Niobium carbide (NbC and Nb2C) is an acutely harder adverse bowl material, commercially acclimated in apparatus $.25 for acid tools. It is usually candy by sintering and is a common accretion in anchored carbides. It has the actualization of a brown-gray brownish crumb with amethyst lustre. It is awful bane resistant.
Niobium carbide is a common advised artefact in microalloyed steels due to its acutely low solubility artefact in austenite, the everyman of all the adverse metal carbides. This agency that micrometre-sized precipitates of NbC are around baffling in steels at all processing temperatures and their area at atom boundaries helps anticipate boundless atom advance in these steels. This is of astronomic benefit, and the cornerstone of microalloyed steels, because it is their uniform, actual accomplished atom admeasurement that ensures both courage and strength. The alone frequently occurring admixture with a lower solubility and hence, greater abeyant for akin the atom advance of steels is titanium nitride.
Its CAS amount is 12069-94-2.
Depending on atom size, niobium carbide may bake at 200-800 °C in air.
A band of niobium carbide can be created by actinic breath deposition.
Zirconium carbide and niobium carbide can be acclimated as adverse coatings in nuclear reactors.
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