|About this Abstract
||2018 TMS Annual Meeting & Exhibition
||Materials and Fuels for the Current and Advanced Nuclear Reactors VII
||In-situ Testing of Fouling-resistant Coatings for PWR Fuel Cladding
||Max Carlson, Alexander Slocum, Michael Short
|On-Site Speaker (Planned)
Fouling deposits in PWR cores, referred to as CRUD, cause axial power shifts and accelerated corrosion, while contributing to radionuclide transport out of the core. The Lifshitz theory of van der Waals (vdW) adhesive forces is applied to the fouling problem, and initial room temperature atomic force microscope force spectroscopy (AFM-FS) studies of adhesive force outline trends that lead to a fouling-resistant coating.
Despite the agreement of the initial results with theory, it is desirable to measure the adhesive force in conditions approaching those of a PWR to claim that the theory is truly applicable to fouling in power plants. A custom high pressure atomic force microscope is developed, which will allow in-situ measurement of fouling particle adhesive force for the first time. The knowledge gained from these experiments is applied in a multidisciplinary effort to pinpoint a next-generation coating that will resist fouling and oxidation while enhancing heat transfer.
||Planned: Supplemental Proceedings volume