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

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...

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Bibliographic Details
Published in:Journal of nuclear materials 2011-08, Vol.415 (3), p.329-337
Main Authors: Abella, J., Verdaguer, A., Colominas, S., Ginestar, K., Martinelli, L.
Format: Article
Language:English
Subjects:
Applied sciences
Controled nuclear fusion plants
Energy
Energy. Thermal use of fuels
Exact sciences and technology
Fission nuclear power plants
Fuels
Installations for energy generation and conversion: thermal and electrical energy
Nuclear fuels
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Summary: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: O 2 (reference mixture), Pt //YSZ//O 2 (LBE) which can work as an oxygen sensor or as a coulometric pump.
ISSN:0022-3115
1873-4820
DOI:10.1016/j.jnucmat.2011.04.036