Ionic conductivities and phase transitions of lanthanide rare-earth substituted La2Mo2O9
β Scribed by Dah-Shyang Tsai; Meng-Ju Hsieh; Jang-Chung Tseng; Hsin-Yi Lee
- Book ID
- 108169876
- Publisher
- Elsevier Science
- Year
- 2005
- Tongue
- English
- Weight
- 454 KB
- Volume
- 25
- Category
- Article
- ISSN
- 0955-2219
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## Abstract La~2β__x__~Bi~__x__~Mo~2~O~__y__~ (__x__β=β0, 0.02, 0.03, 0.04, 0.05, 0.06, 0.08, 0.1, 0.16, 0.24, 0.3) ceramic samples have been characterized by Xβray diffraction, differential scanning calorimetry (DSC) and conductivity measurements in order to assess the dynamics of the transitions
A room temperature 17 O NMR study of La 2 Mo 2 O 9 , a fast oxide ionic conductor exhibiting a phase transition at 580 β’ C between a low-temperature a-phase and a high-temperature b-phase, is presented. Four partly overlapping quasi-continuous distributions of oxygen sites are evidenced from 1D magi