REIS, SHIRLEY L. dosCARVALHO, SABRINA G. de M.MUCCILLO, ELIANA N. dos S.MUCCILLO, REGINALDO2019-11-272019-11-27REIS, SHIRLEY L. dos; CARVALHO, SABRINA G. de M.; MUCCILLO, ELIANA N. dos S.; MUCCILLO, REGINALDO. Sintering under AC electric field of samarium doped ceria. In: BRAZILIAN MRS MEETING, 17th, September 16-20, 2018, Natal, RN. <b>Abstract...</b> São Carlos: Aptor Software, 2018. p. 1064-1064. Disponível em: http://repositorio.ipen.br/handle/123456789/30338.http://repositorio.ipen.br/handle/123456789/30338Samarium doped ceria (SDC) is a high oxygen-ion conductor compound with application in solid oxide fuel cells operating at intermediate temperatures (500-700ºC). Polycrystalline SDC exhibits low sinterability, requiring high temperatures to achieve full densification under conventional sintering. Flash sintering is a recently developed method in which ceramic compacts may be sintered at lower temperatures and shorter times than those under conventional sintering. It consists in applying an electric field to a green compact, either during heating or at a fixed temperature up to the occurrence of an electric current pulse. In this study, samarium doped ceria (Ce0.8Sm0.2O1.9) was sintered by applying AC electric field at a fixed frequency of 1.0 kHz to the specimen during heating (dynamic sintering) or during a fixed temperature (isothermal). The influence of sintering on densification, microstructure and ionic conductivity was investigated. Similar density values were obtained for specimens sintered at 800ºC (dynamic) and 1100ºC (isothermal).1064-1064openAccessResumo de eventos científicos0000-0002-8598-279X0000-0001-9219-388Xhttps://orcid.org/0000-0002-8598-279Xhttps://orcid.org/0000-0001-9219-388X