This title appears in the Scientific Report :
2003
Please use the identifier:
http://hdl.handle.net/2128/2787 in citations.
Please use the identifier: http://dx.doi.org/10.1039/b302696e in citations.
Thermodynamic Investigations of Sr- and Mg-Deoped Lanthanum Gallate by Knudsen Effusion Mass Spectrometry and Defect Chemical Analysis
Thermodynamic Investigations of Sr- and Mg-Deoped Lanthanum Gallate by Knudsen Effusion Mass Spectrometry and Defect Chemical Analysis
The vaporization of the La1-xSrxGa1-yMgyO3-(x+y)/2 perovskite phases was investigated by the use of Knudsen effusion mass spectrometry in the temperature range of 1608-1901 K. The partial pressures of the gaseous species O-2, Mg, Sr, SrO, Ga, GaO, Ga2O and LaO were determined over the samples invest...
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Personal Name(s): | Matraszek, A. |
---|---|
Miller, M. / Singheiser, L. / Kobertz, D. / Hilpert, K. / Martin, M. | |
Contributing Institute: |
Werkstoffstruktur und Eigenschaften; IWV-2 |
Published in: | Physical Chemistry Chemical Physics, 5 (2003) S. 3042 - 3052 |
Imprint: |
Cambridge
RSC Publ.
2003
|
Physical Description: |
3042 - 3052 |
DOI: |
10.1039/b302696e |
Document Type: |
Journal Article |
Research Program: |
Werkstoffsysteme für Kraftwerke |
Series Title: |
Physical Chemistry Chemical Physics
5 |
Subject (ZB): | |
Link: |
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Publikationsportal JuSER |
Please use the identifier: http://dx.doi.org/10.1039/b302696e in citations.
The vaporization of the La1-xSrxGa1-yMgyO3-(x+y)/2 perovskite phases was investigated by the use of Knudsen effusion mass spectrometry in the temperature range of 1608-1901 K. The partial pressures of the gaseous species O-2, Mg, Sr, SrO, Ga, GaO, Ga2O and LaO were determined over the samples investigated. The equilibrium partial pressures were used for the calculation of thermodynamic activities of Ga2O3 (1700 K), MgO (1800 K) and SrO (1800 K) in the perovskite phase at the temperatures given in parentheses. The results are compared with the thermodynamic data of LaGaO3(s) without additives. The influence of the Mg concentration on the thermodynamic activity of Ga2O3 was carefully studied and modeled by a defect chemical analysis. |