HoSiIr is a ternary intermetallic ceramic compound combining holmium, silicon, and iridium—a rare composition that represents an experimental advanced ceramic with potential for ultra-high-temperature and demanding structural applications. This material family bridges rare-earth metallics and refractory ceramics, making it relevant where extreme thermal stability, chemical inertness, and mechanical integrity under severe conditions are required. While not yet widely deployed in production, HoSiIr-type compounds are of research interest for aerospace propulsion systems, nuclear environments, and specialized high-performance applications where conventional superalloys and ceramics reach their limits.
Compliance & Regulations
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K) | 151.2 | GPa | — | ||
Poisson's Ratio(ν) | 0.3000 | - | — | ||
Shear Modulus(G) | 74.20 | GPa | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 11.89 | kg/m³ | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg) | 0.000 | eV | — | ||
Seebeck Coefficient(S) | -7.240 | µV/K | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.000 | eV/atom | — | ||
Formation Energy(ΔHf) | -1.066 | eV/atom | — |