AC9851 Alumina Crucible, Al2O3 Crucible Square, 99%, 75 mL

Alumina Crucible, Al2O3 Crucible Square, 99%, 75 mL Description

This crucible, constructed from 99% pure Al2O3, offers a volume of 75 mL to ensure consistent material handling in thermal processes. The ~261 MPa tensile strength and ~2 068 MPa compressive strength imply resistance to mechanical stress during severe thermal cycling. With a thermal conductivity of 30 W/(m·K) and an operating limit of ≤1 600 ℃, it satisfies requirements for controlled heat distribution and insulation in high-temperature environments.

Alumina Crucible, Al2O3 Crucible Square, 99%, 75 mL Applications

Industrial Processes
- Used as a containment vessel in high-temperature furnaces to prevent contamination by leveraging high-purity alumina, thereby ensuring material integrity during sintering.

Semiconductor Processing
- Applied as a ceramic support in processing ovens to achieve uniform heating by leveraging controlled thermal conductivity and microstructural consistency.

Materials Research
- Served as an experimental crucible in laboratory thermal analysis to attain repeatable thermal cycling by leveraging robust tensile and compressive strength.

Product Comparison

Alumina Crucible, Al2O3 Crucible Square, 99%, 75 mL Packing

The crucible is individually wrapped in anti-static foam and secured in a rigid box with moisture barriers and anti-scratch materials. This protective packaging minimises mechanical shock and contamination during transit and storage. It is recommended to store the unit in a dry, temperature-controlled environment. Custom packaging options are available to meet specific handling requirements.

Frequently Asked Questions

Q1: How does the 99% alumina purity impact the crucible's performance during repeated thermal cycles?
A1: The 99% alumina composition minimises impurities that could induce localised thermal stress, allowing the material to expand and contract uniformly during thermal cycles. This results in a prolonged lifespan and consistent dimensional stability even under high-temperature conditions.

Q2: What precautions should be taken to prevent contamination during use?
A2: To avoid surface contamination, the crucible should not contact reactive substances such as metals or acids. Employ neutral cleaning solvents and adhere to established anti-contamination procedures to preserve the material's insulating and structural properties.

Q3: How does the density range of 3.7-3.9 g/cm³ influence thermal performance?
A3: The specified density range promotes uniform heat distribution and consistent thermal conductivity. This control helps mitigate thermal gradients during rapid temperature changes, thereby maintaining the crucible's structural and dielectric integrity.

Additional Information

Alumina (Al2O3) is extensively utilised in high-temperature engineering due to its notable thermal stability, chemical inertness, and mechanical strength. Its crystalline structure underpins both its durability and capacity to act as an electrical insulator, making it a preferred choice for high-performance ceramic components.

Recent advancements in ceramic processing techniques have improved sintering methodologies, ensuring a uniform microstructure and consistent material properties. This enhanced control is crucial in applications ranging from industrial furnace components to precision laboratory equipment, where maintaining dimensional and thermal consistency is essential.