Reaction Capsule Design for Interaction of Heavy Liquid Metal Coolant, Fuel Cladding, and Simulated JOG Phase at Accident Conditions

High temperature corrosion of fuel cladding material (15-15Ti) in high burn-up situations has been an important topic for molten metal-cooled Gen-IV reactors. The present study aims to investigate the simultaneous impact of liquid lead (coolant side) and cesium molybdate (fuel side) on the cladding...

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Main Authors: Doğaç Tarı, Teodora Retegan Vollmer, Christine Geers
Format: Article
Language:English
Published: MDPI AG 2024-02-01
Series:Journal of Nuclear Engineering
Subjects:
Online Access:https://www.mdpi.com/2673-4362/5/1/5
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author Doğaç Tarı
Teodora Retegan Vollmer
Christine Geers
author_facet Doğaç Tarı
Teodora Retegan Vollmer
Christine Geers
author_sort Doğaç Tarı
collection DOAJ
description High temperature corrosion of fuel cladding material (15-15Ti) in high burn-up situations has been an important topic for molten metal-cooled Gen-IV reactors. The present study aims to investigate the simultaneous impact of liquid lead (coolant side) and cesium molybdate (fuel side) on the cladding tube material. A capsule was designed and built for experiments between 600 °C and 1000 °C. In order to simulate a cladding breach scenario, a notch design on the cladding tube was investigated pre- and postexposure. Material thinning by corrosion and leaching at temperatures ≥ 900 °C caused breaches at the notches after 168 h exposure. The temperature dependent cladding thinning phenomenon was used for kinetic interpretation. As the first of a two-part study, this paper will focus on the exposure capsule performance, including metallographic cross-section preparation and preliminary results on the interface chemistry.
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spelling doaj.art-6b3109d06a5d41968bbe884780b0306a2024-03-27T13:49:33ZengMDPI AGJournal of Nuclear Engineering2673-43622024-02-0151577310.3390/jne5010005Reaction Capsule Design for Interaction of Heavy Liquid Metal Coolant, Fuel Cladding, and Simulated JOG Phase at Accident ConditionsDoğaç Tarı0Teodora Retegan Vollmer1Christine Geers2Nuclear Chemistry and Industrial Materials Recycling, Department of Chemistry and Chemical Engineering, Chalmers University of Technology, 412 96 Gothenburg, SwedenNuclear Chemistry and Industrial Materials Recycling, Department of Chemistry and Chemical Engineering, Chalmers University of Technology, 412 96 Gothenburg, SwedenEnvironmental Inorganic Chemistry, Department of Chemistry and Chemical Engineering, Chalmers University of Technology, 412 96 Gothenburg, SwedenHigh temperature corrosion of fuel cladding material (15-15Ti) in high burn-up situations has been an important topic for molten metal-cooled Gen-IV reactors. The present study aims to investigate the simultaneous impact of liquid lead (coolant side) and cesium molybdate (fuel side) on the cladding tube material. A capsule was designed and built for experiments between 600 °C and 1000 °C. In order to simulate a cladding breach scenario, a notch design on the cladding tube was investigated pre- and postexposure. Material thinning by corrosion and leaching at temperatures ≥ 900 °C caused breaches at the notches after 168 h exposure. The temperature dependent cladding thinning phenomenon was used for kinetic interpretation. As the first of a two-part study, this paper will focus on the exposure capsule performance, including metallographic cross-section preparation and preliminary results on the interface chemistry.https://www.mdpi.com/2673-4362/5/1/515-15Ticesium molybdatefuel claddinggen-IV reactorsJOGliquid lead
spellingShingle Doğaç Tarı
Teodora Retegan Vollmer
Christine Geers
Reaction Capsule Design for Interaction of Heavy Liquid Metal Coolant, Fuel Cladding, and Simulated JOG Phase at Accident Conditions
Journal of Nuclear Engineering
15-15Ti
cesium molybdate
fuel cladding
gen-IV reactors
JOG
liquid lead
title Reaction Capsule Design for Interaction of Heavy Liquid Metal Coolant, Fuel Cladding, and Simulated JOG Phase at Accident Conditions
title_full Reaction Capsule Design for Interaction of Heavy Liquid Metal Coolant, Fuel Cladding, and Simulated JOG Phase at Accident Conditions
title_fullStr Reaction Capsule Design for Interaction of Heavy Liquid Metal Coolant, Fuel Cladding, and Simulated JOG Phase at Accident Conditions
title_full_unstemmed Reaction Capsule Design for Interaction of Heavy Liquid Metal Coolant, Fuel Cladding, and Simulated JOG Phase at Accident Conditions
title_short Reaction Capsule Design for Interaction of Heavy Liquid Metal Coolant, Fuel Cladding, and Simulated JOG Phase at Accident Conditions
title_sort reaction capsule design for interaction of heavy liquid metal coolant fuel cladding and simulated jog phase at accident conditions
topic 15-15Ti
cesium molybdate
fuel cladding
gen-IV reactors
JOG
liquid lead
url https://www.mdpi.com/2673-4362/5/1/5
work_keys_str_mv AT dogactarı reactioncapsuledesignforinteractionofheavyliquidmetalcoolantfuelcladdingandsimulatedjogphaseataccidentconditions
AT teodorareteganvollmer reactioncapsuledesignforinteractionofheavyliquidmetalcoolantfuelcladdingandsimulatedjogphaseataccidentconditions
AT christinegeers reactioncapsuledesignforinteractionofheavyliquidmetalcoolantfuelcladdingandsimulatedjogphaseataccidentconditions