HfBeSi is a ternary ceramic compound combining hafnium, beryllium, and silicon—a research-phase material belonging to the family of refractory ceramics with potential for ultra-high-temperature structural applications. While industrial adoption remains limited, this composition targets extreme environments where thermal stability, stiffness, and resistance to oxidation are critical; the material family is of particular interest for aerospace propulsion, nuclear systems, and advanced manufacturing processes that demand materials stable well above conventional ceramic operating limits.
Compliance & Regulations
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K)3 entries | 147.6 | GPa | — | ||
| ↳ | 147.6 | GPa | — | ||
| ↳ | 119.9 | GPa | — | ||
Elastic Compliance Tensor(Sij) | Matrix (redacted) | 1/GPa | — | ||
Elastic Anisotropy(AU) | 0.1270 | - | — | ||
Elastic Stiffness Tensor(Cij) | Matrix (redacted) | Pa | — | ||
Poisson's Ratio(ν)2 entries | 0.1849 | - | — | ||
| ↳ | 0.3900 | - | — | ||
Shear Modulus(G)3 entries | 117.8 | GPa | — | ||
| ↳ | 117.8 | GPa | — | ||
| ↳ | 15.73 | GPa | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 8.130 | kg/m³ | — |
| 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) | 0.5862 | eV/atom | — | ||
Formation Energy(ΔHf) | -0.02524 | eV/atom | — |