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AbstractAbstract
[en] The objective of the study has been to investigate the phase interactions and melting phenomena that result when the LWR core temperature is increased due to the loss of coolant accident. Diffusin couple composed of UO2-Zircaloy and steel as well as models of fuel elements were used in experiments. In the inert atmosphere low-melting metallic eutectics appear. In oxidizing atmosphere the melting temperature is pushed towards higher values due to the oxidation of metallic components. The attendant embrittlement of fuel cladding can lead to simultaneous collapse of fuel rods. The intensive melting is observed above 1773 deg K, steel spacers melting first. The melt dissolves the parts of Zircaloy cladding and penetrates between UO2 pellets. (author)
Original Title
Interakcije komponent gorivnega elementa lahkovodnega rektorja v primeru izpada hladilnega sistema
Primary Subject
Source
1982; 8 p; Society for Electronics,Telecommunications, Automation, and Nuclear Engineering; Belgrade (Yugoslavia); ETAN '82 - 26. Conference of the Society for Electronics, Telecommunications, Computers, Automation, and Nuclear Engineering; 26. Konferencija za ETAN; Subotica (Yugoslavia); 7-10 Jun 1982; Also available from the Institute of Nuclear Sciences VINCA; 9 refs., 4 figs.
Record Type
Miscellaneous
Literature Type
Conference
Report Number
Country of publication
ACCIDENTS, ALLOYS, CARBON ADDITIONS, CHEMICAL REACTIONS, IRON ALLOYS, IRON BASE ALLOYS, PELLETS, PHASE TRANSFORMATIONS, PHYSICAL PROPERTIES, REACTOR ACCIDENTS, REACTOR COMPONENTS, REACTORS, THERMODYNAMIC PROPERTIES, TRANSITION ELEMENT ALLOYS, TRANSITION TEMPERATURE, ZIRCONIUM ALLOYS, ZIRCONIUM BASE ALLOYS
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