Effect of total dopant concentration and dopant ratio on conductivity of (DyO1.5)x–(WO3)y–(BiO1.5)1−x−y / Doh Won Jung in Acta materialia, Vol. 58 N° 2 (Janvier 2010)  

Public ISBD [article]  inActa materialia > Vol. 58 N° 2 (Janvier 2010) . - pp. 355-363 Titre : Effect of total dopant concentration and dopant ratio on conductivity of (DyO1.5)x–(WO3)y–(BiO1.5)1−x−y Type de document : texte imprimé Auteurs : Doh Won Jung, Auteur ; Keith L. Duncan, Auteur ; Eric D. Wachsman, Auteur Article en page(s) : pp. 355-363 Note générale : Métallurgie Langues : Anglais (eng) Mots-clés : Solid electrolytes Bismuth oxide Lattice parameter Conductivity Total dopant concentration Index. décimale : 669 Métallurgie Résumé : Dysprosium- and tungsten-stabilized bismuth oxide (DWSB) electrolytes were developed to achieve higher conductivity. With double doping, stabilization of the cubic phase was achieved with as little as 12 mol.% total dopant concentration, resulting in higher conductivity. The conductivity of DWSB electrolytes increased linearly as the total dopant concentrations decreased with fixed dopant ratio. Overall, DWSB has a closer inherent structure to pure δ-Bi2O3 than any singly doped compositions. Both lattice parameter and conductivity linearly extrapolate with total dopant concentration to that of pure δ-Bi2O3, resulting in the ability to stabilize δ-phase at lower dopant concentration, and thus achieving higher conductivity. DEWEY : 669 ISSN : 1359-6454 En ligne : http://www.sciencedirect.com/science?_ob=PublicationURL&_tockey=%23TOC%235556%23 [...] [article] Effect of total dopant concentration and dopant ratio on conductivity of (DyO1.5)x–(WO3)y–(BiO1.5)1−x−y [texte imprimé] / Doh Won Jung, Auteur ; Keith L. Duncan, Auteur ; Eric D. Wachsman, Auteur . - pp. 355-363. Métallurgie Langues : Anglais (eng) in Acta materialia > Vol. 58 N° 2 (Janvier 2010) . - pp. 355-363 Mots-clés : Solid electrolytes Bismuth oxide Lattice parameter Conductivity Total dopant concentration Index. décimale : 669 Métallurgie Résumé : Dysprosium- and tungsten-stabilized bismuth oxide (DWSB) electrolytes were developed to achieve higher conductivity. With double doping, stabilization of the cubic phase was achieved with as little as 12 mol.% total dopant concentration, resulting in higher conductivity. The conductivity of DWSB electrolytes increased linearly as the total dopant concentrations decreased with fixed dopant ratio. Overall, DWSB has a closer inherent structure to pure δ-Bi2O3 than any singly doped compositions. Both lattice parameter and conductivity linearly extrapolate with total dopant concentration to that of pure δ-Bi2O3, resulting in the ability to stabilize δ-phase at lower dopant concentration, and thus achieving higher conductivity. DEWEY : 669 ISSN : 1359-6454 En ligne : http://www.sciencedirect.com/science?_ob=PublicationURL&_tockey=%23TOC%235556%23 [...]

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