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Please use this identifier to cite or link to this item: http://apo.ansto.gov.au/dspace/handle/10238/7320

Title: Ion beam irradiation effects in strontium zirconium phosphate with NZP-structure type
Authors: Gregg, DJ
Karatchevtseva, I
Thorogood, GJ
Davis, J
Bellb, BDC
Jackson, M
Dayal, P
Ionescu, M
Triani, G
Short, K
Lumpkin, GR
Vancea, ER
Keywords: CERAMICS
SODIUM
ZIRCONIUM
PHOSPHATES
RADIOACTIVE WASTES
IONS
Issue Date: Mar-2014
Publisher: Elsevier
Citation: Gregg, D. J., Karatchevtseva, I., Thorogood, G. J., Davis, J., Bell, B. D. C., Jackson, M., . . . Vance, E. R. (2014). Ion beam irradiation effects in strontium zirconium phosphate with NZP-structure type. Journal of Nuclear Materials, 446(1–3), 224-231. doi: http://dx.doi.org/10.1016/j.jnucmat.2013.11.048
Abstract: Ceramics with the sodium zirconium phosphate or NZP type structure have potential as nuclear waste form and inert matrix materials. For both applications the material will be subjected to self-radiation damage from α-decay of the incorporated actinides. In this study, ion-beam irradiation using Au- and He-ions has been used to simulate the consequences of α-decay and the effects of irradiation on the structural and macroscopic properties (density and hardness) have been investigated. Irradiation by Au-ions resulted in a significant volume contraction of ∼7%, a reduction in hardness of ∼30% and a loss in long-range order at fluences above 1014 Au-ions/cm2. In contrast, little effect on the material properties was noted for samples irradiated with He-ions up to a fluence of 1017 ions/cm2. Thermal annealing was investigated for the highest fluence Au-ion irradiated sample and significant decomposition was observed. © 2013, Elsevier B.V.
URI: http://dx.doi.org/10.1016/j.jnucmat.2013.11.048
http://apo.ansto.gov.au/dspace/handle/10238/7320
ISSN: 0022-3115
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