Molybdenum Crucible For Vacuum Coating

Molybdenum Crucible for Vacuum Coating is a high-performance high-temperature container. With its high purity, high density, excellent thermal properties, and fine surface treatment, it plays a crucial role in semiconductor manufacturing, crystal growth, optical coatings, and electronic plating. Its high-precision dimensions and corrosion resistance further enhance its reliability and cost-effectiveness in industrial applications.

Spinned crucibles are made of high-quality plates through exclusive spinning crucible equipment of our company. The spinning crucibles of our company feature accurate appearance, uniform thickness transition, smooth surface, high purity, strong creep resistance, etc.
 

High Purity and High Density: The purity of this crucible typically exceeds 99.95%. The high-purity molybdenum powder ensures that no impurities are introduced at high temperatures, which is critical for processes requiring ultra-pure coatings. The high-density structure maintains excellent structural integrity under extreme heat, minimizing thermal expansion and deformation risks.

Superior Thermal Properties: The molybdenum crucible boasts a high melting point, low vapor pressure, and outstanding thermal conductivity. These characteristics ensure stability at elevated temperatures while enabling uniform heating and evaporation of coating materials. The low vapor pressure means minimal molybdenum evaporation at high temperatures, reducing contamination risks in the coating process.

Surface Treatment: The finely ground surface ensures enhanced stability and precise control during vacuum coating. A smooth inner surface helps prevent residue buildup, simplifies cleaning, and is particularly vital for high-purity coating applications. Additionally, the polished surface minimizes coating material adhesion, improving coating uniformity and quality.

Dimensional Precision: The product features precise dimensions, smooth inner and outer walls, and a crack-free structure, all of which are crucial for improving crystal growth success rates and quality control. High-precision dimensions ensure a perfect fit with equipment, reducing heat loss and material waste.

Corrosion Resistance: Molybdenum exhibits excellent corrosion resistance, maintaining stability in various chemical environments. This makes the crucible suitable for a wide range of coating materials, including corrosive metals and alloys.

Reusability: Thanks to its high purity and density, the molybdenum crucible can be reused multiple times with proper maintenance, significantly lowering production costs.

Semiconductor Manufacturing:
In semiconductor manufacturing, molybdenum crucibles are used in ultra-high vacuum evaporation processes to achieve precise thin-film deposition. They ensure uniform evaporation of semiconductor materials (such as silicon, germanium, etc.) at high temperatures, forming high-quality thin films. These films are critical for the performance of semiconductor devices, including transistors, integrated circuits, and optoelectronic components.

Crystal Growth:
Widely applied in industrial furnaces such as sapphire single-crystal growth furnaces, quartz glass melting furnaces, and rare-earth smelting furnaces. In sapphire single-crystal growth, high-purity, high-density molybdenum crucibles play a key role in improving crystal growth success rates and quality control. The crucibles withstand high temperatures and chemical reactions, ensuring contamination-free crystal growth.

Optical Coatings:
Used in the production of advanced optical coatings for high-power lasers and precision optical devices. Molybdenum crucibles enable the deposition of ultra-thin, uniform material layers (e.g., alumina, silica), enhancing the reflectivity, transmittance, and durability of optical components.

Electron Beam Evaporation:
In electron beam evaporation, molybdenum crucibles endure high-temperature environments to ensure uniform material evaporation. They are suitable for depositing various metals and alloys (e.g., titanium, aluminum, copper) and are widely used in aerospace, automotive manufacturing, and electronics industries.

Research & Development:
In materials science and physical chemistry research, molybdenum crucibles are frequently employed in high-temperature experiments and material synthesis. Their high purity and stability make them ideal experimental tools, accurately simulating industrial high-temperature conditions to support the development of new materials.

FAQ

Are you a factory or manufacturer?

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 delivery method?

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

Why Is Your Product So Cost-Effective?

We cut out the middlemen in the end-to-end manufacturing process. Rather than obtaining semi-finished goods from other suppliers, we obtain our raw material of APT powder directly from its source.

Do You Do Spot Quality Checks Or Full Checks?

100% full inspection. Inspectors will check the finished product individually, to ensure they adhere to all parameters. All unqualified products are discarded.

How Do You Ensure Your Lead Time?

We have an efficient Order Management System, from material preparation to machining, and finally to a full inspection. Every stage of production is strictly monitored and controlled to give you an accurate delivery time.

What is the MOQ of Ground Molybdenum Crucible 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 is kind of the package?

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

What is the lead time?

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

How does the surface finish affect coating performance?

A finely ground interior surface:

Ensures uniform evaporation of coating materials.

Reduces residual buildup for easier cleaning.

Improves coating adhesion and consistency.

Can molybdenum crucibles be reused?

Yes, due to their high purity and density, they can be reused multiple times with proper maintenance, reducing long-term costs.

What temperature range can these crucibles withstand?

Molybdenum crucibles can operate continuously at temperatures up to 2,000°C in vacuum or inert atmospheres.

Are there any limitations to using molybdenum crucibles?

Not suitable for oxidizing environments above 400°C (requires protective atmosphere).

Higher initial cost compared to graphite or ceramic alternatives, but offers better longevity and performance.

How should molybdenum crucibles be stored and handled?

Store in a dry, clean environment to prevent oxidation.

Handle with gloves to avoid contamination.

Clean with appropriate solvents (e.g., ethanol, acetone) before reuse.

What sizes and customizations are available?

Standard sizes range from 10 mL to 5 L, with custom dimensions, wall thicknesses, and surface finishes (e.g., polished, machined) available upon request.

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