Tungsten Boats For Vacuum Coating

Tungsten boats are formed by processing high-quality tungsten sheets. The plates have good thickness uniformity, can resist deformation, and are easy to bend after vacuum annealing. Tungsten boats of our company feature stable resistance, high-temperature resistance, less chemical impurity pollution, accurate dimensions, consistent surface colors, high firmness, difficult deformation, and other advantages. Our company has machining centers as well as precision shearing machines, laser cutting, water cutting, and large bending equipment, and can manufacture tungsten boats, molybdenum boats, and alloy boats of different models according to customer requirements.

A tungsten boat is used for the vacuum evaporator of granular materials. Tungsten boats can also be used to evaporate thin, short wires or wet wires. The tungsten evaporation boat is suitable for experiment or modeling work in a small evaporation system, like a bell jar. As a special and effective boat-shaped container, the tungsten boat is widely used in electron ray spraying, sintering, and annealing in vacuum coating. Customized Tungsten Boats For The Vacuum Coating have many excellent features.

High Temperature Resistance: Tungsten's high melting point allows it to maintain structural integrity at temperatures up to 2800°C, preventing deformation or melting during high-temperature evaporation processes.

Corrosion Resistance: Tungsten boats exhibit excellent resistance to chemical corrosion, withstanding the erosion of various molten metals and compounds, ensuring stable performance even in corrosive environments.

Good Thermal Conductivity: Tungsten's high thermal conductivity facilitates rapid and uniform heating of the evaporation material, improving evaporation efficiency and ensuring coating uniformity.

Customizability: The shape, size, and material purity can be tailored to meet specific customer requirements, accommodating different evaporation materials and process needs.

Long Lifespan: Thanks to tungsten's wear resistance and corrosion resistance, tungsten boats have a long service life, reducing replacement frequency and lowering production costs.

Tungsten boat can be applied in light industry, electronic industry, military industry, semiconductor industry: coating, sintering precision ceramics, capacitor sintering, bell jar, electron beam spraying. X-ray diagnostic target, crucible, heating element, X-ray radiation shield, sputtering target, electrode, semiconductor base plate, and electron tube component, emission cathode of electron beam evaporation, and cathode and anode of ion implanter.

Vacuum Coating: In optical coatings (such as mirrors and anti-reflective films) and thin-film deposition processes in semiconductor manufacturing, tungsten boats serve as evaporation sources, enabling precise control over film thickness and uniformity.

Thermal Evaporation: In electronics, optics, and research fields, tungsten boats are used in thermal evaporation techniques to vaporize and deposit materials onto substrates, forming thin films.

Chemical Vapor Deposition (CVD): In semiconductor manufacturing and nanotechnology, tungsten boats act as containers or supports for growing thin films on substrates.

High-Temperature Furnaces: Leveraging tungsten's high melting point and resistance to thermal degradation, they are used as heating elements or fixtures in high-temperature furnaces.

Laboratory Applications: In experiments involving high temperatures or vacuum environments, tungsten boats are employed for sample preparation, containment, and heating.

Are you a factory?

Yes, we are a factory, but generally we use our trading company to handle the business abroad. It will be convenient to receive the remittance and arrange the shipment.

What is the MOQ of Tungsten Boats For Vacuum Coating?

A: Depends on quantity, generally, no MOQ limit.

How to pay for it?

A: A bank transfer (T/T) will be acceptable.

What is the delivery time?

A: around 7-20 days, which depends on the quantity and production.

What kind of package is it?

A: Generally, we use a carton case or a plywood case with protective material inside to ensure the safety of the cargo.

What is the lead time?

A: From the order placed to cargo receiving will take around 10-25 days.

What is the delivery method?

A: Generally, we send cargo by UPS, DHL, or FedEx. Also, we can send by sea to a seaport or by air to the closest airport.

What are tungsten boats used for?

Tungsten boats are primarily used as evaporation sources in:

Vacuum coating (optical films, semiconductor layers)

Thermal evaporation (thin-film deposition in electronics & research)

Chemical Vapor Deposition (CVD) (semiconductor & nanotechnology applications)

High-temperature furnaces (as heating elements or fixtures)

Laboratory experiments (sample heating & containment in extreme conditions)

Why is tungsten the preferred material for evaporation boats?

Tungsten is ideal due to its:

Extremely high melting point (3422°C) – resists deformation at ultra-high temperatures

Superior corrosion resistance – withstands molten metals & reactive chemicals

Excellent thermal conductivity – ensures uniform heating & efficient evaporation

Long lifespan – reduces replacement frequency and operational costs

Can tungsten boats be customized?

Yes, tungsten boats can be tailored in terms of:

Dimensions (size, shape, thickness)

Purity levels (standard or high-purity tungsten)

Design (open boats, crucibles, or specialized configurations)

How do tungsten boats improve coating quality?

Precise temperature control → Consistent evaporation rates

Uniform heat distribution → Even film deposition

Chemical inertness → Prevents contamination of evaporated materials

What maintenance is required for tungsten boats?

Regular cleaning to remove residue (using appropriate solvents or thermal treatment)

Avoiding thermal shock (gradual heating/cooling recommended)

Inspecting for wear or cracks to ensure performance

Are tungsten boats suitable for reactive materials?

Yes, tungsten's corrosion resistance makes it suitable for evaporating:

Metals (Al, Ag, Au, Cu)

Oxides & semiconductors

High-purity materials in research applications

How long do tungsten boats last?

Lifespan depends on usage conditions, but thanks to tungsten's durability:

High-temperature stability reduces degradation

Low reaction with evaporated materials extends service life

Proper handling can significantly prolong usability

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