PINHEIRO, LUCAS B.MARTINELLI, ANTONIO E.FONSECA, FABIO C.2015-05-182015-05-182014PINHEIRO, LUCAS B.; MARTINELLI, ANTONIO E.; FONSECA, FABIO C. Effects of microwave processing on the properties of nickel oxide/zirconia/ceria composites. <b>Advanced Materials Research</b>, v. 975, p. 154-159, 2014. DOI: <a href="https://dx.doi.org/10.4028/www.scientific.net/AMR.975.154">10.4028/www.scientific.net/AMR.975.154</a>. Disponível em: http://repositorio.ipen.br/handle/123456789/23685.1022-6680http://repositorio.ipen.br/handle/123456789/23685The effect of a microwave-assisted hydrothermal (MWH) treatment on the structural, thermal, and electrical properties of NiO/ZrO2:8 mol%Y2O3(YSZ)/CeO2 (60/20/20 wt.%) composite was investigated. Powders were synthesized by a hydroxide coprecipitationimpregnation technique, in which Ni and Ce oxides were coprecipitaed in a suspension containing YSZ. Simultaneous thermogravimetry and differential thermal analysis revealed that MWH treatment promotes the crystallization of coprecipitated phases. X-ray diffraction analysis was used for phase identification and the calculated lattice parameters indicated the formation of YSZ:CeO2 solid solution during sintering. Impedance spectroscopy measurements showed that the electrical properties of the composite samples were not significantly affected by the MHW.154-159openAccesscomposite materialsnickel oxideszirconium oxidescerium oxidesmicrowave radiationthermal analysissynthesiscoprecipitationspectroscopyimpedanceArtigo de periódico97510.4028/www.scientific.net/AMR.975.154https://orcid.org/0000-0003-0708-2021