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Corium phase equilibria based on MASCA, METCOR and CORPHAD results
A.P. Alexandrov Research Institute of Technology (NITI).ORCID iD: 0000-0001-7816-8442
Alexandrov Research Institute of Technologies (NITI).
A.P. Aleksandrov Research Institute of Technology.
Institute of Silicate Chemistry of Russian Academy of Sciences.
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2008 (English)In: Nuclear Engineering and Design, ISSN 0029-5493, E-ISSN 1872-759X, Vol. 238, no 10, 2761-2771 p.Article in journal (Refereed) Published
Abstract [en]

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 MASCAprogram and the ISTC CORPHAD project under close-to-isothermal conditions and in the ISTC METCORproject under thermal gradient conditions. Chemical equilibrium in the U–Zr–Fe(Cr,Ni,. . .)–O system isreached in all experiments. In MASCA tests the molten pool formed under inert atmosphere has twoimmiscible liquids, oxygen-enriched (oxidic) and oxygen-depleted (metallic), resulting of the miscibilitygap of the mentioned system. Sub-system data of the U–Zr–Fe(Cr,Ni,. . .)–O phase diagram investigatedwithin the ISTC CORPHAD project are interpreted in relation with the MASCA results. In METCOR teststhe equilibrium is established between oxidic liquid and mushy metallic part of the system. Results ofcomparison are discussed and the implications for IVR noted.

Place, publisher, year, edition, pages
2008. Vol. 238, no 10, 2761-2771 p.
National Category
Energy Engineering
URN: urn:nbn:se:kth:diva-53232DOI: 10.1016/j.nucengdes.2008.04.018ISI: 000259774300029OAI: diva2:469431
cited By (since 1996) 4. QC 20120110Available from: 2011-12-23 Created: 2011-12-23 Last updated: 2012-01-21Bibliographically approved

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