DyO2
ceramic· JVASP-102151· DyO2
Dysprosium oxide (DyO2) is a rare-earth ceramic compound belonging to the lanthanide oxide family, characterized by high density and strong elastic properties. It is primarily used in advanced nuclear applications, including control rods and neutron absorbers in nuclear reactors, as well as in specialized optical and thermal barrier coating systems for high-temperature aerospace components. DyO2 is valued for its combination of excellent neutron absorption cross-section, thermal stability at extreme temperatures, and chemical inertness, making it an alternative to more conventional rare-earth ceramics when superior radiation shielding or thermal cycling resistance is critical.
nuclear reactor control rodsneutron absorber materialsthermal barrier coatingsaerospace high-temperature applicationsradiation shieldingresearch-phase advanced ceramics
Compliance & Regulations
?Conflict Free?RoHS?REACH?TSCA?Prop 65
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K) | 163.0 | GPa | — | ||
Poisson's Ratio(ν) | 0.2900 | - | — | ||
Shear Modulus(G) | 81.02 | GPa | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 8.257 | kg/m³ | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg) | 1.165 range 0.000–2.329median of 2 measurements | eV | — | ||
Magnetic Moment(μB) | 0.9870 | µB | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.1294 | eV/atom | — | ||
Formation Energy(ΔHf) | -3.050 | eV/atom | — |
Verified Unverified Low confidence (<80%) Link to source
Regulatory Screening
Environmental
RoHS, REACH, and Prop 65 statuses are validated against official substance lists (ECHA SVHC Candidate List, OEHHA Prop 65, RoHS Annex II). Other regulations are estimated from composition and material classification. All screening is a starting point for due diligence — always verify with your supplier before making compliance decisions.