Details

Autor(en) / Beteiligte

• Gregg, Daniel J.
• Karatchevtseva, Inna
• Thorogood, Gordon J.
• Davis, Joel
• Bell, Benjamin D.C.
• Jackson, Matthew
• Dayal, Pranesh
• Ionescu, Mihail
• Triani, Gerry
• Short, Ken
• Lumpkin, Gregory R.
• Vance, Eric R.

Titel

Ion beam irradiation effects in strontium zirconium phosphate with NZP-structure type

Ist Teil von

• Journal of nuclear materials, 2014-03, Vol.446 (1-3), p.224-231

Ort / Verlag

Amsterdam: Elsevier B.V

Erscheinungsjahr

2014

Link zum Volltext

Quelle

Elsevier ScienceDirect Journals Complete

Beschreibungen/Notizen

• 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 1014Au-ions/cm2. In contrast, little effect on the material properties was noted for samples irradiated with He-ions up to a fluence of 1017ions/cm2. Thermal annealing was investigated for the highest fluence Au-ion irradiated sample and significant decomposition was observed.