Ferroelectric and dielectric properties of ferrite-ferroelectric ceramic composites (Articolo in rivista)

Type
Label
  • Ferroelectric and dielectric properties of ferrite-ferroelectric ceramic composites (Articolo in rivista) (literal)
Anno
  • 2013-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1063/1.4792494 (literal)
Alternative label
  • Ciomaga, Cristina Elena and Neagu, Alexandra Maria and Pop, Mihai Valentin and Airimioaei, Mirela and Tascu, Sorin and Schileo, Giorgio and Galassi, Carmen and Mitoseriu, Liliana (2013)
    Ferroelectric and dielectric properties of ferrite-ferroelectric ceramic composites
    in Journal of applied physics
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Ciomaga, Cristina Elena and Neagu, Alexandra Maria and Pop, Mihai Valentin and Airimioaei, Mirela and Tascu, Sorin and Schileo, Giorgio and Galassi, Carmen and Mitoseriu, Liliana (literal)
Pagina inizio
  • 074103 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 113 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali
  • 7 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
  • 7 (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Ciomaga, CE (Reprint Author), Alexandru Ioan Cuza Univ, Fac Phys, Iasi 700506, Romania. Ciomaga, Cristina Elena; Neagu, Alexandra Maria; Pop, Mihai Valentin; Mitoseriu, Liliana, Alexandru Ioan Cuza Univ, Fac Phys, Iasi 700506, Romania. Airimioaei, Mirela, Alexandru Ioan Cuza Univ, Fac Chem, Iasi 700506, Romania. Airimioaei, Mirela, Univ Genoa, Dept Chem & Proc Engn, I-16129 Genoa, Italy. Tascu, Sorin, Alexandru Ioan Cuza Univ, RAMTECH Fac Phys, Iasi 700506, Romania. Schileo, Giorgio, Sheffield Hallam Univ, Christian Doppler Lab Adv Ferro Oxides, Sheffield S1 1WB, S Yorkshire, England. Galassi, Carmen, ISTEC, CNR, I-48018 Faenza, Italy. (literal)
Titolo
  • Ferroelectric and dielectric properties of ferrite-ferroelectric ceramic composites (literal)
Abstract
  • Particulate composites of ferrite and ferroelectric phases with xNiFe(2)O(4) (NF) and (1-x)Pb-0.988 (Zr0.52Ti0.48)(0.976)Nb0.024O3 (where x = 2, 10, 20, 30, 50, 70, and 100 wt. %) were prepared in situ by sol-gel method. The presence of a diphase composition was confirmed by X-ray diffraction while the microstructure of the composites was studied by scanning electron microscopy revealing a good mixing of the two phases and a good densification of the bulk ceramics. The dielectric permittivity shows usual dielectric dispersion behavior with increasing frequency due to Maxwell-Wagner interfacial polarization. AC conductivity measurements made in frequency range 1 Hz-1 MHz suggest that the conduction process is due to mixed polaron hopping. The effect of NF phase concentration on the P-E and M-H hysteresis behavior and dielectric properties of the composites was investigated. At low NF concentration a sharp ferro-paraelectric transition peak can be observed at around 360 degrees C while for higher NF concentrations a trend to a diffuse phase transition occurs. All the composite samples exhibit typical ferromagnetic hysteresis loops, indicating the presence of ordered magnetic structure. (C) 2013 American Institute of Physics. [http://dx.doi.org/10.1063/1.4792494] (literal)
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