Holmium oxide (Ho₂O₃) is a rare-earth ceramic compound belonging to the lanthanide oxide family, characterized by high density and significant mechanical stiffness. While primarily used in specialized research and optical applications, Ho₂O₃ serves niche roles in nuclear control materials, phosphor host materials for laser systems, and high-temperature structural applications where rare-earth properties are leveraged. Engineers select this material when rare-earth nuclear absorption, thermal stability, or specific luminescent properties are critical requirements that conventional oxides cannot meet.
Compliance & Regulations
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K) | 159.6 | GPa | — | ||
Poisson's Ratio(ν) | 0.3500 | - | — | ||
Shear Modulus(G) | 69.95 | GPa | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 9.363 | kg/m³ | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg)3 entries | 5.420 | eV | — | ||
| ↳ | 1.533 | eV | — | ||
| ↳ | 4.342 | eV | — | ||
Dielectric Constant (Relative Permittivity)(εr) | 19.08 | - | — | ||
Magnetic Moment(μB)2 entries | 0.000 | μB | — | ||
| ↳ | 0.000 | µB | — | ||
Piezoelectric Modulus(eij) | 0.000 | C/m² | — | ||
Seebeck Coefficient(S) | -236.6 | µV/K | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.04410 | eV/atom | — | ||
Formation Energy(ΔHf)3 entries | -2.927 | eV/atom | — | ||
| ↳ | -3.899 | eV/atom | — | ||
| ↳ | -3.816 | eV/atom | — |