cylindrical, 99%, 880 mL Packing

The crucible is packaged in sturdy fibreboard boxes with internal foam padding to reduce mechanical stress during transit. A sealed polyethylene layer provides moisture and dust protection. Storage recommendations include a dry, stable-temperature environment to maintain thermal and structural integrity. Custom packaging options with additional shock absorption and anti-static measures are available upon request to suit specific handling requirements.

Frequently Asked Questions

Q1: What measures are taken to ensure dimensional accuracy in the crucible?
A1: The production process includes calibrated machining and inspection using optical comparators. This method verifies the 880 mL capacity and geometric consistency, minimising variations that could affect thermal processing outcomes.

Q2: How does the thermal conductivity benefit high-temperature applications?
A2: With a thermal conductivity of 30 W/(m·K), the crucible facilitates uniform heat transfer during processing. This minimises hot spots and thermal gradients, contributing to more controlled reaction conditions and material integrity.

Q3: Can the crucible withstand rapid temperature changes without cracking?
A3: The specified tensile and compressive strengths (~38 Kpsi and ~300 Kpsi) support the crucible's resistance to thermal shock. However, gradual temperature changes are recommended to maintain optimal structural performance over repeated cycles.

Additional Information

Alumina-based ceramics are widely used in high-temperature applications due to their inherent chemical inertness and stable thermal properties. The microstructure of alumina contributes to its ability to sustain mechanical stress and thermal cycling, making it a preferred choice in processes requiring consistent performance under rigorous conditions.

Understanding the relationship between material purity, density, and thermal conductivity is essential for optimising manufacturing processes. The interplay of these properties determines not only the crucible's performance but also the efficiency of the thermal processes it supports in various industrial and research applications.