Search Results - "Kiminami, RHGA"

Effect of atmosphere on the formation of perovskite phase in 0.90Pb(Zn^sub 1/3^Nb^sub 2/3^)O^sub 3^-0.10PbTiO^sub 3^ (PZN-10PT) powders by Raigoza, CFV, Kiminami, RHGA, Eiras, JA, Garcia, D

“…Lead zinc niobate (PZN) and lead titanate (PT) solid solutions close to the morphotropic phase boundary (MPB) exhibit unusually large dielectric and…”
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Low temperature synthesis of high purity nanoscaled BiFeO3 by a fast polymer solution method and their ferromagnetic behavior by Perdomo, C.P.F., Suarez, A.V., Gunnewiek, R.F.K., Kiminami, R.H.G.A.

“…The main obstacle in synthesizing bismuth ferrite is the presence of secondary phases. This paper presents the results of the effect of an unusual chelating…”
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Structural and dielectric properties of multiferroic (1-x)(0.675PMN-0.325PT)/(x)CoFe sub(2)O sub( 4) particulate composites obtained by microwave sintering by Fernandez, C P, Kiminami, RHGA, Garcia, D

“…This paper discusses the effect of microwave-assisted sintering on the microstructural and physical characteristics of (1-x)Pb(Mg sub(1/3)Nb sub(2/3))…”
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Microwave sintering of alumina–zirconia nanocomposites by Menezes, R.R., Kiminami, R.H.G.A.

“…This work involved an investigation of microwave hybrid fast firing of alumina–zirconia nanocomposites aimed at suppressing grain growth, using commercial…”
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Synthesis, microstructure and magnetic properties of Ni–Zn ferrites by Costa, A.C.F.M., Tortella, E., Morelli, M.R., Kiminami, R.H.G.A.

“…Ni–Zn ferrite powders with a nominal composition of Ni 0.5Zn 0.5Fe 2O 4 were prepared by combustion synthesis, using urea as fuel. The large quantity of gas…”
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Magnetic and structural properties of NiFe2O4 ferrite nanopowder doped with Zn by Costa, ACFM, Silva, V J, Cornejo, D R, Morelli, M R, Kiminami, RHGA, Gama, L

“…This work involved an investigation to ascertain how the substitution of nickel ions for zinc ions affects the structural, morphological and magnetic…”
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ZnAl2O4 co-doped with Yb3+/Er3+ prepared by combustion reaction: evaluation of photophysical properties by Costa, A. C. F. M., Kiminami, R. H. G. A., Santos, P. T. A., Silva, J. F.

“…Zinc aluminate co-doped with Yb 3+ /Er 3+ for potential application in upconversion lasers was prepared in proportions of 2:1, 5:1, and 10:1 by combustion…”
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Effect of Y2O3 additive on conventional and microwave sintering of mullite by Souto, P.M., Menezes, R.R., Kiminami, R.H.G.A.

“…Mullite has become a strong candidate material for advanced structural and functional ceramics. Much interest has recently focused on sintering aids for…”
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Effect of urea and glycine fuels on the combustion reaction synthesis of Mn–Zn ferrites: Evaluation of morphology and magnetic properties by Costa, A.C.F.M., Silva, V.J., Xin, C.C., Vieira, D.A., Cornejo, D.R., Kiminami, R.H.G.A.

“…The goal of this study is to evaluate the influence of the urea and glycine fuels on the synthesis of Mn–Zn ferrite by combustion reaction. The morphology and…”
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Brown pigment of the nanopowder spinel ferrite prepared by combustion reaction by Costa, A.C.F.M., Leite, A.M.D., Ferreira, H.S., Kiminami, R.H.G.A., Cava, S., Gama, L.

“…The purpose of the present work was to prepare nanometric brown pigments spinel (Zn 1− x Ni x )Fe 2O 4 (with x = 0, 0.5 and 1 mol of the Ni 2+) structures by…”
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Sintering of commercial mulite powder: Effect of MgO dopant by Souto, P.M., Menezes, R.R., Kiminami, R.H.G.A.

