| Identification | More | [Name]
NIOBIUM NITRIDE | [CAS]
24621-21-4 | [Synonyms]
COLUMBIUM NITRIDE
NIOBIUM NITRIDE
Niobium nitride (NbN)
Niobiumnitridemetalsbasisgraypowder
NIOBIUM NITRIDE-325 MESH
Niobiumnitride(metalsbasis) | [EINECS(EC#)]
246-362-5 | [Molecular Formula]
NNb | [MDL Number]
MFCD00016239 | [Molecular Weight]
106.91 | [MOL File]
24621-21-4.mol |
| Chemical Properties | Back Directory | [Melting point ]
2573°C | [density ]
8,4 g/cm3 | [solubility ]
insoluble in HCl, acid solutions | [form ]
Powder | [color ]
gray crystals, crystalline; cubic | [Specific Gravity]
8.4 | [Resistivity]
78 (ρ/μΩ.cm) | [Water Solubility ]
Insoluble in water. | [Thermal Conductivity]
4.184 W/(m·K) | [Crystal Structure]
Cubic | [Uses]
Niobium nitride (NbN) thin films were noticed at an early stage because of their critical transition temperatures as low as 16-17K which could find wide applications in superconducting microelectronics. Because of its complicated phase diagram, NbN is difficult to prepare in the pure face-centered cubic, rocksalt structure. | [CAS DataBase Reference]
24621-21-4(CAS DataBase Reference) | [EPA Substance Registry System]
Niobium nitride (NbN) (24621-21-4) |
| Hazard Information | Back Directory | [Chemical Properties]
dark gray; fcc, a=0.4388nm; hardness, 8+ Mohs; electrical resistivity 78μοhm· cm; transition temp 15.2K; can be prepared by heating Nb metal in excess N2 or NH3 to 700°C–1100°C; used in the form of 99.5% pure sputtering target for increasing electrical stability of diodes, transistors, and integrated circuits [KIR81] [CIC73] [CER91] | [Physical properties]
Dark gray crystals. Transition
temperature 15.2 K. Insoluble in
HCL, HNO3 and H2SO4; but attacked by hot caustic, lime, or
strong alkalis evolving NH3. | [Synthesis]
1. Taking metallic niobium and nitrogen as raw materials, the crushed metallic niobium is sent into the nitriding furnace, and then nitrogen or ammonia is introduced to make it react at 700-1100℃ to directly synthesize niobium nitride. Or in the crushed m |
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