Determination of the Diffusion-Coefficients of Iron and Chromium in Pb17Li

Simon N; Flament T; Terlain A; Deslouis C

International Journal of Heat and Mass Transfer, Vol.38, No.16, 3085-3090, 1995

DOI10.1016/0017-9310(94)00368-6 Export Citation

Determination of the Diffusion-Coefficients of Iron and Chromium in Pb17Li

Simon N, Flament T, Terlain A, Deslouis C

A method with controlled forced convection using a cylindrical rotating sample has been devised to determine the diffusion coefficients of iron and chromium dissolved in Pb17Li liquid metal at 500 degrees C. The following values have been obtained : D(Fe/Pb17Li)500 degrees C = 4+/-2 x 10(-14) m(2) s(-1) D(Cr/Pb17Li)500 degrees C = 8+/-2.5 x 10(-11) m(2) s(-1). A value of chromium solubility in Pbl7Li at 500 degrees C has also been deduced, C-s = 90.9 g m(-3) (10 wppm), which is compatible with the existing data at lower temperatures.