“…MgO is one of the sintering aids most commonly used in the processing of mullite bodies. However, few studies have investigated the influence of MgO on the…”
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Photophysical properties of Eu3+ and Tb3+-doped ZnAl2O4 phosphors obtained by combustion reaction by BARROS, B. S, MELO, P. S, KIMINAMI, R. H. G. A, COSTA, A. C. F. M, DE SA, G. F, ALVES, S

“…Europium- and terbium-doped zinc aluminate oxide nanocrystals with a spinel structure were successfully prepared by a combustion method, using urea as fuel…”
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Ni–Zn–Sm nanopowder ferrites: Morphological aspects and magnetic properties by Costa, A.C.F.M., Diniz, A.P.A., de Melo, A.G.B., Kiminami, R.H.G.A., Cornejo, D.R., Costa, A.A., Gama, L.

“…Ni–Zn ferrites have been widely used in components for high-frequency range applications due to their high electrical resistivity, mechanical strength and…”
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X-Ray diffraction and mössbauer spectra of nickel ferrite prepared by combustion reaction by RAMALHO, M. A. F, GAMA, L, ANTONIO, S. G, PAIVA-SANTOS, C. O, MIOLA, E. J, KIMINAMI, R. H. G. A, COSTA, A. C. F. M

“…Nickel ferrite powders with a nominal NiFe2O4 composition were synthesized by combustion reaction using urea as fuel. The powder was obtained using a vitreous…”
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Magnetic and structural properties of nanosize Ni–Zn–Cr ferrite particles synthesized by combustion reaction by Gama, L., Hernandez, E.P., Cornejo, D.R., Costa, A.A., Rezende, S.M., Kiminami, R.H.G.A., Costa, A.C.F.M.

“…This paper reports on Cr 3+-doped and undoped Ni–Zn nanosize ferrite obtained by reaction combustion synthesis. The powders resulting from this synthesis were…”
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Preparation of nanostructured NiFe2O4 catalysts by combustion reaction by COSTA, A. C. F. M, LULA, R. T, KIMINAMI, R. H. G. A, GAMA, L. F. V, DE JESUS, A. A, ANDRADE, H. M. C

“…Nanosize nickel ferrite powders (NiFe2O4) have been prepared by combustion reaction using nitrates and urea as fuel. The resulting powders were characterized…”
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Microstructure and magnetic properties of Ni1-xZnxFe2O4 synthesized by combustion reaction by COSTA, Ana Cristina F. M, MORELLI, Marcio R, KIMINAMI, Ruth H. G. A

“…An investigation was made of samples having a chemical formula of Ni1-xZnxFe2O4, where x = 0.,0.5 and 0.7. The samples were prepared by the reaction combustion…”
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Microwave sintering of cordierite precursor green bodies prepared by starch consolidation by Sandoval, M.L., Talou, M.H., de Souto, P.M., Kiminami, R.H.G.A., Camerucci, M.A.

“…This paper reports on a study of the microwave sintering behavior of green disks prepared by the starch consolidation forming method to produce…”
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Use of Ni-Zn ferrites doped with Cu as catalyst in the transesterification of soybean oil to methyl esters by Dantas, J, Santos, JRD, Cunha, RBL, Kiminami, RHGA, Costa, ACFM

“…The purpose of this work is to evaluate the performance of Ni sub(0.5)Zn sub(0.5)Fe sub(2)O sub(4) ferrite doped with 0.1 and 0.4 mol of Cu as a catalyst for…”
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Effect of heating conditions during combustion synthesis on the characteristics of Ni0.5Zn0.5Fe2O4 nanopowders by Costa, A. C. F. M, Tortella, E, Morelli, M. R, Kaufman, M, Kiminami, R. H. G. A

“…Ni-Zn ferrite powders were synthesized by combustion reaction. The effect of external conditions of heating on the characteristics of the resulting powders was…”
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