Structure and transport properties of composite materials on a basis of Ce0.8Nd0.2O2-δ and BaCe0.8Nd0.2O3-δ
In the present work the synthesis of materials was carried out by one-step citrate-nitrate method. The optimal synthesis temperature of the powders was chosen on the base of TG-DSC data. Phase nature of the synthesized materials was investigated by XRD and Rietveld refinement data analyzes. The infl...
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| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Ural Federal University
2015-03-01
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| Series: | Chimica Techno Acta |
| Subjects: | |
| Online Access: | https://chimicatechnoacta.ru/article/view/1095 |
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| Summary: | In the present work the synthesis of materials was carried out by one-step citrate-nitrate method. The optimal synthesis temperature of the powders was chosen on the base of TG-DSC data. Phase nature of the synthesized materials was investigated by XRD and Rietveld refinement data analyzes. The influence of the perovskite phase content in the system of (1-x)Ce0.8Nd0.2O2-δ-xBaCe0.8Nd0.2O3-δ ( x = 0 , 0.25, 0.5 , 0.75 and 1) on the crystallite and particle size of powders and structure properties of ceramics (relative density, porosity, grain size) were investigated. Measurements of the electrical conductivity of materials in a wide ranges of temperatures (550-900 °C) and oxygen partial pressure (10-23≤pO2/atm≤0,21) revealed features of transport in the composite system. |
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| ISSN: | 2411-1414 |