Borosilicate and lead silicate glass matrix composites containing pyrochlore phases for nuclear waste encapsulation

Glass matrix composites intended for the immobilisation of plutonium bearing nuclear legacy waste have been manufactured. Two different matrices, a soda borosilicate glass and a lead silicate glass, are proposed for encapsulating lanthanum and gadolinium zirconates having pyrochlore crystalline stru...

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Bibliographic Details
Published in:Journal of nuclear materials 2004-05, Vol.327 (2), p.148-158
Main Authors: Boccaccini, A.R., Bernardo, E., Blain, L., Boccaccini, D.N.
Format: Article
Language:English
Subjects:
Applied sciences
Controled nuclear fusion plants
Energy
Energy. Thermal use of fuels
Exact sciences and technology
Fission nuclear power plants
Fuels
Installations for energy generation and conversion: thermal and electrical energy
Nuclear fuels
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Summary:Glass matrix composites intended for the immobilisation of plutonium bearing nuclear legacy waste have been manufactured. Two different matrices, a soda borosilicate glass and a lead silicate glass, are proposed for encapsulating lanthanum and gadolinium zirconates having pyrochlore crystalline structure. The fabrication of the composites involves powder mixing followed by cold pressing and pressureless sintering or hot-pressing at relatively low temperatures (
ISSN:0022-3115
1873-4820
DOI:10.1016/j.jnucmat.2004.01.019