Search Results - "da Jornada, João A. H."

Study of Nanocrystalline γ-Al2O3 Produced by High-Pressure Compaction by Costa, Tania M. H, Gallas, Márcia R, Benvenutti, Edilson V, da Jornada, João A. H

“…Using a high-pressure (HP) technique, samples of γ-Al2O3 were obtained by compaction at 4.5 GPa, in a toroidal-type apparatus, at room temperature (RT) and at…”
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Study of the TiO2−H2O−B2O3 Ternary System at 7.7 GPa and High Temperatures by Conceição, Rommulo V, Soares, Sérgio R. S, Balzaretti, Naira M, Pereira, Altair S, Costa, Tania M. H, Gallas, Márcia R, da Jornada, João A. H

“…The TiO2−H2O−B2O3 ternary system was studied at high pressure (7.7 GPa) and high temperatures, and a phase diagram is proposed. Depending on the initial…”
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Carbon nanostructures produced by pyrolysis under high pressure inside a nanosize silica matrix by Villanueva, Antonio E. L., Balzaretti, Naira M., da Jornada, Joao A. H.

“…In this work, the pyrolysis under high pressure of hydrocarbons dispersed inside a nanosized silica matrix (Aerosil) was investigated. The samples consisted of…”
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Ball milling-induced pyrochlore-to-tungsten bronze phase transition in RbNbWO6 by Zorzi, Janete E., de Amorim, Cintia L.G., Milani, Raquel, Figueroa, Carlos A., da Jornada, J.A.H., Perottoni, Claudio A.

“…A set of Bragg peaks consistent with a hexagonal Bravais lattice was observed in the x-ray powder diffraction pattern of cubic pyrochlore rubidium…”
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Characterization of the Cotunnite-Type Phases of Zirconia and Hafnia by Neutron Diffraction and Raman Spectroscopy by Haines, Julian, Léger, Jean Michel, Hull, Steve, Petitet, Jean Pierre, Pereira, Altair S., Perottoni, Claudio A., da Jornada, Joäo A. H.

“…The crystal structures of the cotunnite‐type phases (space group, Pnam, Z= 4) of pure zirconia and hafnia prepared under high‐temperature, high‐pressure…”
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Study of the TiO 2 −H 2 O−B 2 O 3 Ternary System at 7.7 GPa and High Temperatures by Conceição, Rommulo V., Soares, Sérgio R. S., Balzaretti, Naira M., Pereira, Altair S., Costa, Tania M. H., Gallas, Márcia R., da Jornada, João A. H.

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Study of Nanocrystalline γ-Al 2 O 3 Produced by High-Pressure Compaction by Costa, Tania M. H., Gallas, Márcia R., Benvenutti, Edilson V., da Jornada, João A. H.

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Ball milling-induced pyrochlore-to-tungsten bronze phase transition in RbNbWO(6) by Zorzi, Janete E, De Amorim, Cintia L G, Milani, Raquel, Figueroa, Carlos A, Da Jornada, Joao A H, Perottoni, Claudio A

“…A set of Bragg peaks consistent with a hexagonal Bravais lattice was observed in the x-ray powder diffraction pattern of cubic pyrochlore rubidium…”
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Tunable Linear Thermal Expansion Coefficient of Amorphous Zirconium Tungstate by Catafesta, Jadna, Zorzi, Janete E., Perottoni, Cláudio A., Gallas, Márcia R., Da Jornada, João Alziro H.

“…Zirconium tungstate (α‐ZrW2O8) exhibits isotropic negative thermal expansion over a wide range of temperatures. Under high pressure it transforms to a…”
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Fluorescent compacts prepared by the entrapment of benzoxazole type dyes into a silica matrix at high pressure by Costa, Tania M.H, Stefani, Valter, Gallas, Márcia R, Balzaretti, Naira M, da Jornada, João A.H

“…We have produced silica-gel compacts doped with 2,5-Bis(benzoxazol-2 ′-yl)-4-methoxyphenol dye using high-pressure processing of powders synthesized by the…”
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Dynamic-Mechanical Properties of Ethylene/α-Olefin Copolymers Prepared by a Metallocene Catalyst by Simanke, Adriane G., Galland, Griselda B., Freitas, Liane L., da Jornada, João Alziro H., Quijada, Raul, Mauler, Raquel S.

“…The influence of comonomer content and type on the dynamic‐mechanical behavior of some ethylene/α‐olefin (1‐hexene, 1‐octene, 1‐decene, 1‐octadecene and…”
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