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Hafnium (Hf) Evaporation Material, Pellets, 99.9%, 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 document outlines the processing and compatibility constraints for hafnium evaporation pellets used in e-beam deposition. Proper source matching and parameter control are required to achieve consistent film quality.
- Evaporation Source Compatibility: Use a water-cooled copper e-beam hearth with a compatible liner such as graphite, Al2O3, BN, or Ta.
- Melting Point Consideration: The melting point of 2,227°C must be accommodated by the deposition system's power and thermal management.
- Z-Ratio Calibration: A Z-ratio of 0.36 should be entered into the deposition controller for accurate thickness monitoring.
- Density Influence: The density of 13.31 g/cm³ affects source loading calculations and film density assumptions.
- Process Matching: Confirm that the evaporation source geometry and process route are compatible with the material's behavior and film requirements.
How does the Z-ratio of 0.36 affect the calibration of quartz crystal monitors when depositing hafnium from e-beam evaporation?
The Z-ratio of 0.36 for hafnium is a material-specific acoustic impedance factor used to correct the thickness reading from a quartz crystal microbalance. For accurate deposition rate and film thickness monitoring, the instrument must be programmed with this Z-ratio value; otherwise, a systematic error proportional to the ratio deviation will occur. The product specification explicitly lists a Z-ratio of 0.36.
Which liner materials are compatible with the e-beam evaporation of hafnium pellets?
The compatible liner materials for the e-beam evaporation of hafnium pellets include graphite, Al2O3, BN, and Ta. The source specifies that a water-cooled copper e-beam hearth is preferred, and these liners are listed as compatible options.
What is the melting point of hafnium evaporation pellets and what does it imply for deposition system design?
The melting point of hafnium pellets is listed as 2,227 (as stated in the product specifications). This high melting point requires a high-energy e-beam source and a water-cooled copper hearth to prevent thermal damage, which is why the product recommends e-beam evaporation with a water-cooled copper hearth.
Atomfair's Hafnium pellets (99.9%, 1–3 mm) are formulated for e-beam evaporation in vacuum thin-film deposition, offering a defined purity and pellet form factor to support reproducible process development. The high melting point (2,227°C) and Z-ratio (0.36) require careful matching of deposition hardware and process parameters.
Positive
- High-purity 99.9% Hafnium pellets: The 99.9% purity specification enables reproducible thin-film properties for research deposition, with clear traceability to standard grade.
- Defined pellet form and size range: Supplied as 1–3 mm pellets, this form factor facilitates consistent loading into e-beam hearths and minimizes feed issues during evaporation.
Trade-offs
- Mandatory pre-quotation verification: Buyers must confirm deposition source geometry, liner compatibility, and pack size before ordering, as the material requires specific hardware matching.
- High melting point requires robust e-beam: With a melting point of 2,227°C, this material demands high-power e-beam evaporation systems and may not be suitable for thermal evaporation without proper source design.
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).
