A carbonate coprecipitation synthesis, simple and easily scalable to industrial level, has been successfully applied to produce Sr- and Mg-doped LaGaO3. The thermal evolution shows that the main perovskite phase crystallizes already at 1000 degrees C. Samples sintered at 1400 degrees C for 10 h have a relative density of 93% and an electrical conductivity of 7.7 . 10(-2) S cm(-1) at 800 degrees C, similar to the one reported for solid state synthesis. The presence of small amounts of secondary phases (about 17%) such as LaSrGaO4 and LaSrGa3O7 does not seem to deeply affect the electrical properties of the final material. ISI CON REFEREE P. 1892-1894
Carbonate coprecipitation synthesis of Sr- and Mg-doped LaGaO3
CRISTIANI, CINZIA;ZAMPORI, LUCA;LATORRATA, SAVERIO;PELOSATO, RENATO;DOTELLI, GIOVANNI;
2009-01-01
Abstract
A carbonate coprecipitation synthesis, simple and easily scalable to industrial level, has been successfully applied to produce Sr- and Mg-doped LaGaO3. The thermal evolution shows that the main perovskite phase crystallizes already at 1000 degrees C. Samples sintered at 1400 degrees C for 10 h have a relative density of 93% and an electrical conductivity of 7.7 . 10(-2) S cm(-1) at 800 degrees C, similar to the one reported for solid state synthesis. The presence of small amounts of secondary phases (about 17%) such as LaSrGaO4 and LaSrGa3O7 does not seem to deeply affect the electrical properties of the final material. ISI CON REFEREE P. 1892-1894| File | Dimensione | Formato | |
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