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Tungsten (W) Evaporation Material, Pieces, 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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This tungsten evaporation material must be processed via e-beam evaporation under high vacuum using a water-cooled copper hearth. Compatible liners include graphite, Al2O3, BN, or Ta, and the material's Z-ratio of 0.163 requires calibration for accurate film thickness monitoring.
- Deposition Method Preference: E-beam evaporation is the preferred deposition method for this material.
- Hearth Requirement: The material requires a water-cooled copper e-beam hearth for safe operation.
- Liner Compatibility: Compatible liner materials include graphite, Al2O3, BN, or Ta to prevent contamination.
- Film Thickness Monitoring: The Z-ratio of 0.163 must be used for quartz crystal microbalance (QCM) thickness monitoring.
- Melting Point Consideration: The high melting point of 3410°C necessitates high-power electron beam settings.
What evaporation method is preferred for this tungsten material, and why is a water-cooled copper hearth recommended?
E-beam evaporation is the preferred method for this tungsten material. A water-cooled copper e-beam hearth is recommended because tungsten has a melting point of 3,410°C, and the water-cooling prevents hearth damage while enabling controlled evaporation.
Which liner materials are compatible with these tungsten evaporation pieces?
Compatible liner materials include graphite, Al2O3, BN, and Ta. These liners can withstand the high melting point of tungsten (3,410°C) and are suitable for use with a water-cooled copper e-beam hearth.
Why is this tungsten material supplied as pieces in a 1–3 mm size range?
The pieces form and 1–3 mm size range are specified to support source loading and evaporation review. The small piece size ensures uniform melting and consistent deposition rates in e-beam evaporation systems.
This tungsten evaporation material (99.95% purity, 1-3 mm pieces) is suitable for e-beam deposition of refractory metal films, but its high melting point (3410°C) and Z-ratio (0.163) demand careful process control and compatible liner selection.
Positive
- High purity 99.95%: The 99.95% tungsten specification minimizes film contamination, supporting consistent electrical and mechanical properties in deposited layers.
- Defined particle size 1-3 mm: The specified 1-3 mm piece size ensures uniform source loading and predictable evaporation behavior in e-beam hearths, reducing process variability.
Trade-offs
- High melting point constraint: With a melting point of 3410°C, this material requires high-power e-beam evaporation systems and may necessitate water-cooled hearths to prevent thermal damage to source components.
- Z-ratio process sensitivity: The Z-ratio of 0.163 indicates a notable acoustic impedance mismatch, requiring careful quartz crystal microbalance calibration to achieve accurate thickness monitoring during deposition.
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).
