Effect of iron doping nano-GDC synthesized via low temperature heterogeneous precipitation
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2018
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INTERNATIONAL CONGRESS ON CERAMICS, 7th; CONGRESSO BRASILEIRO DE CERÂMICA, 62.
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Gadolinium-doped cerium oxide exhibits beneficial properties for application as an
electrolyte in electrochemical devices. However, it requires a high sintering
temperature to obtain a fully dense body. In this study the effect of adding iron oxide
to gadolinium-doped cerium (GDC) oxide to improve its sinterability and
electrochemical performance was accessed. Doped GDC with different Fe molar
concentrations (1, 3, 5 mol%) was successfully synthesized by a one-step aqueous
precipitation method. Adding Fe 2 O 3 as a sintering aid increases the GDC
densification and reduces its usual sintering temperature by ~300 °C. The
microstructural and electrical properties of sintered pellets evidenced that using iron
oxide as a sintering aid is a promising strategy to decrease sintering temperature of
GDC.
Como referenciar
MORAES, L.P.R.; MACHADO, M.; NUNES, L.; FONSECA, F.C. Effect of iron doping nano-GDC synthesized via low temperature heterogeneous precipitation. In: INTERNATIONAL CONGRESS ON CERAMICS, 7th; CONGRESSO BRASILEIRO DE CERÂMICA, 62., June 17-21, 2018, Foz do Iguaçu, PR. Abstract... p. 541-541. Disponível em: http://repositorio.ipen.br/handle/123456789/29695. Acesso em: 30 Dec 2025.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.