Ultra-high melting point (~2620°C): Can be used safely for long periods in vacuum or inert atmosphere environments at 1600°C–2000°C.
Excellent high-temperature strength and creep resistance: When holding molten materials, it can resist deformation and static pressure from the materials, maintaining its geometric shape.
Extremely low vapor pressure: Minimal volatilization occurs under high-temperature vacuum conditions, preventing contamination of the melt.
Superior corrosion resistance: It has good resistance to many molten metals (e.g., gallium, indium, tin, lithium and alkali metals), non-metals (e.g., sulfur, selenium) and salts.
Good thermal conductivity: Ensures uniform and rapid heat transfer to the materials inside the crucible.
Availability of high purity: High-purity molybdenum (>99.95%) guarantees the purity of the melted materials.
Crystal Growth (Cornerstone of Semiconductor and Optical Crystals)
Sapphire Crystal Growth: A core vessel for the Kyropoulos and Heat Exchange Method (HEM), used for growing large-size sapphire single crystals for LED substrates, optical windows, etc.
YAG Laser Crystal Growth: Applied to grow laser crystals such as yttrium aluminum garnet.
Semiconductor Compound Single Crystals: Serves as a container for holding melts and boron oxide encapsulants in the Liquid Encapsulated Czochralski (LEC) process for materials like gallium arsenide (GaAs) and indium phosphide (InP).
Smelting and Purification of Rare Metals and Alloys
Rare Earth Metal Smelting: Smelts rare earth metals including lanthanum, cerium, neodymium and their alloys.
High-purity Metal Purification: Used for zone melting purification of high-melting-point metals such as tantalum and niobium.
Special Alloy Preparation: Smelts reactive alloys such as titanium-based and zirconium-based alloys (must be processed in vacuum or inert atmosphere).
Photovoltaics and Thin Film Technology
CIGS Thin-film Solar Cells: Utilized in the co-evaporation process for holding and evaporating source materials such as copper, indium, gallium and selenium.
Vacuum Coating Evaporation Sources: Acts as resistance evaporation boats for holding evaporation materials such as gold, silver and aluminum.
High-temperature Sintering and Powder Metallurgy
Special Ceramic Sintering: Serves as sintering plates or saggers for high-performance ceramics such as aluminum nitride and beryllium oxide.
Silicon Carbide Crystal Growth: A key component in the Physical Vapor Transport (PVT) process.
Analytical Testing and Scientific Research
High-temperature Thermal Analysis: Used as sample holders for Differential Thermal Analysis (DTA) and Thermogravimetric Analysis (TGA).
Laboratory-scale Small Smelting: Applied to gram-scale to kilogram-scale experiments for new material exploration.
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