What's Tungsten Evaporation Boat?
What's Tungsten Evaporation Boat?
Tungsten evaporation boat, also known as tungsten boat or evaporation tungsten crucible, is a boat-shaped resistive heating element manufactured from high-purity tungsten sheets through stamping, bending, or welding processes. It is primarily used in vacuum thermal evaporation coating. Featuring a specialized structure, the component contains a central recess designed to hold evaporation materials, with both ends serving as electrode connection zones to enable electrical heating and stable energy transmission. As an evaporation source carrier, tungsten boat plays a critical role in thin-film preparation.
Advantages of CTIA's Tungsten Evaporation Boat
(1) Excellent High-Temperature Stability: With a melting point of 3,422°C, tungsten boat operates stably above 1,800°C for extended periods without deforming, easily adapting to heavy-duty working conditions.
(2) Low Contamination: High material density and extremely low vapor pressure minimize tungsten volatilization at elevated temperatures, effectively reducing film contamination risks.
(3) Superior Electrical and Thermal Conductivity: Fast thermal response and uniform heat distribution enhance evaporation efficiency and process stability.
(4) Exceptional Structural Stability: Maintains shape and dimensional stability under high-temperature cycles, ensuring reliable long-term performance.
(5) Corrosion Resistance and Extended Lifespan: Strong resistance to erosion by most molten metals makes it ideal for long-term vacuum operations.
Applications of CTIA's Tungsten Evaporation Boat
The applications of CTIA's tungsten crucible are detailed in the picture below:
Specifications of CTIA's Tungsten Evaporation Boat
Purity: ≥ 99.95%
Density: 19.1–19.25 g/cm³
Length: 50–1,000 mm
Width: 10–500 mm
Thickness: 0.3–10 mm
Structural Type: Stamping, bending, welding, riveting, custom irregular shapes
Surface Treatment: Cleaning, alkaline washing, polishing, mirror finishing
Note: CTIA GROUP provides customized tungsten boat solutions.
CTIA GROUP has been deeply rooted in tungsten boat manufacturing for over 30 years, specializing in structural engineering and parameter optimization tailored to specific equipment thermal fields and process environments. By strictly controlling material purity and machining precision, tungsten boat is ensured to maintain structural integrity and a stable thermal field under intense heat, which ultimately optimizes evaporation efficiency and film uniformity while supporting diverse custom requirements for various operating conditions.
For any inquiry, please contact tungsten boat manufacturer: CTIA GROUP
Email: sales@chinatungsten.com
Tel: 0086 592 5129696 / 0086 592 5129595
Website: www.tungsten.com.cn
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