Morphology and phase distributions of molten core in a reactor vessel

•Experiments and thermodynamic analyses on morphology and phase equilibrium of corium.•NUCLEA analysis results on U-Zr-O-Fe system agreed well with the experimental findings.•U/(U+Zr) ratio in good agreement whereas some dispersions observed in oxygen and steel compositions.•Zirconium diboride phase...

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Veröffentlicht in:	Journal of nuclear materials 2020-12, Vol.542, p.152471, Article 152471
Hauptverfasser:	Song, JinHo, An, SangMo, Kim, Jong-Yun, Barrachin, M., Piar, B., Michel, B.
Format:	Artikel
Sprache:	eng
Schlagworte:	B4C Boron Boron carbide Chemical composition Chemical reactors Corium Damage Experiments Iron Morphology NUCLEA Nuclear accidents Nuclear energy Nuclear power plants Nuclear reactors Phase distribution Physical characteristics Pressurized water reactors Reactors Severe accident Solidification Thermodynamic equilibrium Thermodynamic phase equilibrium U-Zr-O-Fe system Uranium dioxide Zirconium Zirconium dioxide Zirconium oxides
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