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dc.contributor.authorWhittle, KR-
dc.contributor.authorBlackford, MG-
dc.contributor.authorLumpkin, GR-
dc.contributor.authorSmith, KL-
dc.contributor.authorZaluzec, NJ-
dc.identifier.citationWhittle, K. R., Blackford, M. G., Lumpkin, G. R., Smith, K. L., & Zaluzec, N. J. (2009). Radiation damage in materials - effects of disorder. 33rd Symposium on Scientific Basis for Nuclear Waste Management (MRS'09), 24th - 29th May 2009. St. Petersburg, Russian Federation: Morskoy Vokzal Hotel. In Boris E. Burakov & Albert S. Aloy (Eds.), Scientific Basis for Nuclear Waste Management XXXIII, 1193, 55-60(C-3). doi:10.1557/PROC-1193-55en_AU
dc.description.abstractRadiation damage and the effect on physical and chemical properties is an important component in the prediction of the long-term stability of waste form materials. As part of the ongoing goal of increasing the accuracy of long-term predictions of radiation damage, two types of material, based on proposed materials with a waste form application have been irradiated. Results have shown that Y2TiO5 (Y2.67Ti1.33O6.67), and Yb2TiO5 (Yb2.67Ti1.33O6.67), both of which are non-stoichiometric, disordered pyrochlore-based compounds, behave significantly different to the stoichiometric, ordered pyrochlore equivalent. For example the critical temperature, the temperature above which materials remain crystalline during irradiation, is found to decrease from the ordered equivalents, e.g. Y2Ti2O7. A second material based on La2TiO5 has been found to behave differently to both LaSUB>2/3TiO3 and La2Ti2O7, with a change in Tc of ~ 200 K. © Materials Research Society 2009en_AU
dc.publisherMaterials Research Societyen_AU
dc.subjectRadiation effectsen_AU
dc.subjectWaste formsen_AU
dc.titleRadiation damage in materials - effects of disorderen_AU
dc.typeConference Paperen_AU
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