HfNb4CN4 is a refractory metal carbide-nitride compound combining hafnium and niobium, representing an emerging class of high-entropy ceramic-metallic materials designed for extreme environments. This material is primarily of research and developmental interest rather than established production use, with potential applications in ultra-high-temperature structural applications, thermal protection systems, and advanced cutting tools where conventional superalloys reach their thermal limits. The hafnium-niobium carbide-nitride family offers exceptional hardness and melting point retention, making it notable as a candidate for next-generation aerospace and industrial applications, though engineering adoption remains limited pending further characterization and scalable manufacturing development.
Compliance & Regulations
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 0.3272 | lb/in³ | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg) | 0.000 | eV | — | ||
Magnetic Moment(μB) | 0.000 | µB | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.1591 | eV/atom | — | ||
Formation Energy(ΔHf) | -1.077 | eV/atom | — |