Title: Corium Phase Equilibria Based on MASCA, METCOR and CORPHAD Results
Authors: BECHTA S. V.GRANOVSKY V. S.KHABENSKY V. B.GUSAROV V. V.ALMIASHEV V. I.MEZENTSEVA L. P.KRUSHINOV E. V.KOTOVA S. Yu.KOSAREVSKY R. A.BARRACHIN M.BOTTOMLEY PaulFICHOT F.FISCHER M.
Citation: NUCLEAR ENGINEERING AND DESIGN vol. 238 p. 2761-7771
Publisher: ELSEVIER SCIENCE SA
Publication Year: 2008
JRC N°: JRC50054
ISSN: 0029-5493
URI: http://www.elsevier.com/locate/nucengdes
http://publications.jrc.ec.europa.eu/repository/handle/JRC50054
DOI: 10.1016/j.nucengdes.2008.04.018
Type: Articles in Journals
Abstract: Experimental data on component partitioning between suboxidized corium melt and steel in the invessel melt retention (IVR) conditions are compared. The data are produced within the OECD MASCA program and the ISTC CORPHAD project under close-to-isothermal conditions and in the ISTC METCOR project under thermal gradient conditions. Chemical equilibrium in the U¿Zr¿Fe(Cr,Ni,. . .)¿O system is reached in all experiments. In MASCA tests the molten pool formed under inert atmosphere has two immiscible liquids, oxygen-enriched (oxidic) and oxygen-depleted (metallic), resulting of the miscibility gap of the mentioned system. Sub-system data of the U¿Zr¿Fe(Cr,Ni,. . .)¿O phase diagram investigated within the ISTC CORPHAD project are interpreted in relation with the MASCA results. In METCOR tests the equilibrium is established between oxidic liquid and mushy metallic part of the system. Results of comparison are discussed and the implications for IVR noted.
JRC Institute:Institute for Transuranium Elements

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