Dilatometry analysis of the sintering process of nanostructured gadolinia-doped ceria
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2016
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Journal of Thermal Analysis and Calorimetry
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Resumo
The sintering process of compacts of nanostructured
gadolinia-doped ceria was investigated by dilatometry
and by construction of the master sintering curve. Corrections
for the thermal expansion of the experimental setup
and mass loss were proposed. The aim of this work was to
investigate the sintering evolution of compacts constituted
by a powder material with very high specific surface area
and to verify the effectiveness of the proposed corrections
for generating reliable density data. Validation of the
obtained results was accomplished by comparison of corrected
data with density values obtained for conventionally
sintered compacts. Dilatometry experiments were carried
out for 3, 6, 10 and 12 C min-1 heating rates. Good convergence
of relative density curves calculated from corrected
shrinkage data was obtained. The determined value of
the activation energy for sintering of nanostructured gadolinia-
doped ceria compacts is 576 kJ mol-1.
Como referenciar
BATISTA, R.M.; MUCCILLO, E.N.S. Dilatometry analysis of the sintering process of nanostructured gadolinia-doped ceria. Journal of Thermal Analysis and Calorimetry, v. 126, n. 3, p. 1007-1013, 2016. DOI: 10.1007/s10973-016-5674-5. Disponível em: http://repositorio.ipen.br/handle/123456789/26848. Acesso em: 28 Feb 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.