Dysprosium oxide (Dy₂O₃) is a rare-earth ceramic compound belonging to the lanthanide oxide family, valued for its high refractive index and optical transparency in the infrared spectrum. It is primarily used in specialized optical components, nuclear reactor control materials, and as a dopant in phosphors and laser systems, where its rare-earth properties enable performance that conventional oxides cannot match. Engineers select Dy₂O₃ when infrared transmission, thermal stability, or neutron-absorbing capability is critical, though its cost and limited availability make it suitable only for high-performance applications where alternatives are insufficient.
Compliance & Regulations
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K) | 22,817.3 | ksi | — | ||
Poisson's Ratio(ν) | 0.3400 | - | — | ||
Shear Modulus(G) | 10,154.1 | ksi | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 0.2842 | lb/in³ | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg)3 entries | 5.000 | eV | — | ||
| ↳ | 1.645 | eV | — | ||
| ↳ | 1.581 | eV | — | ||
Dielectric Constant (Relative Permittivity)(εr) | 19.19 | - | — | ||
Magnetic Moment(μB)2 entries | 0.000 | μB | — | ||
| ↳ | 0.000 | µB | — | ||
Piezoelectric Modulus(eij) | 0.000 | C/m² | — | ||
Seebeck Coefficient(S) | -229 | µV/K | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.2505 | eV/atom | — | ||
Formation Energy(ΔHf)3 entries | -2.904 | eV/atom | — | ||
| ↳ | -3.861 | eV/atom | — | ||
| ↳ | -3.562 | eV/atom | — |