Speaker
Dr
Yingjie Zhang
(ANSTO)
Description
Glass-ceramics have attracted recent attention as they have the advantage of combining the chemical flexibility of glasses with the excellent durability of ceramics, making them potential waste forms for the immobilization of actinide wastes with processing chemicals. Glass-ceramics based on titanate ceramic phases, e.g. zirconolite, pyrochlore and brannerite have been developed at ANSTO. The formations of these titanate dominated glass-ceramics have been demonstrated with uranium as proof of concept and plutonium with gadolinium and/or hafnium as neutron absorbers. This talk will focus on the current advances in the field including the formation and crystallization of titanate phases in glass, structure and microstructure characterization, actinide incorporation and actinide valences.
Primary author
Dr
Yingjie Zhang
(ANSTO)
Co-authors
Dr
Daniel Gregg
(ANSTO)
Dr
Inna Karatchevtseva
(ANSTO)
Dr
Linggen Kong
(Australian Nuclear Science and Technology Organisation)
Mr
Rob Aughterson
(ANSTO)
