Fundamental data: Solubility of nickel and oxygen and diffusivity of iron and oxygen in molten LBE

J. Abella, A. Verdaguer, S. Colominas, K. Ginestar, L. Martinelli

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Resum

Experiments for determining nickel solubility limit and iron diffusion coefficient are presented and their results are discussed. Nickel solubility limit is determined by two methods: ex situ by solid sampling followed by ICP-AES analysis and in situ by Laser Induced Breakdown Spectroscopy and their results are compared. The iron diffusion coefficient is obtained using the technique of rotating specimen dissolution. Also a method to determine the oxygen solubility and diffusivity in LBE is developed and results at 460, 500 and 540 °C are presented. It is based on the following electrochemical cell: O2 (reference mixture), Pt //YSZ//O2 (LBE) which can work as an oxygen sensor or as a coulometric pump.

Idioma originalAnglès
Pàgines (de-a)329-337
Nombre de pàgines9
RevistaJournal of Nuclear Materials
Volum415
Número3
DOIs
Estat de la publicacióPublicada - 31 d’ag. 2011

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