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Hafnium (Hf) 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 evaporation material requires a water-cooled copper e-beam hearth with a compatible liner material such as graphite, alumina, BN, or tantalum. The high melting point of 2,227°C and Z-ratio of 0.36 must be accounted for in deposition process parameters to ensure accurate film thickness control.
- Liner Compatibility: Select a liner material compatible with hafnium at elevated temperatures; graphite, Al2O3, BN, or Ta are suitable.
- Melting Point Requirement: The melting point of 2,227°C necessitates a high-temperature e-beam evaporation source.
- Z-Ratio Calibration: Use the Z-ratio of 0.36 for quartz crystal microbalance calibration to achieve accurate film thickness.
- Deposition Method: E-beam evaporation is the preferred method; confirm compatibility with alternative methods before use.
- Process Matching: Match the evaporation source hardware and process route to the material's melting behavior and film requirements.
What is the Z-ratio of hafnium and how does it affect e-beam evaporation process control?
The Z-ratio for this hafnium evaporation material is 0.36. This parameter is used in quartz crystal microbalance (QCM) monitoring to correct for acoustic impedance mismatch between the deposited material and the sensor crystal. Setting the correct Z-ratio in the deposition controller is essential for accurate in-situ thickness measurement during e-beam evaporation.
Which liner materials are compatible with hafnium evaporation in an e-beam system?
The product specification lists graphite, Al2O3, BN, and Ta as compatible liner materials for use with a water-cooled copper e-beam hearth. Given hafnium's high melting point of 2,227 °C, the liner must withstand extreme temperatures while maintaining chemical inertness to avoid contamination.
Why is the hafnium evaporation material supplied as 1–3 mm pieces?
The 1–3 mm piece size is specified to support reliable source loading and consistent evaporation in e-beam hearths or liners. This form factor facilitates uniform melting and deposition rates, and the material is available in pack sizes from 25 g to 1 kg to accommodate different experimental run sizes.
Hafnium evaporation material at 99.95% purity in 1-3 mm pieces is suitable for e-beam deposition with water-cooled copper hearth and compatible liners; its high melting point and Z-Ratio require careful process calibration.
Positive
- High purity 99.95%: Purity of 99.95% minimizes contamination in thin films, supporting consistent electrical and structural properties in deposited layers.
- Controlled particle size 1–3 mm: The specified 1–3 mm piece size facilitates uniform loading in e-beam hearths and predictable evaporation rates during deposition.
Trade-offs
- High melting point requires robust equipment: Melting point of 2,227°C demands high-power e-beam evaporation systems and may limit compatibility with lower-energy deposition setups.
- Source geometry and liner compatibility required: The material must be matched to water-cooled copper e-beam hearths and compatible liners (graphite, Al2O3, BN, Ta); unsuitable for standard resistive or sputtering sources without modification.
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).
