Search Results - "ARANA VARELA, José"

Synthesis, Characterization and Photophysical Properties of Eu3+ Doped in BaMoO4 by Rosa, Ieda L. V., Marques, Ana Paula A., Tanaka, Marcos T. S., Melo, Dulce M. A., Leite, Edson R., Longo, Elson, Varela, José Arana

“…In this work Ba 0.99 Eu 0.01 MoO 4 (BEMO) powders were prepared by the first time by the Complex Polymerization Method. The structural and optical properties…”
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Grain size effect on the electrical response of SnO2 thin and thick film gas sensors by Savu, Raluca, Ponce, Miguel Adolfo, Joanni, Ednan, Bueno, Paulo Roberto, Castro, Miriam, Cilense, Mario, Varela, José Arana, Longo, Elson

“…Porous nano- and microcrystalline tin oxide films were deposited by RF magnetron sputtering and doctor blade techniques, respectively. Electrical resistance…”
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Foundry sand recycling in the troughs of blast furnaces: a technical note by Andrade, Ricardo Magnani, Cava, Sergio, Silva, Sidiney Nascimento, Soledade, Luiz Edmundo Bastos, Rossi, Claudia C., RobertoLeite, Edson, Paskocimas, Carlos Alberto, Varela, José Arana, Longo, Elson

“…The foundry sand agglomerated with alkaline phenolic resin, used for the manufacture of molds, was found to be a residue which is able to be recycled,…”
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Photoluminescence properties of CaTiO3:Eu3+ nanophosphor obtained by the polymeric precursor method by Mazzo, Tatiana Martelli, Mendonça da Rocha Oliveira, Lucas, Macario, Leilane Roberta, Avansi, Waldir, Silveira André, Rafaela da, Viana Rosa, Ieda Lucia, Varela, José Arana, Longo, Elson

“…Europium-doped calcium titanate nanophosphors were synthesized by the polymeric precursor method (PPM) at different temperatures. X-ray absorption near edge…”
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Influence of the indium concentration on microstructural and electrical properties of proton conducting NiO–BaCe0.9−xInxY0.1O3−δ cermet anodes for IT-SOFC application by Zunic, Milan, Brankovic, Goran, Foschini, Cesar Renato, Cilense, Mario, Longo, Elson, Varela, José Arana

“…► The influence of indium concentration on anode properties was investigated. ► The cermet anode powders were obtained without any undesirable phases. ► Anode…”
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Influence of pH in Obtaining Indium Tin Oxide Nanoparticles by Microwave Assisted Solvothermal Method by Oliveira, Fernando Modesto Borges de, Varela, José Arana, Orlandi, Marcelo Ornaghi

“…A systematic study about synthesis of In1-xSnx O2 (ITO) nanostructured crystals by microwaveassisted solvothermal method is reported. Different solutions using…”
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Very Intense Distinct Blue and Red Photoluminescence Emission in MgTiO3 Thin Films Prepared by the Polymeric Precursor Method: An Experimental and Theoretical Approach by Ferri, Elídia Aparecida Vetter, Mazzo, Tatiana Martelli, Longo, Valeria Moraes, Moraes, Eduardo, Pizani, Paulo Sérgio, Li, Máximo Siu, Espinosa, José Waldo Martínez, Varela, José Arana, Longo, Elson

“…MgTiO3 (MTO) thin films were prepared by the polymeric precursor method with posterior spin-coating deposition. The films were deposited on…”
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Joint Experimental and Theoretical Analysis of Order−Disorder Effects in Cubic BaZrO3 Assembled Nanoparticles under Decaoctahedral Shape by Moreira, Mário Lúcio, Buzolin, Prescila Glaucia Cristianine, Longo, Valeria Moraes, Nicoleti, Nelio Henrique, Sambrano, Julio Ricardo, Li, Maximu S, Varela, José Arana, Longo, Elson

“…Periodic first-principles calculations based on density functional theory at the B3LYP level has been carried out to investigate the photoluminescence (PL)…”
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Shape controlled synthesis of CaMoO4 thin films and their photoluminescence property by DE AZEVEDO MARQUES, Ana Paula, LONGO, Valeria M, DE MELO, Dulce M. A, PIZANI, Paulo S, LEITE, Edson R, ARANA VARELA, José, LONGO, Elson

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Voltage−Composition Profile and Synchrotron X-ray Structural Analysis of Low and High Temperature LixCoO2 Host Material by BUENO, Paulo Roberto, PESQUERO, Naira Canevarolo, FERREIRA, Fabio Furlan, SANTIAGO, Elisabete Inácio, VARELA, José Arana, LONGO, Elson

