Vanadium nitride
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| Template:Longitem | VN |
| Molar mass | 64.9482 g/mol |
| Appearance | black powder |
| Density | 6.13 g/cm3 |
| Melting point | Template:Chembox CalcTemperatures |
| Template:Longitem | cubic, cF8 |
| Template:Longitem | Fm3m, No. 225 |
| Flash point | Template:Chembox CalcTemperatures |
| Template:Longitem | vanadium(III) oxide, vanadium carbide |
| Template:Longitem | titanium nitride, chromium(III) nitride, niobium nitride |
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Vanadium nitride, VN, is a chemical compound of vanadium and nitrogen.
Vanadium nitride is formed during the nitriding of steel and increases wear resistance.[1] Another phase, V2N, also referred to as vanadium nitride, can be formed along with VN during nitriding.[2] VN has a cubic, rock-salt structure. There is also a low-temperature form, which contains V4 clusters.[3] The low-temperature phase results from a dynamic instability, when the energy of vibrational modes in the high-temperature NaCl-structure phase, are reduced below zero.[4]
It is a strong-coupled superconductor.[5] Nanocrystalline vanadium nitride has been claimed to have potential for use in supercapacitors.[6] The properties of vanadium nitride depend sensitively on the stoichiometry of the material.[7]
References
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- ↑ Thermo reactive diffusion vanadium nitride coatings on AISI 1020 steel U.Sen Key Engineering Materials vols 264-268 (2004),577
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