Nickel/Iron Evaporation Pellets 99.5% 1-3mm ATOMFAIR®

This alloy evaporation material requires deposition-source hardware matching to prevent contamination or process failure. The pellets are sensitive to moisture and oxidation, necessitating storage in a dry, inert atmosphere before use.

• Deposition Source Compatibility: Confirm that the evaporation source geometry (e-beam hearth with Al2O3/graphite liner or W/Ta boat) matches the pellet size and material behavior to avoid incomplete evaporation or source damage.
• Environmental Sensitivity: Store pellets in a sealed container under dry, inert gas to prevent surface oxidation, which can degrade film purity and adhesion.

This procedure outlines the safe loading and evaporation of Ni/Fe pellets in a vacuum deposition system. Proper source preparation and chamber conditions are critical to achieve consistent film quality.

Required Equipment: Water-cooled e-beam hearth with Al2O3/graphite liner, Vacuum deposition chamber

1. Inspect Pellets
   Inspect the Ni/Fe pellets for any discoloration or clumping indicating oxidation before loading into the deposition source.
2. Load Pellets into Hearth
   Transfer the pellets into the water-cooled e-beam hearth lined with Al2O3 or graphite, ensuring even distribution for uniform evaporation.
3. Evacuate Chamber
   Evacuate the deposition chamber to a base pressure below 1e-6 Torr to minimize residual gas contamination during evaporation.
4. Preheat Source Gradually
   Preheat the e-beam source gradually to outgas the pellets without causing sudden melting or spitting.
5. Set Deposition Rate
   Set the deposition rate to a stable value between 0.5 and 2.0 Å/s, monitoring with a quartz crystal microbalance.
6. Allow Film to Cool
   Allow the deposited film to cool under vacuum before venting the chamber to prevent thermal stress or oxidation.

This Ni/Fe alloy evaporation material in pellet form (99.5% purity, 1-3 mm) is optimized for e-beam evaporation using a water-cooled hearth with Al2O3/graphite liner, with thermal/resistive evaporation requiring RFQ confirmation due to potential boat compatibility issues.

Positive

• Defined alloy composition and purity: The 99.5% purity and specified Ni/Fe ratio enable reproducible thin-film stoichiometry for research-grade deposition workflows.
• Pellet form factor for source loading: The 1-3 mm pellet size facilitates consistent feeding into e-beam hearths and reduces risk of source bridging compared to finer powders.

Trade-offs

• E-beam evaporation preferred method: Thermal or resistive evaporation requires RFQ and may necessitate alternative boat materials (W/Ta) or liners, adding procurement lead time.
• Z-ratio of 1.00 limits process flexibility: A Z-ratio of 1.00 indicates no correction factor for thickness monitoring, which may reduce accuracy in quartz crystal microbalance feedback for certain deposition rates.

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).