Search Results - "Valladares, L. de los Santos"

Microstructure and Tensile Properties of Fine-Grained Bulk Copper Fabricated by Thermomechanical Consolidation of Copper Nanopowder/Micron-Sized Powder Blend by Bhatta, Gyanendra, Valladares, L De Los Santos, Domínguez, A Bustamante, Moreno, N O, Barnes, CHW, Chen, Wen, Zhang, Deliang

“…Samples of fine structured Cu were fabricated by spark plasma sintering (SPS) of compacts of Cu nanopowder/micron-sized powder blend with a ratio of 3:7 by…”
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Crystallization and electrical resistivity of Cu2O and CuO obtained by thermal oxidation of Cu thin films on SiO2/Si substrates by De Los Santos Valladares, L., Salinas, D. Hurtado, Dominguez, A. Bustamante, Najarro, D. Acosta, Khondaker, S.I., Mitrelias, T., Barnes, C.H.W., Aguiar, J. Albino, Majima, Y.

“…In this work, we study the crystallization and electrical resistivity of the formed oxides in a Cu/SiO2/Si thin film after thermal oxidation by ex-situ…”
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YBa2Cu3O7 films grown onto SrTiO3 and YSZ substrates by chemical solution deposition of trifluoroacetates by Domínguez, A. Bustamante, De Los Santos Valladares, L., Cornejo, H. Sanchez, Osorio-Anaya, A. M., Santibañez, J. Flores, Sovero, L. Sanchez, Barnes, C. H. W.

“…We report the preparation and characterization of YBa 2 Cu 3 O 7 (YBCO) films grown onto SrTiO 3 and YSZ substrates by the trifluoroacetates chemical solution…”
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Magnetic, structural and Mössbauer study of soils from an ancient mining area in Huancavelica-Peru by Corzo, M. A. Castillo, Borja-Castro, L. E., Valladares, L. De Los Santos, González, J. C., Medina, J. Medina, Quinde, A. Trujillo, Barnes, C. H. W., Rodriguez, V. A. Peña

“…We present the magnetic, structural and 57 Fe Mossbauer characterization of soils collected from an ancient mercury contaminated city named Huancavelica in…”
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Structural and hyperfine magnetic properties of primary steelmaking slag by Valerio-Cuadros, Marlon I., Dominguez, A. G. Bustamante, Valencia-Bedregal, R. A., Borja-Castro, L. E., Suarez, S. M. Espinoza, Cabrera-Tinoco, H. A., Barnes, C. H. W., Valladares, L. De Los Santos

“…Nowadays there is a high interest in the recovery of industrial steel waste into useful by-products. For that purpose, it is important to know the physical and…”
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Characterization and magnetic properties of hollow α-Fe2O3 microspheres obtained by sol gel and spray roasting methods by De Los Santos Valladares, L., Bustamante Domínguez, A., León Félix, L., Kargin, J.B., Mukhambetov, D.G., Kozlovskiy, A.L., Moreno, N.O., Flores Santibañez, J., Castellanos Cabrera, R., Barnes, C.H.W.

“…In this work, we characterize the hollow hematite (α-Fe2O3) micro spheres obtained by two non-template techniques: i) sol gel and ii) spray roasting process…”
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Mössbauer study of intermediate superparamagnetic relaxation of maghemite (γ-Fe2O3) nanoparticles by Ramos Guivar, J. A., Bustamante, A., Flores, J., Mejía Santillan, M., Osorio, A. M., Martínez, A. I., De Los Santos Valladares, L., Barnes, C. H. W.

“…In the present work, we have synthesized and characterized magnetic nanoparticles of maghemite γ-Fe 2 O 3 to study their structural and magnetic properties…”
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Particle size effect on graphene nanoribbons with iron oxide nanoparticles by Rodríguez, B.A.G., Pérez, M., Alvarado, J., Cerecedo-Núñez, H.H., De Los Santos Valladares, L., Albino Aguiar, J.

“…[Display omitted] •Nanocomposites based on graphene nanoribbons and iron oxide nanoparticles were synthesized by varying the particle size.•Properties such as…”
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Magnetocaloric and magnetic properties of SmFe0.5Mn0.5O3 complex perovskite by Silva-Santana, M.C., daSilva, C.A., Barrozo, P., Plaza, E.J.R., de los Santos Valladares, L., Moreno, N.O.

“…In this paper, we have investigated the physical properties of SmFe0.5Mn0.5O3 complex perovskite samples, synthesized by means of combustion reaction method…”
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Structural and magnetic properties of core-shell Au/Fe 3 O 4 nanoparticles by León Félix, L, Coaquira, J A H, Martínez, M A R, Goya, G F, Mantilla, J, Sousa, M H, Valladares, L de Los Santos, Barnes, C H W, Morais, P C

“…We present a systematic study of core-shell Au/Fe O nanoparticles produced by thermal decomposition under mild conditions. The morphology and crystal structure…”
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Structural and magnetic properties of core-shell Au/Fe3O4 nanoparticles by León Félix, L., Coaquira, J. A. H., Martínez, M. A. R., Goya, G. F., Mantilla, J., Sousa, M. H., Valladares, L. de los Santos, Barnes, C. H. W., Morais, P. C.

