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Niobium Disilicide Powder, NbSi2, CAS 12034-80-9


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Niobium Disilicide (NbSi2) Powder is a black-grey powder with a hexagonal crystal structure, which is a promising high-temperature structural material. The purity and particle size can be tailored according to specific requirements.

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Data sheet

Molecular FormulaNbSi2

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Niobium Disilicide (NbSi2) Powder has high thermomechanical stability and microstructural stability at high temperatures. Heeger Materials can provide high-quality Niobium Disilicide (NbSi2) Powder at a competitive price.

Niobium Disilicide Powder, NbSi2, CAS 12034-80-9

  • Formula: NbSi2
  • Density: 5.7g/cm3
  • Melting point: 1950℃
  • Microhardness: 10.3Gpa
  • Vicker hardness: 5.88~6.88Gpa
  • CAS: 12034-80-9

Niobium Disilicide Powder Chemical Analysis


Purity (%)

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Particle Size

-20 mesh, -325 mesh, or customized

Niobium Disilicide Powder Properties

Niobium Disilicide Powder - SEM

  • Insoluble in water, concentrated hydrochloric acid, concentrated sulfuric acid
  • Soluble in a mixture of hydrofluoric acid and sulfuric acid
  • High melting point
  • Low density 
  • Excellent overall performance

Niobium Disilicide Powder Applications

  • Used as raw material for fine ceramics when NbSi2 is made into solid solutions with zirconium disilicide, molybdenum disilicide, and tungsten silicide.
  • Used in niobium-silicide-based turbine parts
  • Used in integrated circuits
  • Used in high-temperature structural materials

Niobium Disilicide Powder Storage and Packing

Niobium Disilicide (NbSi2) Powder should be kept sealed and stored in a dry and cool place, avoiding being exposed to air. The vacuum packing is 100g/bag, 500g/bag, 1kg/bag, 25kg/drum, or as required.

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