| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1564708 | Journal of Nuclear Materials | 2016 | 5 Pages |
Abstract
Ba, the transmutation product of radioactive Cs, can be incorporated at levels of up to â¼0.07 formula units in Cs(1â2x)BaxAlSi2O6 aluminium pollucite formed by sol-gel methods and sintering at 1400 °C, with more Ba forming BaAl2Si2O8 phases. The effect of Ba substitution in pollucite-structured CsFeSi2O6 was also studied and no evidence of Ba substitution in the pollucite structure via cation vacancies or Fe2+ formation was obtained. The Ba entered a Fe-silicate glass structure. Charge compensation was also attempted with a Cs+ + Fe3+ â Ba2+ + Ni2+ scheme but again the Ba formed a glass and NiO was evident. PCT leaching data showed CsFeSi2O6 to be very leach resistant.
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Nuclear Energy and Engineering
Authors
Eric R. Vance, Daniel J. Gregg, Grant J. Griffiths, Paul R. Gaugliardo, Charmaine Grant,