Dy2 O3
ceramic· Dy2 O3
Dysprosium oxide (Dy₂O₃) is a rare-earth ceramic compound belonging to the lanthanide oxide family, characterized by high melting point and chemical stability. It is primarily used in specialized applications requiring neutron absorption, high-temperature refractories, and optical materials, with particular importance in nuclear reactor control systems where its strong neutron-absorbing properties make it valuable for safety and reactivity management. Engineers select Dy₂O₃ over alternative rare-earth oxides when thermal stability combined with nuclear shielding capability is critical, though its scarcity and cost typically limit use to applications where performance requirements justify the investment.
nuclear reactor control rodshigh-temperature refractoriesneutron absorbersphosphor and optical materialsceramic compositesspecialized nuclear shielding
Compliance & Regulations
?Conflict Free?RoHS?REACH?TSCA?Prop 65
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K) | — | Pa | — | — | |
Shear Modulus(G) | — | Pa | — | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg) | — | eV | — | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Formation Energy(ΔHf) | — | 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.