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Molybdenum (Mo) Evaporation Material, Pellets, 99.95%, 1-3 mm
Product Type: Pure Metal Evaporation Material
Research-grade laboratory product
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LABORATORY PROCUREMENT SUPPORT
For material selection, deposition-source matching, pack-size confirmation or quotation support, contact our technical sales team.
INQUIRY: inquiry@atomfair.com
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Manufacturer: Atomfair LLC
Brand: ATOMFAIR®
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Molybdenum pellets require compatibility with e-beam evaporation sources and specific liner materials. Proper handling and deposition parameters must be matched to prevent contamination and ensure film quality.
- Deposition Source Compatibility: Use water-cooled copper e-beam hearth with graphite, Al2O3, BN, or Ta liner as compatible.
- Melting Point Consideration: The material's melting point of 2,617°C requires sufficient electron beam power and thermal management.
- Purity and Form Verification: Confirm the 99.95% purity and pellet size (1-3 mm) meet the application requirements before loading.
- Vacuum Environment Requirement: E-beam evaporation must be performed under high vacuum to achieve proper thin-film deposition.
- Z-Ratio Calibration: The Z-ratio of 0.257 should be used for quartz crystal microbalance thickness monitoring calibration.
Follow these steps to safely load and evaporate molybdenum pellets in an e-beam deposition system. These instructions assume the user has access to a compatible vacuum system and appropriate safety training.
Required Equipment: E-beam evaporation system with water-cooled copper hearth, Compatible liner (graphite, Al2O3, BN, or Ta), Vacuum pump system, Quartz crystal microbalance thickness monitor
- Inspect Pellets
Inspect the molybdenum pellets to confirm the purity, form, and size range match the specified 99.95% purity and 1-3 mm pellets. - Install Compatible Liner
Select and install a compatible liner made of graphite, Al2O3, BN, or Ta into the water-cooled copper e-beam hearth. - Load Pellets
Load the appropriate quantity of pellets into the liner, ensuring even distribution for uniform evaporation. - Evacuate Chamber
Evacuate the deposition chamber to the required high vacuum level for e-beam evaporation. - Apply Electron Beam
Apply the electron beam gradually to heat the molybdenum to its melting point of 2,617°C and adjust power to achieve the desired deposition rate.
What is the significance of the Z-ratio value of 0.257 for molybdenum evaporation in e-beam deposition?
The Z-ratio of 0.257 is a critical parameter for quartz crystal microbalance (QCM) thickness monitoring, as it corrects for the acoustic impedance mismatch between the deposited material and the quartz crystal. This value, specific to molybdenum, ensures accurate film thickness measurement during e-beam evaporation. The product specification lists the Z-ratio as 0.257, which must be entered into the deposition controller for precise rate and thickness control.
Which crucible liner materials are recommended for evaporating molybdenum pellets at 2,617°C?
The compatible liner materials for molybdenum evaporation include graphite, Al2O3 (alumina), BN (boron nitride), and Ta (tantalum), as stated in the product specifications. These materials can withstand the high melting point of molybdenum (2,617°C) and are suitable for use with a water-cooled copper e-beam hearth. The choice depends on the specific deposition system and contamination tolerance.
How do the available pack sizes (100 g, 500 g, 1 kg) affect the cost per gram for molybdenum evaporation pellets?
The cost per gram decreases significantly with larger pack sizes: 100 g at $330 yields $3.30/g, 500 g at $800 yields $1.60/g, and 1 kg at $1,050 yields $1.05/g. This pricing tier, explicitly provided in the product specifications, allows researchers to optimize procurement based on required quantity and budget. The minimum order quantity is 100 g.
This Molybdenum evaporation material (99.95% purity, pellets 1-3 mm) is suitable for e-beam evaporation with water-cooled copper hearth and compatible liners, but the high melting point and specific Z-ratio require careful process parameter tuning and source compatibility verification.
Positive
- High purity and defined pellet form: 99.95% purity and 1-3 mm pellet size ensure consistent evaporation behavior and source loading for thin-film deposition.
- Multiple liner material compatibility: Compatible with graphite, Al2O3, BN, and Ta liners, providing flexibility in evaporation source setup.
Trade-offs
- High melting point requires e-beam evaporation: Melting point of 2,617°C necessitates high-energy e-beam evaporation; not suitable for thermal evaporation or low-power systems.
- Z-ratio and density require process calibration: Z-ratio of 0.257 and density of 10.2 g/cm³ may require adjustments to quartz crystal microbalance (QCM) monitoring for accurate film thickness control.
Every advanced material, component, equipment, and instrument in our catalog is backed by rigorous testing. We maintain strict internal quality management frameworks and align with CE conformity metrics to deliver transparent, reproducible performance data via our public open-science repository.
To request raw batch performance data, submit formal vendor registration paperwork, or execute a fast-turnaround R&D manufacturing loop, contact us at inquiry@atomfair.com.
Item is dispatched under the Atomfair Shipping & Delivery Framework (Free worldwide shipping on orders over $59 USD excl. heavy equipment). Return is governed by the Atomfair Return & Refund Policy (7-day technical return window).
