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Barium Oxide (BaO) Evaporation Material, Pieces, 99.99%, 1-3 mm
Product Type: Compound 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 Oxide (BaO) evaporation material requires careful selection of deposition source hardware due to its high melting point and poor performance in e-beam evaporation. The material is supplied as pieces (1-3 mm) and must be matched to compatible liners or boats for reliable thin-film deposition.
- Deposition Source Compatibility: Use an e-beam hearth with graphite, Al2O3, or BN liner, or a W/Mo/Ta boat for thermal evaporation.
- Evaporation Method Preference: E-beam evaporation is preferred but yields poor performance; thermal evaporation is available by RFQ.
- Material Melting Point and Density: The melting point of 1,918°C and density of 5.72 g/cm³ influence boat loading and evaporation rate.
- Physical Form and Size: The pieces size range of 1-3 mm must be compatible with the source crucible or boat geometry.
- Pre-Use Compatibility Verification: Verify deposition-source compatibility, including liner material and boat type, before using the material.
Why is BaO evaporation material listed as 'E-beam evaporation preferred' but with 'E-beam performance: Poor'?
Barium Oxide (BaO) has a high melting point of 1,918°C and relatively low thermal conductivity, making e-beam evaporation challenging. The product specification indicates 'E-beam performance: Poor' because the material can be difficult to evaporate uniformly under e-beam heating. However, e-beam evaporation is listed as the preferred method because it can achieve the necessary temperatures with proper liner selection (graphite, Al2O3, or BN). Thermal evaporation is available by RFQ for applications where e-beam is not suitable.
What crucible or liner materials are compatible with evaporating BaO pieces?
For e-beam evaporation, BaO pieces should be used with a hearth lined with graphite, Al2O3, or BN. For thermal evaporation, a boat made of W, Mo, or Ta is recommended. These materials withstand the high temperatures required and minimize chemical reaction with the BaO. The product specification explicitly lists these liner and boat options.
This BaO evaporation material at 99.99% purity in 1-3 mm pieces offers defined composition for thin-film deposition, but its poor E-beam performance and specific liner requirements necessitate careful source matching and potential thermal evaporation by RFQ.
Positive
- High purity 99.99%: The 99.99% purity minimizes contamination in deposited films, critical for research-grade thin-film applications where trace impurities can alter electrical or optical properties.
- Controlled piece size 1-3 mm: The defined 1-3 mm piece form facilitates consistent source loading and evaporation rate control in E-beam or thermal evaporation systems, reducing process variability.
Trade-offs
- Poor E-beam evaporation performance: E-beam evaporation is listed as preferred but with poor performance; users may need to pursue thermal evaporation via RFQ, adding process qualification steps.
- Specific liner and boat material required: Evaporation requires an E-beam hearth with graphite, Al2O3, or BN liner, or W/Mo/Ta boat, imposing additional procurement and compatibility checks before use.
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).
