Hafnium dihydride (HfH₂) is a ceramic hydride compound combining hafnium metal with hydrogen, belonging to the transition metal hydride family. This material is primarily of research and specialized industrial interest rather than widespread commercial use, valued for its extreme hardness, high density, and thermal stability in demanding environments. Applications leverage its refractory properties and potential for high-temperature structural components, though hafnium hydride materials remain largely in development or niche roles due to processing challenges and cost considerations compared to conventional ceramics.
Compliance & Regulations
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K) | 21,736.8 | ksi | — | ||
Poisson's Ratio(ν) | 0.4100 | - | — | ||
Shear Modulus(G) | 5,279.4 | ksi | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 0.4140 | lb/in³ | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg) | 0.000 | eV | — | ||
Magnetic Moment(μB) | 0.000 | µB | — | ||
Seebeck Coefficient(S) | -10.16 | µV/K | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.000 | eV/atom | — | ||
Formation Energy(ΔHf) | -0.4966 | eV/atom | — |