On the valency state of americium in (U(0.5)Am(0.5))O(2-x)
The highly toxic and long lived alpha active minor abundant actinides (Np, Am, Cm) can be irradiated with fast neutrons in order to transmute them into less toxic, short lived fission products. The compound (U(1-z)Am(z))O(2-x) was investigated in this context as a potential nuclear fuel. The material was studied by X-ray diffraction, oxygen potential measurement, XPS and magnetic measurements. Am proved to be in the trivalent oxidation state, so the compound should be formulated as americium uranate AmUO(4-y), rather than by analogy with (U(0.5)Pu(0.5))O(2-x). The uranium is tetra- or penta-valent depending on the stoichiometry.
Bibliographic Reference: Paper presented: International Conference Actinides '93, Santa Fe (US), September 19-24, 1993
Availability: Available from (1) as Paper EN 37990 ORA
Record Number: 199410070 / Last updated on: 1994-11-28
Original language: en
Available languages: en