ErNi5 is an intermetallic compound in the rare-earth nickel family, combining erbium with nickel in a 1:5 stoichiometric ratio. This material is primarily of interest in hydrogen storage applications and magnetocaloric research, where its crystal structure and thermal properties enable hydrogen absorption at moderate pressures and temperatures. ErNi5 represents a class of rare-earth intermetallics valued for their reversible hydrogen uptake capacity, making them candidates for advanced energy storage systems, though they face practical challenges related to activation requirements and cycle stability compared to other metal hydride technologies.
Compliance & Regulations
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K) | 157.7 | GPa | — | ||
Poisson's Ratio(ν) | 0.3100 | - | — | ||
Shear Modulus(G) | 70.95 | GPa | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 9.537 | kg/m³ | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg) | 0.000 | eV | — | ||
Magnetic Moment(μB) | 0.5440 | µB | — | ||
Seebeck Coefficient(S) | -8.727 | µV/K | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.000200 | eV/atom | — | ||
Formation Energy(ΔHf)2 entries | -0.3026 | eV/atom | — | ||
| ↳ | -0.3752 | eV/atom | — |