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Tungsten (W) 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 tungsten evaporation material requires e-beam deposition under high vacuum with compatible graphite, Al2O3, BN, or Ta liners. The 1-3 mm pieces must be handled to maintain 99.99% purity and matched to source geometry.
- Deposition Source Compatibility: Confirm the water-cooled copper e-beam hearth and compatible liner (graphite, Al2O3, BN, or Ta) match the evaporation source geometry.
- Purity Maintenance: Handle the 99.99% pure material under clean conditions to avoid contamination that could affect film quality.
- Size Selection: Select the 1-3 mm piece size appropriate for the source crucible and feed mechanism.
- Process Parameters: Set e-beam evaporation parameters considering the melting point (3410°C) and Z-ratio (0.163) for accurate deposition rate monitoring.
- Pack Size Confirmation: Verify the required quantity and pack size (100g, 500g, 1kg) before ordering to match batch requirements.
Why is the Z-ratio of 0.163 critical for tungsten evaporation in e-beam deposition?
The Z-ratio (0.163) is a material-specific acoustic impedance factor used to calibrate quartz crystal microbalance (QCM) thickness monitors. For tungsten with a low Z-ratio, the tooling factor must be adjusted to avoid significant deposition rate errors, especially given tungsten's high density (19.35 g/cm³) and melting point (3,410°C).
Which liner materials are compatible with tungsten pieces during e-beam evaporation?
Tungsten pieces can be evaporated using a water-cooled copper e-beam hearth with compatible liners including graphite, Al2O3, BN, or Ta. The choice depends on thermal and chemical compatibility with molten tungsten at its 3,410°C melting point.
What storage and handling requirements apply to 99.99% tungsten pieces in 1-3 mm size?
The 99.99% pure tungsten pieces (1-3 mm) should be stored in a clean, dry environment to prevent surface oxidation or contamination. Due to the high density (19.35 g/cm³), the pieces are relatively heavy for their size, and proper PPE should be used when handling to avoid inhalation of fine dust. The product is supplied in sealed packs of 100g, 500g, or 1kg.
Tungsten (W) evaporation material in pieces form with 99.99% purity and 1-3 mm size range, optimized for e-beam evaporation with water-cooled copper hearth. High melting point and density require careful process control and compatible liner materials.
Positive
- High purity 99.99%: Defined 99.99% purity enables reproducible thin-film stoichiometry and minimizes contamination in sensitive deposition applications.
- Optimized piece form for e-beam: Pieces 1-3 mm size range is compatible with water-cooled copper e-beam hearths, facilitating uniform evaporation and source loading.
Trade-offs
- High melting point constraint: Melting point of 3,410°C necessitates e-beam evaporation with water-cooled hearth; incompatible with thermal evaporation sources without specialized liners.
- Dense material handling: Density of 19.35 g/cm³ may require careful source loading to avoid ejection or uneven heating in the e-beam crucible.
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).
