Character:
Niobium carbide,Chemical formula NbC,Molecular weight 104.92,Density 7.56g/cm3 , Melting point 3490ºC,Boiling point 4300ºC,Carbon content 11.45%.Niobium carbide is brown-gray metallic powder with purple lustre.The powder also is a high melting point and high hardness material with high chemical stability and high temperature function.It is applied to high temperature refractory material and additive in cemented carbide.
Niobium carbide (NbC and Nb2C) is an extremely hard refractory ceramic material, commercially used in tool bits for cutting tools. It is usually processed by sintering and is a frequent additive in cemented carbides. It has the appearance of a brown-gray metallic powder with purple lustre. It is highly corrosion resistant.
