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Nichrome (Ni/Cr) Evaporation Material, Powder, 80%, 325 mesh
Product Type: Alloy 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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Store in a dry, inert atmosphere to prevent oxidation of the fine powder. Use only with water-cooled e-beam hearth and Al2O3 or graphite liner; thermal evaporation requires RFQ confirmation.
- Atmosphere sensitivity: The 325-mesh powder form increases surface area, requiring storage under inert gas or vacuum to avoid moisture uptake and surface oxidation.
- Evaporation source compatibility: E-beam evaporation is preferred using a water-cooled hearth with Al2O3 or graphite liner; tungsten or tantalum boats require RFQ approval due to potential alloying at high temperature.
- Melting point and density constraints: The melting point of 1395 °C and density of 8.5 g/cm³ dictate that the evaporation source must sustain stable heating without spitting or contamination.
- Z-ratio consideration: A Z-ratio of 1.00 indicates no significant acoustic impedance mismatch, but deposition rate monitoring must still be calibrated for the powder form to avoid thickness errors.
This procedure covers loading the powder into a water-cooled e-beam hearth and performing evaporation under vacuum. Confirm deposition source geometry and RFQ requirements before starting.
Required Equipment: Water-cooled e-beam evaporation system with Al2O3 or graphite liner, Inert gas glovebox or vacuum transfer vessel, Quartz crystal microbalance (QCM) thickness monitor
- Prepare the powder
Transfer the required mass of Nichrome powder from the sealed container to the e-beam liner inside an inert atmosphere glovebox to prevent moisture adsorption. - Load the liner into the hearth
Place the Al2O3 or graphite liner containing the powder into the water-cooled e-beam hearth, ensuring full thermal contact for heat dissipation. - Evacuate the chamber
Pump the deposition chamber to a base pressure below 5×10⁻⁶ Torr to minimize residual gas incorporation into the film. - Preheat the powder gradually
Ramp the e-beam power slowly to outgas any adsorbed volatiles without causing powder spitting or sudden melting. - Begin evaporation at target rate
Increase beam power until a stable deposition rate of 1–5 Å/s is achieved, monitoring with the QCM to maintain film thickness uniformity. - Shut down and vent safely
Reduce beam power to zero, allow the hearth to cool for 10 minutes, then vent the chamber with dry nitrogen before retrieving the substrate.
What is the recommended evaporation method for Nichrome (Ni/Cr) powder with an 80% composition?
E-beam evaporation is preferred due to excellent performance when using a water-cooled e-beam hearth with an Al2O3/graphite liner. Thermal/resistive evaporation is available by RFQ using W/Ta boat sources.
Which liner materials are compatible with e-beam evaporation of this Nichrome powder?
For e-beam evaporation, an Al2O3 (alumina) or graphite liner in a water-cooled hearth is specified. For thermal evaporation by RFQ, tungsten (W) or tungsten/tantalum (W/Ta) boats are recommended.
How does the particle size of Powder 325 mesh influence deposition process considerations?
The powder form at Powder 325 mesh requires careful handling during loading to ensure uniform heating and avoid particle ejection into the vacuum chamber. The melting point of 1395°C and density of 8.5 g/cm³ should be considered when setting deposition parameters.
This Nichrome (Ni/Cr) evaporation material in 80% purity, 325 mesh powder form is optimized for e-beam evaporation using a water-cooled hearth with Al2O3/graphite liner, offering excellent performance for thin-film deposition, though thermal/resistive evaporation requires RFQ confirmation and the powder form demands careful handling to avoid contamination.
Positive
- E-beam evaporation optimized: Excellent e-beam performance with water-cooled hearth and Al2O3/graphite liner, ensuring stable deposition for Ni/Cr alloy films.
- Defined particle size for loading: 325 mesh powder form facilitates consistent source loading and evaporation rate control in vacuum systems.
Trade-offs
- Thermal evaporation requires RFQ: Thermal/resistive evaporation is not standard and requires RFQ confirmation, limiting direct compatibility with W/Ta boat setups.
- Powder form handling sensitivity: Powder morphology requires careful handling to prevent contamination or segregation during transfer to deposition sources.
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).
