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|Title: ||Ion beam irradiation effects in strontium zirconium phosphate with NZP-structure type|
|Authors: ||Gregg, DJ|
|Issue Date: ||Mar-2014|
|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.|
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