“…We present a systematic study of core-shell Au/Fe 3 O 4 nanoparticles produced by thermal decomposition under mild conditions. The morphology and crystal…”
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Manometric Determination of the Oxygen Diffusion Coefficients in YBa2Cu3−yFeyO6+x by Kargin, J., Cornejo, H. E. Sanchez, Zhangozin, K., Zhanabergenov, T., Kassymkhanov, Zh, Seo, Jiwon, Holmes, S. N., Barnes, C. H. W., Aguiar, J. Albino, De Los Santos Valladares, L.

“…Thermodynamic parameters, such as the activation energy ( E a ) and the diffusion coefficient ( D 0 ), of weakly bounded oxygen in Fe-doped YBa 2 Cu 3 O 6+ x…”
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Characterization of iron oxide waste scales obtained by rolling mill steel industry by Kargin, J., Valladares, L. De Los Santos, Borja-Castro, L. E., Xize, Jiang, Mukhambetov, D. G., Konyukhov, Y. V., Moreno, N. O., Dominguez, A. G. Bustamante, Barnes, C. H. W.

“…Every year, the steelmaking industry produces millions of tons of slags resulting in pollution to the environment. Among the waste, secondary metals and scales…”
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Texture and magnetic anisotropy of YBa2Cu3O7-x film on MgO substrate by Cornejo, H. Sanchez, De Los Santos Valladares, L., Barnes, C. H. W., Moreno, N. O., Domínguez, A. Bustamante

“…The texture and magnetic anisotropy of a YBa 2 Cu 3 O 7-x (YBCO) film growth onto a MgO substrate are analyzed in order to understand the relation between…”
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Characterization and Mössbauer spectroscopy of steel slag generated in the ladle furnance in SIDERPERU steel plant by Dominguez, A. G. Bustamante, Valerio-Cuadros, M. I., Borja-Castro, L. E., Valencia-Bedregal, R. A., Santibañez, J. Flores, Suarez, S. M. Espinoza, Cabrera-Tinoco, H., Moreno, N.O, Barnes, C. H. W., Valladares, L. De Los Santos

“…The steel industry produces large amounts of slag coming from different stages during the steelmaking process every year. Currently, there are numerous…”
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Influence of Space Charge During the Oxidation of Metal Surfaces by Mukhambetov, D. G., De Los Santos Valladares, L., Kargin, J. B., Kozlovskiy, A. L.

“…In this work we present a model for the surface oxide film growth considering the influence of space charge. The space charge field E sp is assumed…”
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Characterization of black slags obtained during smelting in the electric arc furnace from SIDERPERU following reduction by Cabrera-Tinoco, H. A., Valencia-Bedregal, R. A., Borja-Castro, L. E., Valerio-Cuadros, M. I., Dominguez, A. G. Bustamante, Zhao, Xiaoli, Zhang, Youyun, Zheng, Chengmu, Moreno, N. O., Zhang, Deliang, Barnes, C. H. W., Valladares, L. De Los Santos

“…The primary process in an electrical arc furnace (EAF) during industrial steelmaking results in tons of black slags which cause pollution to the environment…”
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Characterization of Spanish River Carbonatite (SRC) for agricultural fertilizer by Valladares, L. De Los Santos, Kooyip, J. H. Jhoncon, Borja-Castro, L. E., Valerio-Cuadros, M. I., Valencia-Bedregal, R. A., Velazquez-Garcia, J. J., Aguilar, C. Villanueva, Barnes, C. H. W., Dominguez, A. G. Bustamante

“…Carbonatite is an igneous rock that is composed mainly of carbonate minerals and silicates. It is recently applied as fertilizer due to its high content of…”
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Carbothermal reduction of mill scales formed on steel billets during continuous casting by Suarez, S. M. Espinoza, Borja-Castro, L. E., Valerio-Cuadros, M. I., Domínguez, A. Bustamante, Cabrera-Tinoco, H. A., Huaman, E., Valencia-Bedregal, R. A., Zhao, Xiaoli, Zhang, Youyun, Zhang, Deliang, Barnes, C. H. W., Valladares, L. De Los Santos

“…A billet is a bar made from crude steel which surface contains scales which are rich in iron oxides. This study presents the carbothermal reduction of the…”
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Characterization of steel billet scales generated during the continuous casting process in SIDERPERU steel plant by Borja-Castro, L. E., Bustamante Dominguez, A., Valerio-Cuadros, M. I., Valencia-Bedregal, R. A., Cabrera-Tinoco, H. A., Espinoza Suarez, S. M., Kargin, J., Moreno, N. O., Barnes, C. H. W., Valladares, L. De Los Santos

“…Tons of waste is produced during iron steel’s industrial production, creating environmental pollution. This work aims to characterize the steel scale formed on…”
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