Isotopic Exchange of Gaseous Oxygen with Mechanoactivated Manganese Oxides

Anatoly Yakovlevich Fishman; Tatiana Eugenievna Kurennykh; Vladimir Borisovich Vykhodets; V.B. Vykhodets

doi:10.4028/www.scientific.net/DDF.326-328.713

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HomeDefect and Diffusion ForumDefect and Diffusion Forum Vols. 326-328Isotopic Exchange of Gaseous Oxygen with...

Isotopic Exchange of Gaseous Oxygen with Mechanoactivated Manganese Oxides

Abstract:

sotope exchange of oxygen ¹⁸О₂ with oxides Mn₂O₃ and Mn₃O₄ was investigated in the temperature range of 300700°C. It was established that the content of the isotope O¹⁸ in mechanically activated powders was noticeably higher than in the initial ones. Already at relatively low annealing temperatures isotope exchange leads to nearly the maximum possible under the given conditions replacement of atoms ¹⁶O to ¹⁸O. The isotope exchange parameters connected with the processes at the boundaries of the particles of mechanoactivated powder and within their volume were determined.

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Periodical:

Defect and Diffusion Forum (Volumes 326-328)

Pages:

713-718

DOI:

https://doi.org/10.4028/www.scientific.net/DDF.326-328.713

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Online since:

April 2012

Authors:

Anatoly Yakovlevich Fishman, Tatiana Eugenievna Kurennykh, Vladimir Borisovich Vykhodets, V.B. Vykhodets

Keywords:

Diffusion, Isotope Exchange, Nanoparticle, Nuclear Microanalysis, Oxide, Oxygen

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References

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