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Barium (Ba) Evaporation Material, Pellets, 99.5%, 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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Barium pellets are highly reactive with air and moisture, requiring storage under inert atmosphere to prevent degradation. Handling must be performed in a controlled environment with appropriate personal protective equipment to avoid exposure.
- Atmosphere Sensitivity: Store under inert gas (e.g., argon) to prevent oxidation and degradation.
- Moisture Sensitivity: Exposure to moisture may cause rapid degradation and safety hazard.
- Containment Requirement: Use only sealed, inert packaging to maintain material integrity.
This procedure describes the safe handling and deposition of barium pellets for vacuum thin-film coating. The material is reactive and must be processed under inert atmosphere to prevent oxidation.
Required Equipment: Glovebox with inert atmosphere (argon or nitrogen), Evaporation source (Ta/Mo/W boat or crucible), Vacuum deposition system, Personal protective equipment (gloves, safety glasses)
- Inspect Packaging
Inspect the sealed inert packaging for any damage before opening. - Transfer to Glovebox
Transfer the pellets to a glovebox filled with inert gas for safe handling. - Load Evaporation Source
Load the appropriate amount of pellets into a Ta/Mo/W boat or crucible. - Evacuate Chamber
Seal the deposition chamber and evacuate to the required base pressure. - Apply Power
Apply power to the evaporation source using the recommended thermal or e-beam method. - Monitor Deposition
Monitor the deposition rate and film thickness during evaporation.
How does the 99.5% purity of these barium pellets affect thin film quality compared to higher purity grades for applications like photocathodes or getter layers?
The 99.5% purity is suitable for standard thermal or e-beam evaporation where trace impurities are acceptable. The product description explicitly states that this purity level allows comparison between standard, high-purity, and RFQ-controlled grades, and that higher purity can be requested via RFQ for critical applications. For photocathodes or getter films requiring minimal contamination, an RFQ for higher-purity material is recommended. The provided melting point (725 °C) and density (3.51 g/cm³) support process matching.
Can these barium pellets be used directly in a standard e-beam evaporator, or do they require a thermal boat setup?
The pellets are compatible with both thermal/resistive evaporation and low-power e-beam, but e-beam use requires an RFQ to confirm low-power compatibility. The source specifies Ta/Mo/W boat or crucible as the evaporation source and includes an inert handling package. The 1–3 mm pellet size is designed for direct source loading, but buyers should verify deposition source geometry and power requirements before ordering.
What are the specific storage and handling requirements for these barium pellets to prevent oxidation or moisture reaction?
The pellets are supplied with an inert handling package to minimize exposure to air and moisture during storage and transfer. The product description advises reviewing the safety data sheet for detailed handling, storage, and shipment conditions. Because barium is a reactive alkaline earth metal, storage in a dry, inert atmosphere (e.g., argon glovebox) is implied, and the documentation review section confirms that SDS and shipment conditions can be checked against laboratory use requirements.
Barium (Ba) evaporation material in pellet form, 99.5% purity, 1-3 mm size, suitable for thermal or e-beam deposition with Ta/Mo/W sources. Requires inert handling and careful source geometry matching.
Positive
- High Purity and Defined Form: The 99.5% purity and pellet form with 1-3 mm sizing provide a well-defined material for reproducible thin-film deposition in vacuum processes.
- Broad Evaporation Method Compatibility: Compatible with thermal/resistive evaporation and low-power e-beam using Ta/Mo/W boats or crucibles, offering flexibility in deposition system integration.
Trade-offs
- Reactive Material Handling: Barium is a reactive metal; inert handling and storage conditions are required to prevent oxidation or contamination, necessitating appropriate laboratory infrastructure.
- Deposition Source Geometry Check: The pellet size (1-3 mm) and form must be verified against the specific boat or crucible dimensions and deposition source geometry to ensure proper loading and evaporation.
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).
