Liquid-state diffusion of Na2O–CaO–SiO2 system

The concentration distributions after liquid-state diffusion at 1200°C were measured by using an electron probe microanalyzer for two diffusion couples with an average composition of 16Na2O⋅12CaO⋅72SiO2 (wt%). The diffusion profiles agreed satisfactorily with the theoretical profiles calculated by t...

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Veröffentlicht in:The Journal of chemical physics 1978-03, Vol.68 (5), p.2046-2052
Hauptverfasser: Wakabayashi, Hajimu, Oishi, Y.
Format: Artikel
Sprache:eng
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Zusammenfassung:The concentration distributions after liquid-state diffusion at 1200°C were measured by using an electron probe microanalyzer for two diffusion couples with an average composition of 16Na2O⋅12CaO⋅72SiO2 (wt%). The diffusion profiles agreed satisfactorily with the theoretical profiles calculated by the five-component diffusion equations derived from the Nernst–Planck equation with assumptions of two oxygen ionic species with differing diffusivities and the oxygen density conservation.
ISSN:0021-9606
1089-7690
DOI:10.1063/1.436027