Writers: R.S. Andréa, S.M. Zanetti, J.A. Varela, E. Longo Keywords: CaZrO3; Calcium zirconate; Chemical method; Humidity sensor Abstract: CaZrO3 stoichiometric and non-stoichiometric (CaO- and ZrO2-excess) powders were synthesized by a chemical method which is based on polymeric precursors. The mesoporous material […]
Writers: E. Govea-Alcaidea, J.E. Pérez-Fernándeza, I.F. Machadob, R.F. Jardimc, Keywords: Bi-based superconductor; Granular material; Spark-plasma sintering; Finite element method; Transport properties Abstract: Pre-reacted powders of (Bi–Pb)2Sr2Ca2Cu3O10+δ (Bi-2223) were consolidated by using the spark plasma sintering (SPS) technique […]
Writers: Pedro Paulo Silva Ortega , Miguel Angel Ramirez , César Renato Foschini , Filiberto González Garcia , Mario Cilense, Alexandre Zirpoli Simões Keywords: yttrium iron garnet; powder; chemical synthesis; characterization; magnetic properties Abstract: A study was […]
Writers: E. Z. Santos, R. Muccillo Keywords: Zirconia-scandia; Impedance spectroscopy Abstract: Zirconia stabilized with 8-12 mol% scandia shows the highest value of oxide ion conductivity among zirconia-based oxides. However, the cubic-rhombohedral phase transition at approximately 600 […]
Writers: Ana Catarina de Oliveira Gomes, Beatriz Uieda, Andre Akio Tamashiro, Adhemar Collà Ruvolo Filho, Luiz Antonio Pessan Palavras-chave: Membrana polimérica, nanocompósito polimérico, célula a combustível, eletrólito polimérico Resumo: Células a combustível usando membranas poliméricas condutoras […]
Writers: Gomes, Ana C. O.; Machado, Isabela M. M.; Ruvolo Filho, Adhemar; Pessan, Luiz A.; Paranhos, Caio M. Keywords: Membrana polimérica; Nanocompósito polimérico; Célula a combustível; Eletrólito polimérico Abstract: Membranas poliméricas condutoras de íons têm sido cada […]
Writers: S. Thirumalairajan, Valmor R. Mastelaro, Carlos A. Escanhoela, Jr. Keywords: CuAlO2; hexagonal; flowers, morphology; nanoparticles; ozone gas Abstract: A morphology-dependent nanomaterial for energy and environment applications is one of the key challenges for materials science and […]
Writers: F. Willian de S. Lucas, Alan R.F. Lima, Lucia H. Mascaro Keywords: Solar cell chalcopyrite; CIGSe; semiconductor electrodeposition Abstract: The codeposition of Cu, In, Ga and Se from pH 1.5 at Na2SO4/H2SO4 solution onto fluorine doped tin […]
Writers: Henry Roncancio, André C. Hernandes, Marcelo Becker Abstract: training; pipelines; accuracy Abstract: This paper presents an exploration of the ceiling analysis of machine learning systems. It also provides an approach to the development of pedestrian […]
Writers: Márcio A. P. Almeida, J. R. O. Lima, C. Morila-Santos, Paulo N. Lisboa Filho, M. Siu Li, Elson Longo, Laécio S. Cavalcante Keywords: CaWO4; Microcrystal; Zinc; Distortions; Photoluminescence Abstract: The effect of zinc ions (Zn2+) on the structure, morphology and optical properties of (Ca1-xZnx)WO4 microcrystals with […]
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