Chemical oxygen diffusion coefficient measurement by conductivity relaxation—correlation between tracer diffusion coefficient and chemical diffusion coefficient

Chemical oxygen diffusion coefficient ( D ̃ ) was measured by conductivity relaxation experiments on La 2Cu 0.5Ni 0.5O 4+δ ceramics. This method consists of abruptly changing the oxygen partial pressure in the surrounding atmosphere of the sample. The consequent evolution of the electrical conductiv...

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Veröffentlicht in:	Journal of the European Ceramic Society 2004, Vol.24 (6), p.1265-1269
Hauptverfasser:	Mauvy, F., Bassat, J.M., Boehm, E., Dordor, P., Grenier, J.C., Loup, J.P.
Format:	Artikel
Sprache:	eng
Schlagworte:	Applied sciences Building materials. Ceramics. Glasses Ceramic industries Chemical industry and chemicals Chemical Sciences Condensed matter: structure, mechanical and thermal properties Diffusion Diffusion in solids Electrical conductivity Electrotechnical and electronic ceramics Exact sciences and technology Fuel cells cathode Ionic conductivity Material chemistry Physics Self-diffusion and ionic conduction in nonmetals Technical ceramics Transition metal oxide Transport properties of condensed matter (nonelectronic)
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