Advanserade material för fjärde generationens kärnreaktor bränsle

Tidsperiod: 2017-12-01 till 2020-12-31

Projektledare: Sergei Butorin

Medarbetare: Philippe Martin, Kristina Kvashnina

Finansiär: Vetenskapsrådet

Bidragstyp: Projektbidrag

Budget: 6 200 000 SEK

The goal of the project is to improve scientific knowledge of processes important for optimizing the properties of fuel materials for fourth generation (GEN IV) nuclear reactors. We aim to establish the fundamental physical, chemical and structural properties of such materials to reach a predictive understanding of behavior of Th, U and Pu carbides and (U,Pu) mixed oxides fuels for GEN IV fast neutron reactors. The latter would also include Am. For materials prepared with different procedures, this is planned to be achieved by employing, besides the standard methods of characterization, advanced experimental techniques, such as greatly improved in terms of sensitivity and chemical contrast x-ray spectroscopic methods. The experiments will be supported by first-principle calculations taking into account the features of the f-electron systems.For simulation of irradiated fuel materials, the properties of nuclear fuel materials with defects will be studied to predict the structural behavior of the fuel. Furthermore, in-situ experiments at high temperatures and controlled atmosphere will be conducted by taking advantage of the newly designed high-temperature cell.The project will be carried out in collaboration with Helmholtz-Zentrum Dresden-Rossendorf and CEA (The French Alternative Energies and Atomic Energy Commission), Marcoule, France by taking advantage of their dedicated facilities for actinide research. A new beamline at Swedish synchrotron MAX IV will be also utilized.