Zobrazeno 1 - 10
of 16
pro vyhledávání: '"Jose Antonio Eiras"'
Autor:
Fabio Luis Zabotto, Alexandre José Gualdi, Jose Antonio Eiras, Adilson Jesus Aparecido de Oliveira, Ducinei Garcia
Publikováno v:
Materials Research, Vol 15, Iss 3, Pp 428-433 (2012)
This study evaluates the structural, microstructural, electric and magnetic properties of nickel ferrite samples prepared through the solid state reaction. It was observed that an increase in the sintering temperature produces a higher cation concent
Externí odkaz:
https://doaj.org/article/4b3eb07b2fec42ef99a66c675ca37859
Autor:
Manuel Henrique Lente, Alberto Luís Zanin, Jovan Vasiljevic, Ivair Aparecido dos Santos, Jose Antonio Eiras, Ducinei Garcia
Publikováno v:
Materials Research, Vol 7, Iss 2, Pp 369-372 (2004)
In this work, the thermal stability of piezoelectric constants of PMN-PT ceramics in the tetragonal and rhombohedral phases were investigated in a wide range of temperatures. The results showed that the tetragonal PMN-PT presented higher thermal stab
Externí odkaz:
https://doaj.org/article/75e3fe9d101944d78f2878a4b26106cf
Publikováno v:
Journal of Materials Science: Materials in Electronics. 33:4375-4387
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fc323191513602c59c32877e4931cc90
https://doi.org/10.1007/s10854-021-07630-7
https://doi.org/10.1007/s10854-021-07630-7
Publikováno v:
Applied Physics Letters. 120:132904
The substitution of rare-earth ions has been recognized as an effective way to modify the multiferroic properties, especially to realize the electric field-controlled magnetism in BiFeO3 ceramics, in which the symmetry modulation of R3 c/ Pna21 and t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b1cb39ec59e6cf855f7c661d35508c8b
https://doi.org/10.1063/5.0081147
https://doi.org/10.1063/5.0081147
Autor:
Bárbara Fraygola, José Antônio Eiras
Publikováno v:
Materials Research, Vol 17, Iss 6, Pp 1594-1600 (2014)
Single-phase Pb(Fe2/3W1/3)O3 (PFW) multiferroic ceramics doped with magnetic ions were fabricated using a modified B-site precursor method. Dielectric response was investigated over a wide range of temperature and frequency. Doping did not modify the
Externí odkaz:
https://doaj.org/article/9be181d136134dd68f9199b605eba290
Publikováno v:
Processing and Application of Ceramics, Vol 6, Iss 1, Pp 65-75 (2012)
The multiferroic (1-x)PbFe2/3W1/3O3–xPbTiO3 solid solutions with various compositions x = 0, 0.10, 0.20 and 0.30 were investigated. The features of the relaxor-to-ferroelectric transition with increasing x were discussed based in connection with di
Externí odkaz:
https://doaj.org/article/eccf6c01149343688e674fb02916af9c
Publikováno v:
Materials Research, Vol 14, Iss 4, Pp 434-441 (2011)
Multiferroic Pb(Fe2/3W1/3)O3-PbTiO3 (PFW-PT) ceramics were synthesized via a modified two-stage solid-state reaction. This method utilized Fe2WO6, prepared at a first-stage, which was subsequently reacted with a stoichiometric amount of PbO and TiO2
Externí odkaz:
https://doaj.org/article/aabda2b0b8b546c9bf1070ef193218ed