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|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 Paul; FICHOT F.; FISCHER M.|
|Citation:||NUCLEAR ENGINEERING AND DESIGN vol. 238 p. 2761-7771|
|Publisher:||ELSEVIER SCIENCE SA|
|Type:||Articles in periodicals and books|
|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:||Nuclear Safety and Security|
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