Product Overview
Tungsten is renowned for its exceptional durability and its ability to withstand extreme temperatures and corrosive environments, particularly when dealing with molten metals and metal oxides. This makes it a preferred choice for various rigorous industrial applications. Our tungsten crucibles, particularly those manufactured through Chemical Vapor Deposition (CVD), offer outstanding characteristics:
- Density: Achieving up to 98.5% of theoretical density.
- Purity: Available up to 99.9999%.
- Microstructure: Features a columnar or multilayer columnar crystal structure.
Specifications
Standard Tungsten Crucible
| Purity | ≥99.95% |
| Density | ≥18.2g/cm3 |
| Surface | Ra≤3.2 |
| Operating temperature | ≤2400 ℃ |
| Size | Customized |
| Production method | Sintered (OD>70mm);Forged (OD<70mm) |
Available Sizes
| Diameter (mm) | 30 ~ 50 | 50 ~ 100 | 100 ~ 150 | 150 ~ 200 | 200 ~ 300 | 300 ~ 400 | 400 ~ 450 | 450 ~ 500 |
|---|---|---|---|---|---|---|---|---|
| Wall Thickness (mm) | 2 ~ 10 | 3 ~ 15 | 3 ~ 15 | 5 ~ 20 | 8 ~ 20 | 8 ~ 30 | 8 ~ 30 | 8 ~ 30 |
| Length (mm) | 30 ~ 500 | 30 ~ 500 | 30 ~ 500 | 30 ~ 500 | 30 ~ 500 | 30 ~ 500 | 30 ~ 500 | 30 ~ 500 |
Other sizes are available upon request. Contact us for customized tungsten crucibles.
Chemical Vapor Deposition (CVD) Tungsten Crucible
- Purity: 99.9999%
- Outer Diameter: Up to 200 mm
- Height: Up to 500 mm
- Deposition Thickness: Up to 10 mm
Features & Applications
Features
- High Temperature Resistance: Operates efficiently at temperatures as high as 2400°C, suitable for extreme heat conditions.
- Corrosion Resistance: Excellent resistance to corrosion from molten metals and oxides.
- Low Contamination: Minimizes contamination, ideal for crystal growth and rare-earth melting processes.
Applications
Tungsten crucibles are crucial in various high-temperature and high-precision fields, including:
- Crystal Growth: Utilized in the production of monocrystals, particularly sapphire, from molten corundum.
- Metallurgy and Alloy Production: Essential for melting and combining high-temperature metals and alloys.
- Electronics and Coating Processes: Applied in thermal vapor deposition for electronics manufacturing.
For further details, read about why tungsten crucibles are ideal for scientific experiments.
Packaging
To ensure the safety of each tungsten crucible during transportation and storage, we use robust packaging solutions. Larger crucibles are packed in sturdy wooden crates, while smaller crucibles are securely placed in durable cartons.
FAQs
Q1: Why is tungsten preferred for crucibles?
A1: Tungsten’s high melting point and minimal thermal expansion make it ideal for maintaining structural integrity under extreme conditions.
Q2: Can I customize the size of my tungsten crucible?
A2: Yes, we offer customization options for both dimensions and shapes to meet your specific needs.
Q3: What purity levels are available for these crucibles?
A3: Our standard purity level is ≥99.95%, with options up to 99.999% for specialized requirements.
Q4: How are tungsten crucibles packaged?
A4: Each crucible is securely packaged in a wooden crate for larger items and in cartons for smaller ones to ensure safe delivery.
Q5: How should I handle and maintain my tungsten crucible?
A5: To extend its lifespan, avoid exposing the crucible to sudden temperature changes and mechanical shocks during use.
Contact Us
For more information or to request a quote, please reach out to our customer service team. We are here to help you select the perfect tungsten crucibles for your application needs.
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