DEMAT - Departamento de Engenharia de Materiais
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Article In2O3 microcrystals obtained from rapid calcination in domestic microwave oven(Elsevier, 2010) Motta, Fabiana Villela da; Lima, Renata C.; Marques, Ana Paula de Azevedo; Leite, Edson Roberto; Varela, José A.; Silva, Elson Longo daArticle Indium hydroxide nanocubes and microcubes obtained by microwave-assisted hydrothermal method(Elsevier, 2010) Motta, Fabiana Villela da; Lima, R. C.; Marques, Ana Paula de Azevedo; Li, Maximo Siu; Leite, Edson Roberto; Varela, José A.; Silva, Elson Longo daArticle Síntese e caracterização de ferrita de níquel e níquel-zinco pelo método de polimerização de complexos(69° Congresso Anual da ABM - Internacional, 2014) Nascimento, Rubens Maribondo do; Assis, Raimison Bezerra de; Valcacer, Samara Melo; Silva, Camila Cruz da; Silva, Ariadne de Souza; Delmonte, Maurício Roberto Bomio; Paskocimas, Carlos Alberto; Gomes, Uílame Umbelino; Motta, Fabiana Villela daNickel-zinc ferrites are ferrimagnetic ceramic materials with cubic spinel type crystal structure, space group Fd3m belonging to being a solid solution composition of NiO, ZnO and Fe2O3. The complex polymerization method has enormous potential for obtaining magnetic ceramics, because it is a simple process, that originates from materials with high purity, which leads to obtaining powders with high chemical homogeneity and high surface area. This work aims to evaluate the structural and morphological characteristics of ferrites Ni0,25Zn0,75Fe2O4 and NiFe2O4 obtained by polymerization complex method. The solution was subjected to a final temperature of 120°C until the formation of the resin pyrolysed at a temperature of 350°C for 2 hours and calcined at 500°C for 2 hours. The resulting powders were characterized by X-ray diffraction (XRD), thermal analysis (TG/ DSC) and scanning electron microscopy (SEM). The results of XRD showed the formation of two compositions majority of ferrite phase. The results of SEM micrographs showed the formation of agglomerated particles with longitudinal plates to both compositions being important microstructural characteristics for magnetic application. The method of polymerization of complexes appeared as a promising method to obtain ceramic powders of nickel ferrite and nickel-zinc alloy for magnetic application.Article Room temperature photoluminescence of BCT prepared by Complex Polymerization Method(Elsevier, 2010) Motta, Fabiana Villela da; Marques, Ana Paula de Azevedo; Espinosa, José Waldo Martínez; Pizani, Paulo Sérgio; Silva, Elson Longo da; Varela, José A.Article BaMoO4:Tb3+ phosphor properties: synthesis, characterization and photophysical studies(Elsevier, 2011) Marques, Ana Paula de Azevedo; Motta, Fabiana Villela da; Cruz, Mariana A.; Varela, José A.; Longo, Elson; Rosa, Ieda Lúcia VianaArticle Urea-based synthesis of zinc oxide nanostructures at low temperature(Journal of Nanomaterials, 2013) Marinho, Juliane Zacour; Romeiro, Fernanda da Costa; Lemos, Samantha Custódio Silva; Motta, Fabiana Villela da; Riccardi, C. S.; Li, Maximo Siu; Longo, Elson Longo da; Lima, Renata Cristina deArticle Citrate–hydrothermal synthesis, structure and electrochemical performance of La0.6Sr0.4Co0.2Fe0.8O3−δ cathodes for IT-SOFCs(Elsevier, 2013) Garcia, Laurênia Martins Pereira; Macedo, Daniel Araújo de; Souza, Graziele L.; Motta, Fabiana Villela da; Paskocimas, Carlos Alberto; Nascimento, Rubens Maribondo doArticle Effect of process parameters on photophysical properties and barium molybdate phosphors characteristics(Elsevier, 2014) Abreu, Maria Fernanda C.; Motta, Fabiana Villela da; Lima, Renata Cibely Freire de; Li, Maximo S.; Longo, Elson; Marques, Ana Paula de A.Article Tribological behaviour of glass-ceramics reinforced by Yttria Stabilized Zirconia(Elsevier, 2016) Santos, Rafaela Luiz Pereira; Buciumeanu, Mihaela; Silva, Filipe Samuel; Souza, Júlio César Matias de; Nascimento, Rubens Maribondo do; Motta, Fabiana Villela da; Carvalho, Oscar; Henriques, BrunoArticle On the mechanical properties and microstructure of zirconia-reinforced feldspar-based porcelain(Elsevier, 2016-09) Nascimento, Rubens Maribondo do; Santos, Rafaela Luiz Pereira; Silva, Filipe Samuel; Motta, Fabiana Villela da; Henriques, Bruno; Souza, Júlio César Matias de