NbN

metal
· NbN

Niobium nitride (NbN) is a ceramic compound and refractory metal nitride that combines the metallic character of niobium with the hardness and thermal stability of a nitride phase. It is primarily used in thin-film applications, superconducting devices, and hard coatings where extreme hardness, chemical resistance, and thermal stability are required at elevated temperatures. NbN is notable in superconductor research as a material with critical superconducting properties, and in industrial coatings for cutting tools and wear-resistant surfaces where it outperforms softer metallic alternatives; it is also increasingly explored for barrier layers in microelectronics and as a coating material in high-performance machining applications.

superconducting deviceshard coating systemscutting tool insertsthermal barrier applicationsthin-film electronicswear-resistant surfaces

Compliance & Regulations

?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65
Units:
siimperial
PropertyValueUnitConditionsSource
Bulk Modulus(K)2 entries
315.0
GPa—
↳
318.5
GPa—
Poisson's Ratio(ν)
0.2500
-—
Shear Modulus(G)2 entries
189.3
GPa—
↳
194.7
GPa—
N entriesMultiple entries per property — large groups are collapsed; click a summary row to expand. Use filters above to narrow by form / heat treatment / basis.
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Density(ρ)
8.071
kg/m³—
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Band Gap(Eg)
0.000
eV—
Magnetic Moment(μB)
0.000
µB—
Seebeck Coefficient(S)
13.94
µV/K—
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Energy Above Hull(ΔEhull)
0.04000
eV/atom—
Formation Energy(ΔHf)2 entries
-1.225
eV/atom—
↳
-1.192
eV/atom—
N entriesMultiple entries per property — large groups are collapsed; click a summary row to expand. Use filters above to narrow by form / heat treatment / basis.
Verified Unverified Low confidence (<80%) Link to source

Regulatory Screening

Environmental

Export Control

RoHS, REACH, and Prop 65 statuses are validated against official substance lists (ECHA SVHC Candidate List, OEHHA Prop 65, RoHS Annex II). Other regulations are estimated from composition and material classification. All screening is a starting point for due diligence — always verify with your supplier before making compliance decisions.