STUDY OF THERMAL CREEP OF COATED CLADDING MATERIALS
Author(s)Sevecec, Martin; Shirvan, Koroush; Ballinger, Ronald G.
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Coated cladding materials are considered as a near-term concept for so-called Accident Tolerant Fuel materials. Their behavior in accidental conditions is mainly studied around the world, however, they need to survive in-reactor normal operation before reaching theoretical accidental conditions. An out-of-pile experiment was designed to study accelerated inward thermal creep and outward displacement of a cladding that occurs after pellet-cladding interaction. Four different materials deposited by the cold-spray technique were studied as well as the reference uncoated one. The results confirm theoretical prediction that due to a mismatch between the fundamental physical properties of each layer, high stresses will build up and the plastic strains expected will lead to coating cracking. Keywords: Accident Tolerant Fuel; Fuel Cladding; Creep; Coating
DepartmentMassachusetts Institute of Technology. Department of Nuclear Science and Engineering
Czech Technical University in Prague - Central Library
Ševeček, Martin, et al. “STUDY OF THERMAL CREEP OF COATED CLADDING MATERIALS.” Acta Polytechnica CTU Proceeding 19 (December 2018): p. 22. © 2018 Czech Technical University in Prague
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