Characterization and examination of irradiated nuclear fuel surrogate properties (IONMAT PROJECT. TASK 3)
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Abstract
This document presents and details the main results obtained within task 3 “Characterization and examination of the properties of irradiated nuclear fuel analogs” of the High Level Waste Unit (HLWU) of CIEMAT within the framework of the PID2021-124913OA-I00 project (IONMAT project) funded by the Spanish State Research Agency (Agencia Española de Investigación, AEI).
For comparison, characterization performed on pellets prepared by the same technological process (within tasks 1 and 2), i.e. dry powder method or co-precipitation, will be described, evaluated and discussed. Characterization will be carried out by a broad set of methods/techniques: XRD, Raman spectroscopy, particle size distribution (laser diffraction), density (geometrical, by immersion or pycnometric), BET by physisorption (nitrogen) and surface morphology by SEM. The grain size of the samples will be estimated by means of the linear intercept method.
The aim is to evaluate the effect on the microstructure of the fabrication procedure and assess the changes in the composition and morphology of pellets.
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This research is part of the project of R+D+i PID2021-124913OA-I00, IONMAT project funded by MICIU/AEI/10.13039/501100011033/, Proyectos de Generación de Conocimiento 2021. Authors also want to thank the funding from the European Commission Horizon Europe, EURATOM2027 Research and Training Programme (EURAD-2 project, grant agreement n° 101166718).
The experimental data used in this research were partly generated through access to the ActUsLab/FMR under the Framework of access to the Joint Research Centre Physical Research Infrastructures of the European Commission (OCRAPCI, Research Infrastructure Access Agreement N°36922/01). Thanks to J. Boshoven and M. Cologna from JRC-KA for their assistance.
The experimental data used in this research were generated through access to the ActUsLab/HC-KA under the Framework of access to the Joint Research Centre Physical Research Infrastructures of the European Commission (CIATFRAS, Research Infrastructure Access Agreement Nº36346/01), as well as the collaboration agreement between JRC and CIEMAT (No. 602413). Thanks to L. Emblico and D. Serrano-Purroy from JRC-KA for their assistance.
The experimental data used in this research were generated under the Framework of the collaboration agreement between JRC and CIEMAT (No. 602413), in particular under the initiative THOXAM (THermal stability and Oxidation of highly Active Materials, collaboration agreement No. 50099). Thanks to L. Emblico and D. Serrano-Purroy from JRC-KA for their assistance.
Authors want to acknowledge R. Wilbraham, J. Parsonage and C. Boxall from The Lloyd’s Register Foundation Centre for Nuclear Engineering. Engineering Department, Lancaster University (UK), for facilitating the samples of ZrO2-CsI.
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