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Phase diagram of the ZrO2–FeO system


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Journal of Nuclear Materials, Volume 348, Issues 1-2, Pages 114-121, 1er Janvier 2006

S.V. Bechta(1), E.V. Krushinov(1), V.I. Almjashev(2), S.A. Vitol(1), L.P. Mezentseva(2), Yu.B. Petrov(3), D.B. Lopukh(3), V.B. Khabensky(1), M. Barrachin(4), S. Hellmann(5), K. Froment(6), M. Fischer(5), W. Tromm(7), D. Bottomley(8), F. Defoort(6), V.V. Gusarov(2).

Type de document > *Article de revue

Mots clés > sûreté, accident grave, corium, diagramme de phases

Unité de recherche > IRSN/DPAM/SEMIC/LEPF

Auteurs > BARRACHIN Marc

Date de publication > 01/01/2006

Résumé

The results on the ZrO2–FeO system studies in a neutral atmosphere are presented. The refined eutectic point has been found to correspond to a ZrO2 concentration of 10.3 ± 0.6 mol% at 1332 ± 5 °C. The ultimate solubility of iron oxide in zirconia has been determined in a broad temperature range, taking into account the ZrO2 polymorphism. A phase diagram of the pseudobinary system in question has been constructed.

(1) : A.P. Aleksandrov Research Institute of Technology, Sosnovy Bor 188540, Russia
(2) : Institute of Silicate Chemistry of Russian Academy of Sciences, nab. Makarova, 2, Saint-Petersburg 199034, Russia
(3) : Saint-Petersburg Electrotechnical University ‘LETI’, prof. Popova str., 5, Saint-Petersburg 197376, Russia
(4) : Institut de Radioprotection et Sûreté Nucléaire (IRSN), BP 3 F-13115 St Paul Lez Durance, France
(5) : Framatome ANP GmbH, Freyeslebenstr. 1, 91058 Erlangen, Germany
(6) : Laboratoire de Physico-chimie et Thermohydraulique Multiphasiques (LPTM), CEA/Grenoble, DTN/SE2T/LPTM – 17 rue des Martyrs, 38 054 Grenoble cedex 9, France
(7) : FZK, IKET, Karlsruhe, Forschungszentrum Karlsruhe GmbH, P.O Box 3640, D-76021 Karlsruhe, Germany
(8) : European Commission – DG – Joint Research Centre, Institute for Transuranium Elements, Postfach 2340, Hermann-von-Helmholtz Pl. 1, 76125 Karlsruhe, Germany