Zobrazeno 1 - 9
of 9
pro vyhledávání: '"Suzana Nóbrega de Medeiros"'
Autor:
Ana Paula Pereira Fulco, José Daniel Diniz Melo, Carlos Alberto Paskocimas, Suzana Nóbrega de Medeiros, Fernando Luis de Araujo Machado, Alexandre Ricalde Rodrigues
Publikováno v:
Materials Research, Vol 14, Iss 4, Pp 508-513 (2011)
Polymer composite pipes are an appealing option as a substitute for conventional steel pipes, particularly due to their inherent corrosion resistance. However, the composite pipes currently used do not allow non-destructive evaluation (NDE) using ins
Externí odkaz:
https://doaj.org/article/19bcc8b2a78947fc8beba2d473621628
Autor:
João Carlos Rocha de Araújo, Carlos Augusto de Moraes Iglesias, Rodolfo Bezerra da Silva, Suzana Araujo Barbosa, Jayson Xavier, Ernani Dias da Silva Filho, José Luis Cardozo Fonseca, Paloma Boeck Souza, Cristiani Campos Plá Cid, Fernando Luis de Araujo Machado, Edimilson Félix da Silva, Matheus Gamino, Suzana Nóbrega de Medeiros, Marcio Assolin Correa, Felipe Bohn
Publikováno v:
Journal of Physics D: Applied Physics. 55:365002
Although interacting superparamagnetic systems have been widely explored, in most cases the correlations are only assigned to dipolar interactions. Here, we perform a systematic investigation of the properties of superparamagnetic MgFe2O4 nanoparticl
Autor:
Marco Antonio Morales Torres, Waldemar A. A. Macedo, Tibério Magno de Lima Alves, Pedro Lana Gastelois, Luis Eugenio Fernandez Outon, Claudionor Gomes Bezerra, Suzana Nóbrega de Medeiros, B.F. Amorim
Publikováno v:
Repositório Institucional da UFRN
Universidade Federal do Rio Grande do Norte (UFRN)
instacron:UFRN
Universidade Federal do Rio Grande do Norte (UFRN)
instacron:UFRN
We theoretically and experimentally investigated wasp-waisted magnetic hysteresis curves at a low temperature for CoFe2O4 nanopowders. Our theoretical approach proposes a physical mechanism that leads to wasp-waisted behavior for a single magnetic ph
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dfc1fab75466e6ffd5fc0d4e9a1fe542
https://repositorio.ufrn.br/jspui/handle/123456789/29506
https://repositorio.ufrn.br/jspui/handle/123456789/29506
Autor:
Carlos A. Paskocimas, Alexandre Ricalde Rodrigues, Ana Paula Pereira Fulco, José Daniel Diniz Melo, Suzana Nóbrega de Medeiros, F.L.A. Machado
Publikováno v:
Repositório Institucional da UFRN
Universidade Federal do Rio Grande do Norte (UFRN)
instacron:UFRN
Universidade Federal do Rio Grande do Norte (UFRN)
instacron:UFRN
Polymeric composite materials offer advantages for many applications because of a combination of properties, which includes high specific mechanical strength and elastic modulus and corrosion resistance. However, the non-magnetic nature of these mate
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f018442528b0db86abec10e6fb4ae43f
https://repositorio.ufrn.br/handle/123456789/31979
https://repositorio.ufrn.br/handle/123456789/31979
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
Publikováno v:
Journal of Magnetism and Magnetic Materials. 316:29-33
Barium hexaferrite powders with manganese substitution were prepared by mechanosynthesis. The structural and magnetic properties were characterized by X-ray diffractometer and vibration sample magnetometer, respectively. XRD patterns were refined by
Autor:
Suzana Nóbrega de Medeiros, Tibério Magno de Lima Alves, Claudionor Gomes Bezerra, B.F. Amorim
Publikováno v:
Repositório Institucional da UFRN
Universidade Federal do Rio Grande do Norte (UFRN)
instacron:UFRN
Universidade Federal do Rio Grande do Norte (UFRN)
instacron:UFRN
We perform a theoretical and experimental investigation of the magnetic properties of a series of Mn-substituted non-stoichiometric cobalt ferrite nanopowders. We propose a theoretical approach based on the Stoner–Wohlfarth model of coherent rotati
Autor:
Mello, Raul Rodrigues
Publikováno v:
Repositório Institucional da Universidade Estadual de Maringá (RI-UEM)
Universidade Estadual de Maringá (UEM)
instacron:UEM
Universidade Estadual de Maringá (UEM)
instacron:UEM
Ferrites are a class of chemical compounds with the formula AB2O4, where A and B represent various metal cations, usually including iron. These ceramic materials are used for permanent magnets, high density magnetic recording media and gas sensors. C
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od______3056::06d1ee15c8d1ac4beb34aa981326051e
http://repositorio.uem.br:8080/jspui/handle/1/2661
http://repositorio.uem.br:8080/jspui/handle/1/2661
Autor:
Rocha, Raquel de Almeida
Publikováno v:
Repositório Institucional da Universidade Estadual de Maringá (RI-UEM)
Universidade Estadual de Maringá (UEM)
instacron:UEM
Universidade Estadual de Maringá (UEM)
instacron:UEM
Magnetos permanentes de ferrita de estrôncio que possuem a estrutura da magnetoplumbita (SrFe12O19) continuam a ocupar uma posição importante no mercado de magnetos permanentes. A principal característica que justifica o grande sucesso econômico
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od______3056::24850d362258b03171c85e3236489424
http://repositorio.uem.br:8080/jspui/handle/1/2729
http://repositorio.uem.br:8080/jspui/handle/1/2729