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Study of the spontaneous oxidation of sodium in air by EPMA and Monte Carlo simulations

Oliva, Fabiana Yolanda et al · Elsevier Science · 2019

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Author / responsible party
Oliva, Fabiana Yolanda et al
Publisher
Elsevier Science
Year
2019
ISSN
1093-1099
ISSN
1093-1099
Language
English

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The growth of the corrosion layer occurring when a sodium surface is exposed to air under room conditions was studied considering the ratio between O − Kα and Na − Kα characteristic peak intensities from the X-ray emission spectrum collected in a scanning electron microscope for different exposure times of metallic sodium to air. Comparison between experimental results and Monte Carlo simulations leads to the conclusion that Na oxidation in air proceeds in two stages: at relatively short times (up to 6.5 s) a Na-rich layer of composition Na 2 O is formed. At longer times the oxide layer evolves through reaction with oxygen to a composition that can be described by the stoichiometry Na 2 O 2 . While the first of these processes seems to be limited by the reaction of the oxygen molecule with sodium, the second one appears to be limited by oxygen diffusion in the growing layer. Fil: Oliva, Fabiana Yolanda. Universidad Nacional de Córdoba; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; Argentina Fil: Leiva, Ezequiel Pedro M.. Universidad Nacional de Córdoba; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; Argentina

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APA 7

Oliva, F. Y. E. A. (2019). Study of the spontaneous oxidation of sodium in air by EPMA and Monte Carlo simulations. http://hdl.handle.net/11336/125456

MLA

Oliva, Fabiana Yolanda et al. "Study of the spontaneous oxidation of sodium in air by EPMA and Monte Carlo simulations." 2019. http://hdl.handle.net/11336/125456.

Chicago

Oliva, Fabiana Yolanda et al. 2019. "Study of the spontaneous oxidation of sodium in air by EPMA and Monte Carlo simulations.". http://hdl.handle.net/11336/125456.

Harvard

Oliva, F. Y. E. A. 2019, Study of the spontaneous oxidation of sodium in air by EPMA and Monte Carlo simulations, Elsevier Science, available at: http://hdl.handle.net/11336/125456 [Accessed 10 Aug. 2026].

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Title
Study of the spontaneous oxidation of sodium in air by EPMA and Monte Carlo simulations
Author / contributors
Oliva, Fabiana Yolanda et al
Publisher
Elsevier Science
Publication year
2019
ISSN
1093-1099
ISSN
1093-1099
Language
English

Subjects

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ELECTRON PROBE MICRO-ANALYSIS; MONTE CARLO SIMULATIONS; SODIUM OXIDATION GROWTH KINETICS; https://purl.org/becyt/ford/1.3; https://purl.org/becyt/ford/1
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