Niobium Silicide, NbSi2

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Niobium Silicide, NbSi2

Niobium silicide composite binary alloy matrix composite is a promising high-temperature structural material. In this dual-phase composite, solution niobium provides room temperature toughness while si2nb provides high-temperature strength. The composite has high thermodynamic stability and microstructural stability at high temperature.


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Chinese Name: niobium silicide
Chinese Name: niobium disilicide/Niobium disaliticide
English alias: niobium silicide (NbSi2); niobium silicide; niobium disability
CAS:12034-80-9
EINECS:234-812-3
Molecular formula: NbSi2
Molecular weight: 149.0774
Editing of physicochemical properties
Melting point: 1940 ℃

1. Niobium silicide composite binary alloy matrix composite is a promising high-temperature structural material. In this dual-phase composite, solution niobium provides room temperature toughness while si2nb provides high-temperature strength. The composite has high thermodynamic stability and microstructural stability at high temperature.
2. NbSi2 based superalloy has high melting point, low density and excellent comprehensive properties. Its target service temperature is 200-300 ℃ higher than that of Ni based superalloy. It is expected to be used in gas turbine engine blades working at 1300-1500 ℃ and hot end components of aerospace vehicle scramjet engine.
3. The research and development idea of NbSi2 based superalloy is to form niobium based solid solution / Nb5Si3 dual phase composite by adding ductile solid solution phase, which can improve the room temperature toughness while maintaining excellent high temperature strength.


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