Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Valdecir Biondo"'
Autor:
Antônio Oliveira de Souza, Valdecir Biondo, Flávio Francisco Ivashita, Glécilla Colombelli de Souza Nunes, Andrea Paesano Jr
Publikováno v:
Orbital: The Electronic Journal of Chemistry, Vol 9, Iss 4, Pp 261-265 (2017)
Iron(II) acetate anhydrous, (i) as received (FeAc) and (ii) processed by freeze-drying (FeAc-FD), were characterized structural, magnetic and morphologically by thermal analysis, scanning electron microscopy, thermogravimetry, differential scanning c
Externí odkaz:
https://doaj.org/article/f97da7fdcbf948faa63eaa055aed71da
Autor:
Antônio O. de Souza, Valdecir Biondo, Paulo Willian C. Sarvezuk, Jusmar V. Bellini, Pedro R. Anizelli, Dimas A. M. Zaia, Andrea Paesano Jr
Publikováno v:
Química Nova, Vol 37, Iss 7, Pp 1132-1137 (2014)
Iron(III) acetate was synthesized by the reflux method using iron enriched in the 57Fe isotope and the compound processed by freeze-drying. The as-synthesized and freeze-dried acetates were characterized regarding their structural, thermal, vibration
Externí odkaz:
https://doaj.org/article/37e1e29d961b4846826371864eedbc4d
Autor:
Glécilla Colombelli de Souza Nunes, Andrea Paesano, Flávio F. Ivashita, Valdecir Biondo, Antônio O. de Souza
Publikováno v:
Orbital: The Electronic Journal of Chemistry, Vol 9, Iss 4, Pp 261-265 (2017)
Iron(II) acetate anhydrous, (i) as received (FeAc) and (ii) processed by freeze-drying (FeAc-FD), were characterized structural, magnetic and morphologically by thermal analysis, scanning electron microscopy, thermogravimetry, differential scanning c
Autor:
T. J. B. Alves, Flávio F. Ivashita, P.W.C. Sarvezuk, Andrea Paesano, Glécilla Colombelli de Souza Nunes, Valdecir Biondo
Publikováno v:
Journal of Magnetism and Magnetic Materials. 421:457-461
Plates of solution annealed Maraging-350 steel were submitted to aging under an inert atmosphere, varying the time and temperature. The aged samples were characterized by X-ray diffraction and Mossbauer spectroscopy. The results revealed that the agi
Autor:
Andrea Paesano, Sabrina Nicolodi, Lilian Felipe da Silva Tupan, Valdecir Biondo, Olivier Isnard, Rafael Franco Ferreira, Flávio F. Ivashita, Glécilla Colombelli de Souza Nunes
Publikováno v:
Hyperfine Interactions. 240
We have investigated exchange-spring magnets made from powders prepared by high-energy milling Nd2Fe14B mixed with 10%wt. Fe, milled for 6 h in a planetary mill, varying the rotation velocity and the starting grain refinement of the soft phase. The s
Publikováno v:
Journal of Alloys and Compounds. 680:701-710
Zr 1-x Fe x O 2 samples were synthesized by a freeze-drying process, varying the iron concentration from x = 0 to x = 0.40. The solid solutions prepared were structurally and magnetically characterized. The results showed that the samples crystallize
Autor:
P.W.C. Sarvezuk, Valdecir Biondo, Andrea Paesano, M.V.S. Nunes, A.M.H. de Andrade, M.C. Blanco, Glécilla Colombelli de Souza Nunes
Publikováno v:
Journal of Alloys and Compounds. 646:321-325
A solubilized Maraging-350 steel used in the nuclear industry, as received from the manufacturer, was finely characterized by X-ray diffraction (Rietveld refinement), Mossbauer spectroscopy and magnetization techniques. For these characterizations, s
Autor:
Jusmar V. Bellini, Valdecir Biondo, Andrea Paesano, Raúl E. Carbonio, M. Cecilia Blanco, Flávio F. Ivashita, Elisa V. Pannunzio-Miner, Valeria C. Fuertes
Publikováno v:
Materials Research Bulletin. 47:2227-2234
Perovskites LnV 0.5Fe 0.5O 3 (Ln = Y, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho and Er) were synthesized by rapid solidification from arc-melted samples and characterized by the study of their crystal structure and hyperfine properties. These metastable
Autor:
B. Hallouche, Luis Ghivelder, Suzana Nóbrega de Medeiros, João Batista Marimon da Cunha, Andrea Paesano, Valdecir Biondo
Publikováno v:
Solid State Sciences. 11:1444-1450
The Fex(Cr2O3)1−x system, with 0.10 ≤ X ≤ 0.80, was mechanically processed for 24 h in a high-energy ball-mill. In order to examine the possible formation of iron–chromium oxides and alloys, the milled samples were, later, thermally annealed
Autor:
Dimas A. M. Zaia, Valdecir Biondo, Antônio O. de Souza, Pedro R. Anizelli, Andrea Paesano, Jusmar V. Bellini, P.W.C. Sarvezuk
Publikováno v:
Química Nova.
Iron(III) acetate was synthesized by the reflux method using iron enriched in the 57Fe isotope and the compound processed by freeze-drying. The as-synthesized and freeze-dried acetates were characterized regarding their structural, thermal, vibration