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Spinel (MgAl2O4) Evaporation Material, Pieces, 99.9%, 12 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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Store material in a dry, inert atmosphere to prevent moisture adsorption that may cause outgassing or spitting during evaporation. Use an E-beam hearth with a graphite, Al2O3, or BN liner to avoid chemical attack of the crucible at elevated temperatures.
- Crucible Compatibility: Crucible or boat material must be chemically inert to molten MgAl2O4 at deposition temperatures to prevent contamination and crucible failure.
- Evaporation Source Match: E-beam evaporation is preferred due to the high melting point of spinel; thermal evaporation requires prior RFQ to verify source-material compatibility.
Load the 12 mm spinel pieces evenly into a graphite, Al2O3, or BN liner seated in an E-beam hearth. Gradually ramp beam current to achieve controlled evaporation without thermal shock to the target material.
Required Equipment: E-beam hearth with graphite, Al2O3, or BN liner
- Inspect Liner Integrity
Inspect the graphite, Al2O3, or BN liner for cracks or contamination before placing it into the E-beam hearth. - Load the Material
Load the 12 mm spinel pieces into the liner, distributing them evenly to avoid shadowing or localized overheating. - Pump to High Vacuum
Pump the chamber to a base pressure below the evaporation onset threshold to minimize oxygen incorporation into the film. - Ramp Beam Current Slowly
Ramp the E-beam current gradually to outgas the material at low power before reaching evaporation temperature. - Evaporate at Controlled Rate
Increase beam current to achieve the target deposition rate while monitoring chamber pressure for sudden outgassing events.
What is the optimal evaporation method for Spinel (MgAl2O4) pieces, and why is E-beam preferred over thermal evaporation?
E-beam evaporation is the preferred method for Spinel (MgAl2O4) pieces because it provides good deposition performance with controlled heating, reducing the risk of thermal decomposition or incomplete evaporation. Thermal evaporation is available only by RFQ and is not recommended as a standard route, as the material's high melting point (implied by spinel structure) and dense form (density 8 g/cm³) require the focused energy of an electron beam for consistent film quality. The product specification lists 'E-beam evaporation preferred; thermal evaporation by RFQ' and rates E-beam performance as 'Good'.
Which liner or boat materials are compatible with E-beam evaporation of Spinel (MgAl2O4) pieces?
For E-beam evaporation of Spinel (MgAl2O4) pieces, the compatible hearth liners include graphite, Al2O3, or BN, and the compatible boats include tungsten (W), molybdenum (Mo), or tantalum (Ta). These materials withstand the high temperatures and reactive nature of the molten spinel without contaminating the film. The product description explicitly states: 'E-beam hearth with graphite/Al2O3/BN liner or W/Mo/Ta boat'.
What pack size should I order for deposition runs, and how does the cost per gram scale with quantity?
Available pack sizes are 100g, 500g, and 1kg, with tiered pricing: 100g at USD 390 (USD 3.90/g), 500g at USD 1000 (USD 2.00/g), and 1kg at USD 1350 (USD 1.35/g). The cost per gram decreases significantly with larger quantities, making the 1kg pack the most economical for high-volume or repeated deposition runs. However, users should confirm the required total mass per batch and deposition source geometry before ordering, as the material is supplied as Pieces 12 mm and may need to be loaded into the hearth in specific amounts.
Spinel (MgAl2O4) evaporation material in 12 mm pieces at 99.9% purity is evaluated for E-beam deposition, offering good performance with graphite, Al2O3, or BN liners, but requiring careful source geometry matching and thermal evaporation only by RFQ.
Positive
- Defined material identity and form: Spinel (MgAl2O4) as 12 mm pieces ensures clear procurement matching for vacuum deposition workflows, with specified purity of 99.9% for standard laboratory use.
- Good E-beam evaporation performance: Rated as 'Good' for E-beam evaporation with compatible hearth liners (graphite, Al2O3, BN) or W/Mo/Ta boats, supporting reliable thin-film deposition.
Trade-offs
- Thermal evaporation requires RFQ: Thermal evaporation is not standard and must be requested via RFQ, limiting process flexibility for labs without E-beam capability.
- Deposition source compatibility must be verified: Buyers must confirm source geometry and liner/boat compatibility before ordering, as mismatched hardware can affect deposition quality or cause contamination.
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).
