29 October 2017 to 3 November 2017
Australia/Sydney timezone

A New Method for Production of Glass-Y2Ti2O7 Pyrochlore

1 Nov 2017, 14:15
Oral Presentation National and international collaborative waste management programs Ceramic and Glass-Ceramic Wasteforms


Dr Linggen Kong (Australian Nuclear Science and Technology Organisation)


The actinide immobilisation research group at ANSTO has been investigating pyrochlore glass-ceramics for plutonium immobilisation. A novel method of glass ceramic preparation via a soft chemistry route has been designed recently. Significant advantages over a more traditional mixed oxide route include removal of the need for an organic solvent in synthesis and milling steps, and product devoid of potentially deficient minor phases. Glass-Y2Ti2O7 pyrochlore was fabricated by sintering the mixture of glass precursor powder and (YTi)-composite prepared by a soft chemistry route. XRD and Raman confirmed phase pure pyrochlore crystallized in-situ in amorphous glass matrix at 1200oC. Pyrochlore formation in glass was independent of cooling rates and addition of metal fluorides. Glass matrix was able to accommodate/dissolve small amounts of impurities and the mean pyrochlore particle size was between 1 and 2 µm in glass.

Primary author

Dr Linggen Kong (Australian Nuclear Science and Technology Organisation)


Dr Inna Karatchevtseva (Australian Nuclear Science and Technology Organisation) Dr Yingjie Zhang (Australian Nuclear Science and Technology Organisation)

Presentation Materials

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