Y
Yttrium
Z = 39 · Transition Metal · 88.9 u
Nuclear Engineering Significance
Daughter product of Sr-90 (Y-90, t₁/₂ = 64 h). Yttrium oxide (Y₂O₃) is used as a dispersoid in oxide-dispersion-strengthened (ODS) steels being developed for advanced reactor and fusion applications. Not otherwise common in reactor cores.
Basic properties
- Atomic number (Z)
- 39
- Standard atomic mass
- 88.9 u
- Category
- Transition Metal
Isotopes & cross-section data
No nuclide data for this element in the reference database.
The NRDP database focuses on nuclides relevant to reactor physics (fuels, moderators, structural materials, fission products, etc.). For full isotope data, see NNDC NuDat 3 or IAEA Nuclear Data Services.