Master sintering curve for Gd-doped CeO2 solid electrolytes

D. Z. De Florio; V. Esposito; E. Traversa; R. Muccillo; F. C. Fonseca

doi:10.1007/s10973-009-0238-6

Master sintering curve for Gd-doped CeO₂ solid electrolytes

D. Z. De Florio, V. Esposito, E. Traversa, R. Muccillo, F. C. Fonseca

Research output: Contribution to journal › Article › peer-review

31 Scopus citations

Abstract

The sintering behavior of gadolinia-doped ceria powders was studied by the master sintering curve (MSC). Dilatometric analyses of powders produced by a soft chemical method were performed to provide the experimental data set for the construction of the MSC. The assumed model provided good fittings of the MSC and the activation energy for the sintering of Ce_1-xGd _xO_3-δ, with x = 0, 0.05, 0.1, and 0.2 were found to be in the 218-325 KJ/mol range, depending on the dopant content. The results supported that both the nanometric size of the particles and the difference in ionic radii between Gd³⁺ and Ce⁴⁺ affects the sintering of Gd-doped CeO₂.

Original language	English (US)
Pages (from-to)	143-147
Number of pages	5
Journal	Journal of Thermal Analysis and Calorimetry
Volume	97
Issue number	1
DOIs	https://doi.org/10.1007/s10973-009-0238-6
State	Published - Jul 2009
Externally published	Yes

Bibliographical note

Funding Information:
Acknowledgements Authors are thankful to CNPq, FAPESP, and MIUR for financial support.

Keywords

Ceria
IT-SOFC
Master sintering curve
Solid electrolyte
Solid oxide fuel cell

ASJC Scopus subject areas

Condensed Matter Physics
Physical and Theoretical Chemistry

Access to Document

10.1007/s10973-009-0238-6

Cite this

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title = "Master sintering curve for Gd-doped CeO2 solid electrolytes",

abstract = "The sintering behavior of gadolinia-doped ceria powders was studied by the master sintering curve (MSC). Dilatometric analyses of powders produced by a soft chemical method were performed to provide the experimental data set for the construction of the MSC. The assumed model provided good fittings of the MSC and the activation energy for the sintering of Ce1-xGd xO3-δ, with x = 0, 0.05, 0.1, and 0.2 were found to be in the 218-325 KJ/mol range, depending on the dopant content. The results supported that both the nanometric size of the particles and the difference in ionic radii between Gd3+ and Ce4+ affects the sintering of Gd-doped CeO2.",

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author = "{De Florio}, {D. Z.} and V. Esposito and E. Traversa and R. Muccillo and Fonseca, {F. C.}",

note = "Funding Information: Acknowledgements Authors are thankful to CNPq, FAPESP, and MIUR for financial support.",

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AU - De Florio, D. Z.

AU - Esposito, V.

AU - Traversa, E.

AU - Muccillo, R.

AU - Fonseca, F. C.

N1 - Funding Information: Acknowledgements Authors are thankful to CNPq, FAPESP, and MIUR for financial support.

PY - 2009/7

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N2 - The sintering behavior of gadolinia-doped ceria powders was studied by the master sintering curve (MSC). Dilatometric analyses of powders produced by a soft chemical method were performed to provide the experimental data set for the construction of the MSC. The assumed model provided good fittings of the MSC and the activation energy for the sintering of Ce1-xGd xO3-δ, with x = 0, 0.05, 0.1, and 0.2 were found to be in the 218-325 KJ/mol range, depending on the dopant content. The results supported that both the nanometric size of the particles and the difference in ionic radii between Gd3+ and Ce4+ affects the sintering of Gd-doped CeO2.

AB - The sintering behavior of gadolinia-doped ceria powders was studied by the master sintering curve (MSC). Dilatometric analyses of powders produced by a soft chemical method were performed to provide the experimental data set for the construction of the MSC. The assumed model provided good fittings of the MSC and the activation energy for the sintering of Ce1-xGd xO3-δ, with x = 0, 0.05, 0.1, and 0.2 were found to be in the 218-325 KJ/mol range, depending on the dopant content. The results supported that both the nanometric size of the particles and the difference in ionic radii between Gd3+ and Ce4+ affects the sintering of Gd-doped CeO2.

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KW - Master sintering curve

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