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2015 | 127 | 4 | 888-890
Article title

Synthesis and Characterization of Samarium-Doped CeO₂ Powders as a Solid Electrolyte by Using Pechini Method

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Languages of publication
EN
Abstracts
EN
In the trivalent rare-earth doped ceria electrolyte for SOFC applications, the highest conductivities are observed for Ce_{1-x}Sm_{x}O_{2-x/2} and Ce_{1-x}Gd_{x}O_{2-x/2}. In this study, fully dense samarium doped ceria ceramics (SDC), Sm_{x}Ce_{1-x}O_{2-x/2} (x=0.1) have been synthesized via Pechini method. The phase identification, microstructural properties and bond structure of SDC samples were studied by using X-ray diffraction (XRD), scanning electron microscopy (SEM) and Fourier Transform- Infrared Spectroscopy (FTIR). The XRD results indicate that a single-phase fluorite structure has formed at relatively low calcination temperature of 500°C. This method yields high purity ultrafine powders which can form dense electrolyte at relatively low sintering temperatures. The SEM results show that a complete solid solution between ceria and samarium was obtained at the sintering temperature of 1400°C.
Keywords
EN
Publisher

Year
Volume
127
Issue
4
Pages
888-890
Physical description
Dates
published
2015-04
Contributors
author
  • Istanbul University, Faculty of Engineering, Department of Metallurgical Engineering, Avcilar 34320, Istanbul, Turkey
References
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Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.bwnjournal-article-appv127n4003kz
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