J. Phys. IV France
Volume 12, Numéro 8, September 2002
Page(s) 163 - 174

J. Phys. IV France
12 (2002) Pr8-163
DOI: 10.1051/jp4:20020331

Preliminary study of some parts of the quinary system Bi-Fe-Hg-O-Pb

A. Maitre, J.-M. Fiorani, J.-J. Kuntz and J.-C. Gachon

Laboratoire de Chimie du Solide Minéral, UFR Sciences, boulevard des Aiguillettes, BP. 239, 54506 Vandoeuvre-les-Nancy cedex, France

A knowledge of the system Bi-Fe-Hg-O-Pb is necessary to understand possible degradation mechanisms in the MEGAPIE spallation target window. The present work aimed at investigating a few subsystems: the ternary Bi-Hg-Pb and several oxides in order to determine the most efficient directions for studying the quinary system. Differential scanning calorimetry was used to complement literature data before computing the ternary Bi-Hg-Pb with the Thermocalc software. Oxide layers growing on T91 steel immersed in liquid Pb or Bi-Pb eutectic, in working conditions close to that of the MEGAPIE target, were identified.

© EDP Sciences 2002