Molybdenum Crucible for Sapphire Growth

Short Description:

High-purity molybdenum crucibles (99.95% Mo) offer exceptional performance in extreme high-temperature environments up to 1900°C, featuring superior thermal conductivity and minimal contamination for critical applications like sapphire crystal growth, CVD processes, and rare earth melting. Our ASTM B387 certified crucibles are available in custom sizes (50-5000ml) with optional MoSi₂ oxidation-res...

Material Grade: 99.95% Mo (Pure) | MoLa (Lanthanum Alloy) | TZM Alloy
Density: 10.2 g/cm³
Diameter: customizable
Application: CVD/Sapphire Growth
Melting Point : 2620°C

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Product Details

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Molybdenum Crucible for Sapphire Growth

Special Features:

1. Ultra-High Purity - Minimizes contamination in sensitive processes

2. Thermal Shock Resistant - Withstands rapid temperature changes

3. Custom Coatings Available - MoSi₂ for oxidation protection (up to 1700°C)

4. Precision Manufacturing - ±0.5% dimensional tolerance

Technical Data

Parameter	Specification	Remarks
Material Composition	99.95% Pure Mo / TZM Alloy (Mo-0.5Ti-0.1Zr)	High-purity 99.99% available on request
Density	10.2 g/cm³	Actual: 9.8-10.1 g/cm³ (process dependent)
Melting Point	2620°C	Pure molybdenum
Max Working Temperature	1900°C (inert/vacuum)	1700°C with MoSi₂ coating in oxidizing env.
Thermal Conductivity	138 W/m·K @ 20°C	Decreases to 98 W/m·K @ 1000°C
Thermal Expansion	4.8×10⁻⁶/°C (20-1000°C)	Matches silicon/sapphire CTE

Primary Applications:
• Semiconductor: CVD reactors, MOCVD, wafer processing
• Crystal Growth: Sapphire, LED, laser crystals
• Vacuum Metallurgy: Rare earth melting, alloy production
• Research Labs: High-temperature material testing

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