HfNCl is an experimental layered ceramic compound combining hafnium, nitrogen, and chlorine, belonging to the family of transition metal oxynitride and halide ceramics under active research. While not yet commercialized, this material is being investigated for potential applications in high-temperature structural ceramics and layered materials where the weak interlayer bonding characteristic of its crystal structure could enable exfoliation into two-dimensional nanosheets, similar to graphene or MoS₂. Engineers would consider this material primarily in advanced research contexts exploring next-generation composites, thermal protection systems, or electronic devices where layered nanostructures offer advantages in strength-to-weight ratio, thermal stability, or tunable electronic properties.
Compliance & Regulations
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K) | 74.37 | GPa | — | ||
Exfoliation Energy(Eexf) | 35.23 | meV/atom | — | ||
Poisson's Ratio(ν) | 0.3100 | - | — | ||
Shear Modulus(G) | 33.28 | GPa | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 7.387 | kg/m³ | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg) | 2.212 | eV | — | ||
Dielectric Constant (Relative Permittivity)(εr)2 entries | 10.74 | - | — | ||
| ↳ | 13.68 | - | — | ||
Electronic Dielectric Tensor(ε∞) | Matrix (redacted) | - | — | ||
Total Dielectric Tensor(ε) | Matrix (redacted) | - | — | ||
Magnetic Moment(μB) | 0.000 | µB | — | ||
Piezoelectric Modulus(eij) | 0.000 | C/m² | — | ||
Seebeck Coefficient(S) | -273.8 | µV/K | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.000 | eV/atom | — | ||
Formation Energy(ΔHf) | -2.018 | eV/atom | — |