Hafnium nitride (HfN) is a refractory ceramic compound belonging to the transition metal nitride family, characterized by extremely high melting point and thermal stability. It is primarily investigated for extreme-environment applications in aerospace, nuclear, and high-temperature industrial settings where conventional ceramics and metals reach their limits. HfN is notably harder and more chemically resistant than many competing refractory materials, making it a candidate for thermal protection systems, cutting tools, and reactor components, though industrial adoption remains limited compared to more established carbides and established nitrides.
Compliance & Regulations
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K)2 entries | 266.0 | GPa | — | ||
| ↳ | 277.7 | GPa | — | ||
Poisson's Ratio(ν) | 0.2600 | - | — | ||
Shear Modulus(G)2 entries | 156.2 | GPa | — | ||
| ↳ | 166.9 | GPa | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 13.72 | kg/m³ | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg) | 0.000 | eV | — | ||
Dielectric Constant (Relative Permittivity)(εr) | 11.33 | - | — | ||
Magnetic Moment(μB) | 0.000 | µB | — | ||
Piezoelectric Modulus(eij) | 0.8569 | C/m² | — | ||
Seebeck Coefficient(S) | -4.920 | µV/K | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.000 | eV/atom | — | ||
Formation Energy(ΔHf)2 entries | -1.936 | eV/atom | — | ||
| ↳ | -1.925 | eV/atom | — |