Writers: João B. Florindo, Mariana S. Sikora, Ernesto C. Pereira, Odemir M. Bruno Keywords: FEG images; Nanoscale materials; Pattern recognition; Fractal dimension; Fractal descriptors; Image analysis Abstract: This work presents a methodology to the morphology analysis and characterization […]
Writers: R. Pereira, L.F. Marchesi, R.G. Freitas, R. Matos, E.C. Pereira Keywords: Platinum electrodes; Solegel route; Low cost deposition; Glass substrate Abstract: The preparation and characterization of platinum electrodes on glass substrates obtained by the Pechini method for […]
Writers: Bruno Vidal de Almeida; Sidiney Nascimento Silva; José Milton G. Lopes; Ricardo Leite Passos; Elson Longo; Fernando Vernilli Keywords: Convective heating; Runners; Blast Furnace Abstract: This paper describes the main characteristics and advantages of […]
Writers: P Schio; F J Bonilla; Y Zheng; D Demaille; J Milano; A J A de Oliveira; and F Vidal Abstract: The magnetic relaxation of Co nanowires assemblies embedded in CeO2/SrTiO3(001) epilayers has been investigated […]
Writers: E. Granado, J. W. Lynn, R. F. Jardim and M. S. Torikachvili Keywords: Magnetic Correlations Abstract: Neutron diffraction on the double perovskite Sr2 YRuO6 with a quasi-fcc lattice of Ru moments reveals planar magnetic correlations […]
Writers: A.L. Horovistiz, R.A. Rocha, E.N.S. Muccillo Keywords:Powders; chemical preparation; Ionic conductivity; CeO2; Fuel cells Abstract: The effects of small amounts of bismuth and sodium on the electrical conductivity of gadolinia-doped ceria are investigated. Bulk specimens of […]
Writers: C. S. Martin, M. F. S. Teixeira Keywords: Oxo–manganese complex; Electrochemical behavior; Enzymatic biomimicking; Electrocatalysis; Dopamine Abstract: This work describes the characterization of the [Mn2IV,IVO2(terpy)2(H2O)2]4+ complex in aqueous solution by UV–vis spectrophotometry, cyclic voltammetry, and linear sweep voltammetry with a rotating disk electrode. The pH effect, potential […]
Writers: F. Moura; A.Z.Simões; R.C.Deus; M.R.Silva; J.A.Varela; E.Longo Keywords: A. Ceramics; B. Chemical syntheses; B. Powder metallurgy; C. X-ray diffraction Abstract: A study was undertaken about the structural and photoluminescent properties at room temperature of […]
Writers: Carolina Hernandes Marques; Alexandre Mesquita; Vinicius Dantas Araújo; Maria Inês Basso Bernardi Keywords: Al2O3:CuO; pigments; polymeric precursor method Abstract: Copper (II) aluminate, CuAl2O4, which is known to be an inverse spinel contains a d9 […]
Writers: D.M.G. Leite; A.L.J. Pereira; W.A. Iwamoto; P.G. Pagliuso; P.N. Lisboa-Filho; J.H.D. da Silva Keywords: Sputtering; GaMnN; Nanocrystalline material; Diluted magnetic semiconductor; Magnetic properties Abstract: The magnetic characteristics of Ga1−xMnxN nanocrystalline films (x = 0.08 and x = 0.18), […]
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