NDLI: Low temperature processing of dense samarium-doped CeO$_{2}$ ceramics: sintering and intermediate temperature ionic conductivity

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Low temperature processing of dense samarium-doped CeO$_{2}$ ceramics: sintering and intermediate temperature ionic conductivity

Content Provider	Springer Nature Link
Author	Singh, K. Acharya, S. A. Bhoga, S. S.
Copyright Year	2007
Abstract	Samarium-doped Ceria powders for solid electrolyte ceramics were synthesized by a combustion process. Cerium nitrate and samarium nitrate were used as the starting materials, and glycine was used as fuel. Decomposition of unburned nitrogen and carbon residues was investigated by simultaneous thermogravimetry analysis and differential thermal analysis experiments. The X-ray diffraction results showed that the single-phase fluorite structure forms at a relatively low calcination temperature of 800 °C. X-rays patterns of the SDC powders revealed that the crystallite size of the powders increases with increasing calcination temperature. The sintering behavior results showed that more than 96% of the relative density is obtained for powders sintered at 1,100 °C for 8 h. The alternating current impedance spectroscopy results showed that the SDC15 sample sintered at 1,100 °C has ionic conductivity of 0.015 Scm$^{−1}$at 650 °C in air. The present work results have indicated that glycine–nitrate route is a relatively low-temperature preparation technique to synthesize SDC powders with a high sinterability and a good ionic conductivity.
Starting Page	429
Ending Page	434
Page Count	6
File Format	PDF
ISSN	09477047
Journal	Ionics
Volume Number	13
Issue Number	6
e-ISSN	18620760
Language	English
Publisher	Springer-Verlag
Publisher Date	2007-10-10
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Glycine–nitrate combustion synthesis routes Samarium-doped ceria Sinterability Ionic conductivity Electrical Power Generation and Transmission Renewable Energy Sources Condensed Matter Physical Chemistry Materials Science Electrochemistry
Content Type	Text
Resource Type	Article
Subject	Physics and Astronomy Engineering Materials Science Chemical Engineering

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