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Mechanical Properties and Dimensional Effects of ZnO- and SnO2-Based Varistors by Ramírez, Miguel Angel, Rubio-Marcos, Fernando, Fernández, José Francisco, Lengauer, Markus, Bueno, Paulo Roberto, Longo, Elson, Varela, José Arana

“…A comparison between traditional ZnO‐(modified Matsuoka system, [ZnO]) and SnO2‐based varistors (98.9%SnO2+1%CoO+0.05%Nb2O5+0.05%Cr2O3, [SCNCr]) regarding…”
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Energia de superfície para nanossuperfícies de TiO2 na direção (001) by Lazaro, Sergio de, Penteado, Renato Ferras, Tebcherani, Sergio Mazureck, Berger, Danielle, Varela, José Arana, Kubaski, Evaldo Toniolo

“…In this work was made an investigation about bulk and surface models (at maximum 20 layers) of the TiO2 material in the (001) direction. TiO2 commercial sample…”
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Electronic ceramics based on polycrystalline SnO2, TiO2 and (Sn xTi1-x)O2 solid solution by Bueno, Paulo Roberto, Varela, José Arana

“…A brief review is given of the electronic properties arising from polycrystalline semiconductor ceramics of SnO2, TiO2 and (SnxTi1-x)O2 solid solution…”
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Photoluminescence in NaNbO3 particles and films by Teixeira, Guilhermina Ferreira, Wright, Thiago Rago, Manfroi, Daniela Cristina, Longo, Elson, Varela, José Arana, Zaghete, Maria Aparecida

“…In this work, we report the photoluminescence properties of NaNbO3 particles and films. The crystallization of NaNbO3 particles produced Na2Nb2O6.nH2O…”
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Temperature dependence of fractal dimension of grain boundary region in SnO2 based ceramics by Branković, Goran, Branković, Zorica, Leite, Daniela Russo, Varela, José Arana

“…Fractal dimensions of grain boundary region in doped SnO2 ceramics were determined based on previously derived fractal model. This model considers fractal…”
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Synthesis by the polymeric precursor method and characterization of undoped and Sn, Cr and V-doped ZrTiO4 by DE LUCENA, Poty Rodrigues, PESSOA-NETO, Osmundo Dantas, DOS SANTOS, Ieda Maria, GOUVEIA SOUZA, Antonio, LONGO, Elson, ARANA VARELA, José

“…In this work, zirconium titanate doped with 0.1, 0.2, and 0.4 mole% of tin, chromium and vanadium was synthesized by the polymeric precursors method and…”
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Microstructural and nonohmic properties of ZnO.Pr6O11 CoO polycrystalline system by Ramirez, M A, Fernandez, J F, de, Frutos J, Bueno, P R, Longo, E, Varela, J A

“…The microstructure and electrical properties of varistors composed of (95-x)ZnO + xPr6O11 + 5CoO (ZPC), (x = 0.1, 0.5 and 1.0) and sintered at 1300 and 1350 C,…”
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Influence of titanium precursor on photoluminescent emission of micro-cube-shaped CaTiO3 by Mazzo, Tatiana Martelli, do Nascimento Libanori, Gabriela Santilli, Moreira, Mario Lucio, Avansi Jr, Waldir, Mastelaro, Valmor Roberto, Varela, José Arana, Longo, Elson

“…For this research, we studied the influence of titanium tetrachloride (TC) and titanium tetraisopropoxide (TTP) precursors on CaTiO3 (CTO) synthesis by…”
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Growth mechanism of octahedron-like BaMoO 4 microcrystals processed in microwave-hydrothermal: Experimental observations and computational modeling by Cavalcante, Laécio Santos, Sczancoski, Júlio César, Tranquilin, Rircado Luis, Varela, José Arana, Longo, Elson, Orlandi, Marcelo Ornaghi

“…Octahedron-like BaMoO 4 microcrystals were synthesized by the co-precipitation method at room temperature and processed in microwave-hydrothermal at 413 K for…”
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Stability, characterization and functionality of proton conducting NiO–BaCe0.85−xNbxY0.15O3−δ cermet anodes for IT-SOFC application by Žunić, Milan, Branković, Goran, Basoli, Francesco, Cilense, Mario, Longo, Elson, Varela, José Arana

“…•The influence niobium concentration on properties of anode substrates was investigated.•The cermet anode powders were obtained without any undesirable…”
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