Self-diffusion of water molecules after contact with silicon-containing compounds
| Autor: | T.V. Karmazina, O.A. Vasylkevych, N.I. Mazina, V.I. Slisenko |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
quasi-elastic scattering of slow neutrons
Nuclear and High Energy Physics Self-diffusion Materials science Silicon chemistry.chemical_element crystal-like and amorphous silica lcsh:Atomic physics. Constitution and properties of matter aerosil lcsh:QC170-197 silicon-containing compounds chemistry Chemical engineering self diffusion coefficient spongolit Molecule chalcedony |
| Zdroj: | Âderna Fìzika ta Energetika, Vol 19, Iss 2, Pp 131-135 (2018) |
| ISSN: | 2074-0565 1818-331X |
| DOI: | 10.15407/jnpae2018.02.131 |
| Popis: | Influence of crystalline and amorphous silica on the diffusion coefficients of water molecules according to the experimental data on quasi-elastic scattering of slow neutrons is quantified. It was established that after the contact of silicon-containing compounds of natural origin chalcedony and spongolit with water, the mechanisms of its self-diffusion are significantly changed: self-diffusion is carried out only by the mechanism of continuous diffusion; the magnitude of the total self-diffusion coefficient of water molecules decreases and there is no contribution from the activation mechanism of self-diffusion by at least 24 hours after separation of the solid phase from the liquid. The pyrogenic amorphous silica has relatively little effect on the diffusion of water molecules. |
| Databáze: | OpenAIRE |
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