Header menu link for other important links
X
Studies on magnetoelectric coupling in lead-free [(0.5) BCT-(0.5) BZT]-NiFe2O4 laminated composites at low and EMR frequencies
Sakthivel Dinesh Kumar,
Published in Elsevier Ltd
2018
Volume: 743
   
Pages: 240 - 248
Abstract
The possibility of achieving significantly higher magnetoelectric (ME) coupling in lead-free [(0.5)BCT-(0.5)BZT]/NiFe2O4 and NiFe2O4/[(0.5)BCT-(0.5)BZT]/NiFe2O4 laminates, processed by epoxy bonding using 1 mm -thick [(0.5)BCT-(0.5)BZT] and NiFe2O4 layers was reported. The effect of coupling modes in these bi- and tri-layer laminates was investigated through evaluating transverse (αE,31) and longitudinal (αE,33) ME coefficients both at low (1 kHz) and at electromechanical resonance frequencies (300–380 kHz) under external bias field. Measurements on frequency dependence of ME coefficients revealed resonance enhancement due to bending and radial acoustic modes. A maximum ME response of 0.98 and 1.1 V/cm⋅Oe was obtained for the [(0.5)BCT-(0.5)BZT]/NiFe2O4 and NiFe2O4/[(0.5)BCT-(0.5)BZT]/NiFe2O4 composites, respectively at the radial mode resonance, and these finding are explained on the basis of mechanical coupling exists at the interfaces of [(0.5)BCT-(0.5)BZT] and NiFe2O4 phases. © 2018 Elsevier B.V.
About the journal
JournalData powered by TypesetJournal of Alloys and Compounds
PublisherData powered by TypesetElsevier Ltd
ISSN09258388
Open AccessNo
Concepts (15)
  •  related image
    Composite materials
  •  related image
    Composite micromechanics
  •  related image
    Laminated composites
  •  related image
    Laminates
  •  related image
    Nickel compounds
  •  related image
    Resonance
  •  related image
    ELECTROMECHANICAL RESONANCES
  •  related image
    Frequency dependence
  •  related image
    LEAD FREE CERAMICS
  •  related image
    Magnetoelectric couplings
  •  related image
    Magnetoelectrics
  •  related image
    MECHANICAL COUPLING
  •  related image
    Multiferroics
  •  related image
    RESONANCE ENHANCEMENT
  •  related image
    Iron compounds