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Tungsten molybdenum alloy (such as Mo-30W) has become the preferred material for key components in semiconductors, photovoltaics, and high-temperature furnaces due to its excellent high-temperature strength, creep resistance, and corrosion resistance. In recent years, with the rapid development of 5G, artificial intelligence, and new energy industries, the demand for tungsten molybdenum alloys has continued to rise.Core application areasSemiconductor manufacturing:Used for heaters, crucibles, and sputtering targets in wafer processing, it is resistant to high temperatures (>1500 ℃) and does not react with silicon, ensuring high-purity wafer production.In extreme ultraviolet lithography (EUV) equipment, the tungsten molybdenum alloy mirror support structure can reduce thermal deformation and improve lithography accuracy.Photovoltaic industry:As a thermal field material for polycrystalline silicon ingot furnaces (such as insulation screens and heating electrodes), its lifespan is more than three times that of traditional graphite materials.In perovskite solar cells, tungsten molybdenum alloy electrodes can withstand high-temperature annealing processes to improve conversion efficiency.High temperature industrial furnace:The heating element and insulation screen used in sintering furnaces and sapphire crystal growth furnaces maintain stable performance at 1800 ℃.Technological breakthroughPowder Injection Molding (PIM): Achieving near net forming of tungsten molybdenum alloy components with complex shapes, reducing machining losses.Surface coating technology: By coating with silicides or rare earth oxides (such as Y ₂ O3), the oxidation resistance is further enhanced and the service life is extended.With the popularization of third-generation semiconductors (SiC/GaN) and new photovoltaic technologies, the tungsten molybdenum alloy market is expected to grow at an average annual rate of 8%, becoming the "invisible pillar" of the high-tech industry chain.
2025-07-16
High density tungsten alloys (such as W-Ni-Fe) are widely used in:In the military industry, the penetration performance of the armor piercing core (WCu90) is improved by 20% compared to traditional materials.Medical protection: Used as shielding components for CT and PET equipment, effectively absorbing gamma rays.Aerospace: Weight blocks and gyroscope components ensure the balance of the aircraft.Future trends include 3D printing technology to achieve complex component molding, and nanocomposite technology to enhance impact resistance, further expanding its application in civilian markets such as new energy vehicle battery counterweights.
Tungsten copper alloys (such as CuW80) combine the high melting point of tungsten (3410 ℃) with the excellent thermal conductivity of copper (170 W/m · K), and perform well in extreme environments. Its typical applications include:High voltage electrical equipment: As a contact material for SF6 circuit breakers, it is resistant to arc erosion and has a lifespan far exceeding that of pure copper.Electric discharge machining (EDM): CuW70 electrode has stable discharge and low loss rate, suitable for precision mold manufacturing.Aerospace: Used for rocket nozzles, gas rudders, copper's evaporative heat absorption effect ("sweating cooling") can withstand instantaneous high temperatures of 3000 ℃.Electronic packaging: Low thermal expansion coefficient (6-12 × 10 ⁻⁶/K) matched with chip materials to reduce thermal stress failure.China Tungsten Intelligent Manufacturing further enhances the performance of tungsten copper alloys through powder metallurgy and rare earth doping (such as La ₂ O Ⅲ), making them irreplaceable in high-end fields such as nuclear fusion devices and armor piercing cores.
In July 2025, Xikong Intelligent Manufacturing and China Academy of Atomic Energy Sciences collaborated to successfully overcome the precision forming problem of high-performance molybdenum alloy nuclear reactor fuel cladding using electron beam additive manufacturing (EBM) technology. This technology uses electron beam gradient energy input and dynamic preheating path planning to achieve a density of over 99.5% for molybdenum alloy components, with mechanical properties comparable to traditional forging levels. At the same time, it realizes integrated molding of complex structures (such as porous cooling channels), reduces weight by 40%, and improves heat dissipation efficiency.Molybdenum alloy has become an ideal material for fourth generation nuclear reactors, such as sodium cooled fast reactors, due to its ultra-high melting point (2600 ℃), radiation resistance, and good compatibility with liquid metal coolant. Traditional manufacturing processes face problems such as low-temperature brittleness and welding defects, while EBM technology significantly reduces production costs (single piece costs have significantly decreased from 150000 yuan), and the yield rate has increased to over 90%. In the future, this technology is expected to expand to the field of refractory metals such as tungsten alloys and molybdenum rhenium alloys, promoting the upgrading of nuclear energy equipment.
