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Rhodium (Rh) Evaporation Material, Pellets, 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 rhodium pellet evaporation material requires strict compatibility with water-cooled copper e-beam hearths and graphite, alumina, boron nitride, or tantalum liners. Deposition source geometry and process parameters must be matched to the material's melting point and density to achieve uniform film deposition without spitting or contamination.
- Hearth and Liner Compatibility: The material must be used exclusively with water-cooled copper e-beam hearths and compatible liners (graphite, Al2O3, BN, or Ta) to prevent chemical reaction or contamination during evaporation.
- Evaporation Source Matching: Deposition source geometry and process route must be aligned with the material's melting point (1966°C) and density (12.4 g/cm³) to avoid droplet formation and ensure consistent film quality.
- Process Parameter Calibration: The Z-ratio of 0.21 requires specific crystal monitor calibration and power ramping schedules to achieve accurate thickness control.
- Purity and Form Verification: The 99.99% purity and pellet form (1-3 mm) must be verified against the deposition system's source loading mechanism to prevent misfeeding or incomplete melting.
Why are rhodium evaporation pellets supplied in a 1–3 mm size range?
The 1–3 mm pellet size is specified to support consistent source loading and controlled evaporation behavior in e-beam systems. This form factor promotes uniform heat distribution and reduces spitting during deposition, which is critical for achieving high-purity thin films in vacuum workflows.
Which liner materials are compatible with rhodium e-beam evaporation using a water-cooled copper hearth?
Compatible liner materials include graphite, Al2O3 (alumina), BN (boron nitride), and Ta (tantalum). These liners withstand the high melting point of rhodium (1,966 °C) and prevent contamination during e-beam evaporation.
What does the Z-ratio of 0.21 indicate for rhodium evaporation process control?
The Z-ratio of 0.21 is a material-specific parameter used to calibrate quartz crystal microbalance (QCM) sensors for accurate film thickness monitoring during e-beam evaporation. This value must be entered into the deposition controller to correct for acoustic impedance mismatch between rhodium and the quartz crystal.
This 99.99% pure rhodium pellet material with 1-3 mm particle size is optimized for e-beam evaporation, offering high purity for precise thin-film deposition but requiring careful matching to source hardware due to its high melting point (1966°C) and specific pellet form.
Positive
- 99.99% Purity for Stoichiometric Control: The 99.99% purity level minimizes contamination in thin films, ensuring reproducible electrical and optical properties in precision deposition processes.
- Defined Pellet Form for Consistent Loading: The 1-3 mm pellet size facilitates uniform source loading and stable evaporation rates in e-beam systems, reducing process variability.
Trade-offs
- High Melting Point Requires Robust E-Beam Hardware: With a melting point of 1966°C, this material necessitates water-cooled copper e-beam hearths and compatible liners, limiting its use to deposition systems capable of sustaining such temperatures.
- Pellet Size Compatibility with Source Geometry: The 1-3 mm pellet size must be confirmed against the deposition source geometry to avoid feeding issues or incomplete evaporation; buyers should verify hardware compatibility before ordering.
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).
