ANTONIO EDUARDO MARTINELLI
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Artigo IPEN-doc 20724 Effects of microwave processing on the properties of nickel oxide/zirconia/ceria composites2014 - PINHEIRO, LUCAS B.; MARTINELLI, ANTONIO E.; FONSECA, FABIO C.The 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.Resumo IPEN-doc 19855 The effects of microwave-assisted hydrothermal treatment on NiO-YSZ-CeOsub(2) composite2013 - PINHEIRO, L.B.; MARTINELLI, A.E.; FONSECA, F.C.Resumo IPEN-doc 19784 Effect of microwave processing on the properties of nickel oxide/zirconia/ceria composites2013 - PINHEIRO, L.B.; MARTINELLI, A.E.; FONSECA, F.C.