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Molybdenum Disilicide Powder, MoSi2, CAS 12136-78-6


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Molybdenum Disilicide (MoSi2) Powder features a quadratic crystal structure and is a grey-powder material. It is extensively employed in the field of high-temperature structural ceramics. Heeger Materials offers premium quality MoSi2 Powder at competitive prices, with purity and particle size readily customized to meet specific requirements.

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Molybdenum Disilicide (MoSi2) Powder is an intermediate phase in the binary alloy system with the highest silicon content, which gives it both metallic and ceramic properties. It is highly regarded for its excellent chemical stability and resistance to high-temperature oxidation, making it ideal for use in a range of fields, including electronics, optics, and materials industries.

Molybdenum Disilicide Powder, MoSi2, CAS 12136-78-6

  • Density: 6.24g/cm3
  • Melting point: 2030℃
  • Thermal conductivity: 45 W/m·K
  • Thermal expansion coefficient: 8.1×10-6K-1
  • Resistivity: 21.5×10-6 Ω·cm
  • Vickers hardness: 10.6Gpa
  • EINECS NO.: 235-231-8

Molybdenum Disilicide (MoSi2) Powder Chemical Analysis


Purity (%)

Chemical Composition (wt%)



















Particle Size Distribution

D10: 1.5-2.0 μm, D50: 5.5-7.5 μm, D90: 10.5-13.5 μm

Molybdenum Disilicide (MoSi2) Powder Properties

Molybdenum Disilicide (MoSi2) Powder - SEM

  • High melting point and corrosion resistance
  • Low specific gravity
  • High-temperature oxidation resistance
  • High-temperature plasticity
  • Thermal and electrical conductivity
  • Fluidity

Molybdenum Disilicide (MoSi2) Powder Applications

  • Used in high-temperature antioxidant coating materials
  • Used in electric heating elements
  • Used in integrated electrode films
  • Used in structural materials
  • Used in reinforcing agents for composite materials
  • Used in wear-resistant materials
  • Used in joining materials for structural ceramics

Molybdenum Disilicide (MoSi2) Powder Storage and Packing

Molybdenum Disilicide (MoSi2) Powder should be kept sealed and stored in a dry and cool place, avoiding heavy pressure, contact with oxidizing agents, and being exposed to air for a long time. The vacuum packing is 100g/bag, 500g/bag, 1kg/bag, 25kg/drum, or per specific requirement.

Molybdenum Disilicide (MoSi2) Powder Packing

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