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Molybdenum (Mo) Evaporation Material, Pieces, 99.99%, 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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This molybdenum evaporation material is intended for use in e-beam deposition systems with a compatible water-cooled copper hearth or graphite/alumina/BN/Ta liner. The material's high melting point (2617°C) and Z-ratio (0.257) affect evaporation behavior and must be matched to the deposition source hardware and process parameters.
- Deposition Source Compatibility: The material must be used with a water-cooled copper e-beam hearth or a compatible liner made of graphite, Al2O3, BN, or Ta.
- Evaporation Method Preference: E-beam evaporation is the preferred method for this material due to its high melting point and evaporation characteristics.
- Melting Point Consideration: The melting point of 2617°C requires sufficient source power and temperature control to achieve stable evaporation.
- Z-Ratio for Rate Monitoring: The Z-ratio of 0.257 must be used in deposition rate monitoring algorithms to ensure accurate film thickness control.
- Physical Form and Size: The 1-3 mm pieces are designed for loading into e-beam hearths; verify that the source geometry accommodates this size range.
Why is e-beam evaporation preferred for molybdenum evaporation material with a melting point of 2,617°C?
E-beam evaporation is preferred because molybdenum's high melting point (2,617°C) requires concentrated energy density that thermal boats cannot reliably achieve without risk of alloying or failure. The water-cooled copper e-beam hearth prevents crucible contamination and allows use of compatible liners such as graphite/Al2O3/BN/Ta to manage thermal stress and chemical reactivity during deposition.
How does the Z-Ratio of molybdenum (0.257) affect thickness monitoring during e-beam evaporation?
The Z-Ratio of 0.257 corrects the acoustic impedance mismatch between the quartz crystal sensor and the deposited molybdenum film; this value must be entered into the deposition controller to ensure accurate real-time thickness measurement. Using an incorrect Z-Ratio can lead to systematic film thickness errors of up to several percent depending on tooling factor and material density (10.2 g/cm³).
What handling precautions are required for high-purity molybdenum pieces (99.99%, 1–3 mm) before vacuum deposition?
Molybdenum pieces at this purity level must be stored in a clean dry environment and handled with powder-free gloves or clean tweezers to avoid surface contamination that could degrade film quality. Pre-deposition outgassing under vacuum is recommended to remove adsorbed moisture and surface oxides; the pieces should be loaded directly into a compatible liner (graphite/Al2O3/BN/Ta) without exposure to ambient air longer than necessary.
Molybdenum (Mo) evaporation material in 99.99% purity, 1-3 mm pieces, optimized for e-beam evaporation using water-cooled copper hearths with compatible liners. The 2,617°C melting point and 0.257 Z-ratio necessitate high-energy deposition equipment and careful process parameter matching.
Positive
- High purity for consistent films: 99.99% purity minimizes contamination in thin-film deposition, ensuring reproducible electrical and optical properties for research-grade applications.
- Controlled piece size for source loading: 1-3 mm pieces facilitate uniform feeding in e-beam hearths and reduce risk of spitting or uneven evaporation rates.
Trade-offs
- Requires compatible e-beam infrastructure: Optimal use demands a water-cooled copper e-beam hearth with graphite, Al2O3, BN, or Ta liner, limiting direct compatibility with other evaporation sources.
- High melting point and Z-ratio constraints: Melting point at 2,617°C and Z-ratio of 0.257 require high-energy e-beam power and careful process tuning to achieve stable evaporation rates.
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).
