Zobrazeno 1 - 10
of 26
pro vyhledávání: '"F. Nakagomi"'
Publikováno v:
Processing and Application of Ceramics, Vol 15, Iss 2, Pp 128-135 (2021)
The microwave assisted combustion synthesis (MACS) as a new, quick and low cost synthesis method was used for preparation of niobium pentoxide (Nb2O5) powders. The present paper investigated the effect of reactant concentrations (ammonium niobium oxa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::29d5e0893abc685a56369f3363b30616
https://doi.org/10.2298/pac2102128l
https://doi.org/10.2298/pac2102128l
Autor:
F. Nakagomi, Ernesto Soares Freitas Neto, Fabrício Vieira de Andrade, Sarah Espinoza Cerruti, Márcio Roberto de Freitas, Guilherme Oliveira Siqueira
Publikováno v:
Chemical Physics Letters. 729:37-41
Microwave Assisted Combustion technique was employed to prepare higly stable niobium pentoxide - Nb2O5 - nanoparticles using ammonium niobium oxalate as precursor, ammonium nitrate as oxidant and urea as fuel. The synthetized sample has showed good r
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::29f9fdd071a478a30c2280825a6f20b6
https://doi.org/10.1016/j.cplett.2019.05.003
https://doi.org/10.1016/j.cplett.2019.05.003
Autor:
Ernesto Soares Freitas Neto, Dagoberto Brandão Santos, Marcio Assolin Correa, Reny Angela Renzetti, F. Nakagomi, Vanda da Piedade Santos, Guilherme Oliveira Siqueira, A.S. Melo
Publikováno v:
Materials Science and Technology. 35:552-559
The present work investigates the effect of the initial microstructure on phase transformation after intercritical annealing by measuring the amount of austenite, which was obtained by X-ray diffra...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b187d5e0baf3bbbcce904c25b85cd582
https://doi.org/10.1080/02670836.2019.1572318
https://doi.org/10.1080/02670836.2019.1572318
Autor:
S.W. da Silva, Adolfo Franco, Vijayendra K. Garg, F.C. e Silva, F. Nakagomi, P.E.N. de Souza, T.J. Castro, P.C. Morais, Aderbal C. Oliveira
Publikováno v:
Journal of Alloys and Compounds. 842:155751
– In this study, it was successfully explored the use of resonant X-ray diffraction, with energies tuned to the absorption edges of Zn2+, Fe3+ and Co2+, as an innovative approach to obtain the structural properties of the as-synthesized ZnxCo1-xFe2
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cf3a74460226507136e3922b85b6ce91
https://doi.org/10.1016/j.jallcom.2020.155751
https://doi.org/10.1016/j.jallcom.2020.155751
Autor:
F. Nakagomi, Natalia da Silva Moura, T.J. Castro, Paulo C. Morais, S.W. da Silva, Adolfo Franco
Publikováno v:
Journal of Magnetism and Magnetic Materials. 389:27-33
Nanocomposites with chemical composition (CoFe2O4)x+(ZnO)1–x were prepared by the combustion reaction method. X-ray diffraction data reveal the presence of only two crystalline nanosized phases with average diameters of ~55 nm (ZnO) and ~60 nm (CoF
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d78eeb6c5f182e0dd950a398c4657e7b
https://doi.org/10.1016/j.jmmm.2015.04.036
https://doi.org/10.1016/j.jmmm.2015.04.036
Akademický článek
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Publikováno v:
Proceedings of the International Symposium on Crystallography.
Zinc Oxide (ZnO) has received a great deal of attention due the wide range of its technological applications, including transparent conducting electrodes for solar cells, transparent ultraviolet protection films, low-voltage and short-wavelength elec
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::09bb749f13ad3063ddd04a540ef662c7
https://doi.org/10.5151/phypro-sic100-072
https://doi.org/10.5151/phypro-sic100-072
Publikováno v:
Applied Surface Science. 261:727-729
In this work the results of Linear Raman Spectroscopy experiments on hafnium dioxide (HfO2) thin films deposited by magnetron sputtering using different deposition conditions and post-deposition annealing are reported. Raman bands were identified con
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8f6049709121aa547050db4bbb8434fa
https://doi.org/10.1016/j.apsusc.2012.08.088
https://doi.org/10.1016/j.apsusc.2012.08.088
Autor:
T.J. Castro, J. Mantilla, Pedro Augusto Matos Rodrigues, F. Nakagomi, Jose A. H. Coaquira, S.W. da Silva, Paulo C. Morais, H.V.S. Pessoni, Aderbal C. Oliveira, A. Franco Júnior
Publikováno v:
Journal of Applied Physics. 121:013904
In this study, we report on the optical and magnetic properties of Co-doped ZnO nanoparticles with increasing Co-content (CoxZn1−xO; x = 0.000, 0.005, 0.010, 0.030, 0.050, 0.070, and 0.100) synthesized by the combustion reaction method. The X-ray d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0c01fe3b1f355da039fe9dec8ca184e4
https://doi.org/10.1063/1.4973526
https://doi.org/10.1063/1.4973526
Publikováno v:
MRS Proceedings. 1528
Grazing Incidence Small-Angle X-ray Scattering (GISAXS) is a versatile technique for the analysis of nano and micro thin films surfaces. The scattering data depend strongly on the form and distribution of the scattering objects. In the present work G
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::85d1f2be68e30ac77f726ebfed968a1b
https://doi.org/10.1557/opl.2013.425
https://doi.org/10.1557/opl.2013.425