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Transactions of the INDIAN CERAMIC SOCIETY   Vol. 64  2005
Synthesis and Characterization of Nanocrystalline Ce0.9Gd0.1O1.95 by Citrate-Gel Decomposition Technique
R. V. Mangalaraja, S. Ananthakumar and P. Manohar
Pages : 193-196
DOI :10.1080/0371750X.2005.11012211
Abstract
Nanocrystalline gadolinia doped ceria powder (CGO) of composition Ce0.9Gd0.1O1.95 was synthesized by citrate-gel decomposition technique and subsequently calcined at 700C. The as-prepared and calcined powders were characterized by XRD and TEM analyses. The particle size (between 20 and 30 nm) was determined by TEM analysis. Uniaxially pressed samples were sintered at 1400 and 1500C. A sintered density of nearly 99% of theoretical density was observed for samples sintered at 1500C for 6 h. The electrical conductivity of the order of 0.029 and 0.0485 S.cm1 at 600 and 700C, respectively was obtained for the sample sintered at 1500C for 6 h. The sintered density and microstructure were also studied and reported.
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