Molybdenum

Molybdenum is a versatile metal that possesses several unique properties, making it highly valuable in various industries. It is often used in its pure form or as an alloy, offering exceptional chemical characteristics and finding applications in glass fiber production, TFT-LCD manufacturing, sapphire production, CIGS solar cells, and the vacuum furnace field. Let’s explore each step in detail:

chemical properties of molybdenum:

PropertyValue
Atomic Number42
Atomic Mass95.95 g/mol
SymbolMo
Melting Point2,623°C (4,753°F)
Boiling Point4,639°C (8,382°F)
Density10.28 g/cm³
Oxidation States-2, +2, +3, +4, +5, +6
Electronegativity2.16 (Pauling scale)
Electron Configuration[Kr] 4d5 5s1

Applications of Molybdenum:

  1. Applications:
    • Glass Fiber Production: Molybdenum is utilized as a mandrel material for the production of glass fibers. Its high melting point and low thermal expansion coefficient make it suitable for withstanding the high temperatures and thermal cycling involved in the fiber manufacturing process.
    • TFT-LCD Manufacturing: Thin-film transistor liquid crystal displays (TFT-LCD) require molybdenum as a crucial component in the formation of thin-film transistors. Molybdenum thin films act as conductive electrodes, enabling the precise control of pixels in LCD screens.
    • Sapphire Production: Molybdenum is used as a crucible material in the production of sapphire crystals. The high melting point and excellent chemical resistance of molybdenum make it ideal for creating a controlled environment for crystal growth.
    • CIGS Solar Cells: Molybdenum is a critical layer in copper indium gallium selenide (CIGS) thin-film solar cells. It acts as a back contact, providing electrical conductivity and reflecting light back into the absorber layer to improve overall cell efficiency.
    • Vacuum Furnace Field: Molybdenum is employed in vacuum furnace applications due to its high-temperature strength and low vapor pressure. It serves as a heating element or structural component in these furnaces, ensuring reliable and controlled heat treatment processes.
  2. Molybdenum Alloys:
    • Chemical Characteristics: Molybdenum alloys exhibit enhanced properties compared to pure molybdenum, making them suitable for specific applications. Common alloys include molybdenum-rhenium (Mo-Re) and molybdenum-tungsten (Mo-W) alloys.
    • Applications:
      • Glass Fiber Production: Molybdenum-rhenium alloys are often utilized as mandrels in the production of high-performance glass fibers. The addition of rhenium enhances the alloy’s mechanical strength and resistance to oxidation, allowing for more prolonged use in demanding fiber manufacturing processes.
      • TFT-LCD Manufacturing: Molybdenum-tungsten alloys, known as “molybdenum wires,” are widely used as the source and gate electrodes in TFT-LCD manufacturing. The alloy’s high melting point, low resistivity, and good adhesion properties contribute to the precise control of electrical currents in the LCD panels.
      • Sapphire Production: Molybdenum-rhenium alloys are also employed as crucible materials for sapphire crystal growth. The alloy’s higher strength at elevated temperatures and improved resistance to thermal stress make it an excellent choice for demanding crystal growth processes.
      • CIGS Solar Cells: Molybdenum-tungsten alloys are commonly used as back contacts in CIGS solar cells. The tungsten addition improves the alloy’s adhesion to the absorber layer and reduces the contact resistance, enhancing the overall efficiency of the solar cell.
      • Vacuum Furnace Field: Molybdenum alloys, such as molybdenum-t
      • ungsten, are employed in vacuum furnace applications. The addition of tungsten enhances the alloy’s high-temperature strength, creep resistance, and resistance to thermal cycling. These alloys are commonly used as heating elements, heat shields, or structural components in vacuum furnaces, ensuring reliable and efficient heat treatment processes.
      • In summary, pure molybdenum metal and its alloys exhibit remarkable chemical characteristics that make them suitable for various industrial applications. Pure molybdenum is utilized in glass fiber production, TFT-LCD manufacturing, sapphire production, CIGS solar cells, and the vacuum furnace field. Molybdenum alloys, such as molybdenum-rhenium and molybdenum-tungsten, provide enhanced properties and find specific applications in these industries, contributing to the advancement of technology and manufacturing processes.
molybdenum TUNGSTEN Tantalum and Niobium
  • HeNan Ming Chuan Machinery Equipment CO.,LTD
    Add:Beihang Science and Technology ParkLuoyang city, Henan province China
    Tel:+86 13598164311 (Wechat&Whatsapp)
    Email: info@mcwmo.com
    Website: www.mcwmo.com

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