Covers for High Purity Alumina (Al2O3) Half-Round Boat Crucibles
Product Details:
ZYLAB high purity alumina (Al2O3) crucibles feature wear resistance, corrosion resistance, high flatness, and good chemical stability, making them widely applicable in ceramic sintering, metal melting, chemical reactions, material testing, and semiconductor manufacturing.
The half-round boat design facilitates uniform heating and effective heat transfer in tube furnaces, while also making placement and removal easier, thus enhancing the convenience of experiments.
The crucible Cover prevents external contaminants from entering the crucible and protects samples from splashing. Under high-temperature conditions, the lid can reduce material evaporation losses and better retain heat, improving heating efficiency.
Covers are available for purchase separately.
Alumina Purity: >99%
Maximum temperature resistance: 1750°C
Continuous operating temperature: ≤1600°C
Custom services such as slotting and drilling are available.
Standard Products and Specifications:
| Alumina Half-Round Boat Crucibles Specification (UoM：mm) | |||
| 50×40×20 | 100×20×15 | 100×20×20 | 100×30×20 |
| 100×35×18 | 100×40×20 | 100×40×25 | 100×50×30 |
| 115×55×28 | 150×40×20 | 150×150×60 | |
The above crucible dimensions are standard sizes; other sizes can be customized upon request.If you need more detailed information, please contact us immediately. We offer free quotes on all products!
Applications:
Ceramic Sintering: Used for sintering high-temperature ceramic materials to enhance their strength and wear resistance.
Metal Melting: Suitable for melting high-purity metals and alloys under high-temperature conditions, ensuring material purity.
Chemical Reactions: Facilitates various chemical reactions at high temperatures with effective resistance to chemical corrosion.
Material Testing: Employed in material science research, especially for evaluating material performance under high-temperature conditions.
Atmosphere Control: Provides excellent atmosphere control in tube furnaces, suitable for processing and reactions involving atmospheric gases.
Laboratory Applications: Widely used in scientific research and development, especially in experiments involving high-temperature processes.
High Purity Alumina Crucibles Notes for Use:
1. Before the first use, preheat the crucible in an oven at around 105°C for 120 minutes to remove moisture.
2. Do not directly heat the crucible with gasoline blowtorch, acetylene torch, or alcohol burner to avoid uneven heating and cracking of the product.
3. The heating or cooling rate should not be too fast. The temperature change below 1200°C should be <5°C/minute, and above 1200°C should be ≤4°C/minute. When cooling, it is recommended to control the temperature by powering off gradually. Cooling too fast during the initial cooling phase after turning off the power may cause the product to crack.
4. The distance between the product and the heating element (such as carbon tube, silicon molybdenum rod, or heating wire, etc.) should be >2cm.
5. The bottom of large crucibles should preferably not directly contact the bottom of the furnace. It is recommended to use alumina foot pads or other heat-resistant materials to lift the crucible, forming air convection to prolong the service life of the product.
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