Zobrazeno 1 - 10
of 75
pro vyhledávání: '"Cristina Bormio Nunes"'
Autor:
Mônica Sumie Hieda, João Paulo Barros Machado, Eduardo de Oliveira Silva Júnior, Mateus Botani de Souza Dias, Cristina Bormio Nunes, Rodrigo Gabas Amaro de Lima, Antonio Carlos da Cunha Migliano, Vera Lúcia Othéro de Brito
Publikováno v:
Materials Research, Vol 21, Iss 3 (2018)
Ni-Co ferrites, especially the ones with lower cobalt fractions, are candidate materials for applications in magnetomechanical sensors and electromagnetic wave absorbers. This work studied the microstructure, magnetostriction, flexural strength, and
Externí odkaz:
https://doaj.org/article/1e84ff2e30e84d5d8e5566ebfcdb73d8
Autor:
Leonardo Violim Lemos, Stéphanie Alá Cunha, Vera Lúcia Othéro de Brito, Cristina Bormio Nunes
Publikováno v:
Sensors, Vol 12, Iss 8, Pp 10086-10096 (2012)
Cobalt ferrite is a ferrimagnetic magnetostrictive ceramic that has potential application in magnetoelastic and magnetoelectric transducers. In this work, CoFe2O4 was obtained using a conventional ceramic method and Bi2O3 was used as additive in orde
Externí odkaz:
https://doaj.org/article/1689fbcc51e94b4599ef48d766e2405a
Autor:
Francisco Carvalho Eduardo de, João Paulo Machado Barros, Vera Lucia de Brito Othero, Cristina Bormio-Nunes, Julia Maria de Morais Santos
Publikováno v:
Processing and Application of Ceramics, Vol 15, Iss 2, Pp 136-145 (2021)
In this paper, NiZnCo ferrite was produced by solid state synthesis, calcination at 1000?C and sintering at 1250?C in air atmosphere. The microstructure and phases of the sintered sample were analysed by scanning electron microscopy and X-ray diffrac
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6895414ebd30bf70b974e5009289b1bc
https://doi.org/10.2298/pac2102136b
https://doi.org/10.2298/pac2102136b
Autor:
Cristina Bormio-Nunes, Fabio Martins Cardoso, Rodolfo da Silva Teixeira, Jhonatan Feitoza Bastos
Publikováno v:
SSRN Electronic Journal.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c146f48f14168dd5a4f836f5ae0b4241
https://doi.org/10.2139/ssrn.4087336
https://doi.org/10.2139/ssrn.4087336
Autor:
Cristina Bormio-Nunes, Fernando Froes
Publikováno v:
Journal of Applied Physics. 133:125109
The current work presents the study of three alloys, (1) the binary Fe0.7Co0.3 alloy (atomic fraction), (2) the addition of 3 at. % of Ti, and (3) the addition of 3 at. % of Ti and 1% of Nb. The interest is to increase the permeability of this binary
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9df897081fd0c12c4ebe3504d3e8328b
https://doi.org/10.1063/5.0140457
https://doi.org/10.1063/5.0140457
Autor:
Cristina Bormio-Nunes, Fábio Martins Cardoso, Rodolfo da Silva Teixeira, Jhonatan Feitoza Bastos
Publikováno v:
Journal of Alloys and Compounds. 923:166301
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0e53b9e3e1a9df55736ae38a9e60ff05
https://doi.org/10.1016/j.jallcom.2022.166301
https://doi.org/10.1016/j.jallcom.2022.166301
Publikováno v:
Physics Letters A. 383:793-800
In the present work are reported the stress annealing (SA) effect on magnetic properties of Fe–Al–B alloys and the result on the piezomagnetic coefficient d 33 ⁎ = d B / d σ | H , where σ is the applied stress, B is the magnetic induction and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a3d83f977c4cd2dd05cb1e2fa02f48d5
https://doi.org/10.1016/j.physleta.2018.11.051
https://doi.org/10.1016/j.physleta.2018.11.051
Publikováno v:
Sensors, Vol 20, Iss 3557, p 3557 (2020)
Sensors
Volume 20
Issue 12
Sensors (Basel, Switzerland)
Sensors
Volume 20
Issue 12
Sensors (Basel, Switzerland)
This paper describes a magnetoelastic strain sensor based on the ∆E effect and discusses some materials used in its construction. A polycrystalline Fe&ndash
Al&ndash
B alloy with good quality magnetoelastic properties was used as the tran
Al&ndash
B alloy with good quality magnetoelastic properties was used as the tran
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::30f7f74adf4ba5a190068b5b24013d16
https://www.mdpi.com/1424-8220/20/12/3557
https://www.mdpi.com/1424-8220/20/12/3557
Publikováno v:
Journal of Materials Research. 33:2207-2213
The Fe–18.6% Ga alloy (at.%) has a high magnetostriction and an excellent piezomagnetic (PZM) property. However, Fe–Ga has a poor ductility and the addition of B helps to improve this property. The magnetostriction of the Fe–Ga alloy is not app
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::236aff1499ac8c210937fb3ccbee024c
https://doi.org/10.1557/jmr.2018.160
https://doi.org/10.1557/jmr.2018.160
Magnetic characterization of ODS-Eurofer steel: Remanent magnetization and magnetostriction behavior
Autor:
Cristina Bormio-Nunes, Hugo Ricardo Zschommler Sandim, Maria José Ramos Sandim, Reny Angela Renzetti
Publikováno v:
Fusion Engineering and Design. 126:5-9
Oxide dispersion strengthened ODS-Eurofer steel is a promising candidate for structural applications in future nuclear fusion reactors. Samples of 9Cr-ODS-Eurofer steel were cold rolled up to 80% thickness reduction and annealed up to 1350 °C for 1
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e4d16b551fc5e001fdc445788d02fd81
https://doi.org/10.1016/j.fusengdes.2017.11.003
https://doi.org/10.1016/j.fusengdes.2017.11.003