Flash sintering samaria-doped ceria-carbon nanotube composites
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Ceramics
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Composite ceramic green pellets were prepared by attrition milling a mixture of
(CeO2)0.8(Sm2O3)0.2 (samaria-doped ceria, SDC) ceramic powder and carbon nanotubes (CNTs),
followed by uniaxial and isostatic pressing. The pellets were sintered inside a dilatometer by
applying AC electric fields at 850 C and limiting the electric current to 1 A, achieving 20.2% final
shrinkage. The SDC samples reached 13.3% shrinkage under the same conditions. Higher average
grain sizes were measured in specimens flash sintered with CNTs. Impedance spectroscopy analyses
show that the specimens flash sintered with addition of CNTs have higher electrical conductivity.
Higher delivered Joule heating at the interfaces due to the presence of the electronic conductors
(CNTs) are proposed as the main reason for that improvement of the electrical behavior.
Como referenciar
MUCCILLO, REGINALDO; FERLAUTO, ANDRE S.; MUCCILLO, ELIANA N.S. Flash sintering samaria-doped ceria-carbon nanotube composites. Ceramics, v. 2, n. 1, p. 64-73, 2019. DOI: 10.3390/ceramics2010006. Disponível em: http://repositorio.ipen.br/handle/123456789/29986. 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.