Abstract
(WO 3) 0.15(BiO 1.5) 0.85 exhibits a tetragonal structure derived from the fluorite subcell. The electrical conductivity of (WO 3) 0.15(BiO 1.5) 0.85 is lower than that of Y 2O 3-doped Bi 2O 3. The structure and electrical conductivity of samples formulated as (YO 1.5) x (WO 3) 0.15(BiO 1.5) 0.85- x (x∈=∈0.1, 0.2, 0.3, and 0.4) were investigated. The as-sintered (YO 1.5) 0.1(WO 3) 0.15(BiO 1.5) 0.75 exhibited a single cubic structure that is isostructural with δ-Bi 2O 3. For x∈=∈0.2, 0.3, and 0.4, the as-sintered samples consisted of a cubic fluorite structure and rhombohedral Y 6WO 12. After heat treatment at 600 °C for 200 h, the cubic structures are stable for x∈=∈0.1, 0.3, and 0.4. A transformation from cubic to rhombohedral phase after heat treatment at 600 °C for 200 h was observed in the sample originally formulated as (YO 1.5) 0.2(WO 3) 0.15(BiO 1.5) 0.65.
Original language | English |
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Pages (from-to) | 951-957 |
Number of pages | 7 |
Journal | Journal of Solid State Electrochemistry |
Volume | 13 |
Issue number | 6 |
DOIs | |
Publication status | Published - 2009 Jun 1 |
All Science Journal Classification (ASJC) codes
- Materials Science(all)
- Condensed Matter Physics
- Electrochemistry
- Electrical and Electronic Engineering