Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1447862 | Acta Materialia | 2010 | 9 Pages |
Abstract
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.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Doh Won Jung, Keith L. Duncan, Eric D. Wachsman,