Journal ArticleDOI
Effect of Temperature on the Elastic and Anelastic Behaviour of Magneto-Ferroelectric Composites Ba0.8Pb0.2TiO3 + Ni0.93Co0.02Mn0.05Fe1.95O4-δ in the Ferroelectric Rich Region
TLDR
In this article, X-ray diffraction has been used to confirm the presence of two phases of magnetorrolectric phase transition in composite materials, which is explained in the light of structural phase transition.Abstract:
Composites with composition xBa08Pb02TiO3+ (1 −x) Ni093Co002Mn005Fe195O4-δ in which x varies as 10, 09, 07 and 05 in molar percent have been prepared by the conventional ceramic double sintering process The presence of the two phases has been confirmed by X-ray diffraction These composites were prepared for their use as magnetoferrolectric devices Variation of longitudinal modulus (L) and internal friction loss (Q
−1) of these samples with temperature at 142 kHz has been studied in the wide temperature range 300 to 630 K The elastic behaviour (L) showed a break at the ferroelectric Curie temperature (498 K) in the case of pure ferroelectric material (Ba08Pb02TiO3) This break shifted to lower temperature side as the ferrite component increases in the composite The temperature variation of internal friction loss (Q
−1) showed a corresponding stress induced relaxation peak at the ferroelectric-non-ferroelectric phase transition This behaviour is explained in the light of structural phase transitionread more
Citations
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Journal ArticleDOI
Comparative investigation on the structural, morphological, optical, and magnetic properties of CoFe2O4 nanoparticles
K. Kombaiah,J. Judith Vijaya,L. John Kennedy,M. Bououdina,R. Jothi Ramalingam,Hamad A. Al-Lohedan +5 more
TL;DR: In this paper, a sustainable production of magnetic cobalt ferrite nanoparticles by conventional (CHM) and microwave heating (MHM) method was reported, where Hibiscus rosa-sinensis extract was used as both reducing and stabilizing agent.
Journal ArticleDOI
Magnetic properties and dielectric behavior in ferrite/ferroelectric particulate composites
Rupesh S. Devan,B.K. Chougule +1 more
TL;DR: In this paper, a double-sintering ceramic method was used for the preparation of composites of ferrite and ferroelectric phases having the general formula (x)BaTiO3+(1-x)Ni0.92Co0.03Cu0.05Fe2O4 (where x is mole fraction of components that varies as 0.85, 0.70 and 0.55).
Journal ArticleDOI
Studies on lead-free multiferroic magnetoelectric composites
TL;DR: In this article, a lead-free multiferroic magnetoelectric composites consisting of ferrimagnetic Ni0.93Co0.02Mn0.05Fe1.5Bi0.5TiO3 (NBT) phases were synthesized by the solid-state sintering method.
Journal ArticleDOI
Structural analysis and electrical properties of ME composites
TL;DR: In this article, the structural analysis was carried out to confirm the presence of two phases in composites, and the dc resistivity ( ρ dc ) was measured as a function of temperature in the range 300-800 K.
Journal ArticleDOI
Multiferroic (NiZn) Fe2O4–BaTiO3 composites prepared from nanopowders by auto-combustion method
A.S. Dzunuzovic,M.M. Vijatović Petrović,Bojan Stojadinović,Nikola Ilic,J.D. Bobić,Cesar Renato Foschini,Maria Aparecida Zaghete,Biljana Stojanović +7 more
TL;DR: In this paper, a multiferroic composites with the general formula yNi 1− x Zn x Fe 2 O 4 −(1− y )BT ( x = 0.3, 0.5, 0., 0.7, y =0.5) were prepared by mixing barium titanate and nickel zinc ferrite powders in a liquid medium in the ball mill.
References
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Journal ArticleDOI
Dielectric and Piezoelectric Properties of 0.91Pb(Zn1/3Nb2/3)O3-0.09PbTiO3 Single Crystals
TL;DR: In this article, the dielectric, piezoelectric and elastic properties of 0.91(PbZn1/3Nb2/3)O3−0.09PbTiO3 single crystals have been investigated as functions of temperature and applied electric field.
Journal ArticleDOI
A sintered magnetoelectric composite material BaTiO3-Ni(Co, Mn) Fe2O4
TL;DR: In this paper, the authors deal with the preparation and some properties of the combination of BaTiO3-Ni(Co, Mn)Fe2O4, and investigates the influence of the cooling rate after sintering, TiO2 additions, the mole ratio of both phases and the crystallite size of the grains of both materials on some physical properties of composite material.
Journal ArticleDOI
Use of the Piezoelectric Gauge for Internal Friction Measurements
TL;DR: In this paper, an auxiliary quartz crystal was added to the usual composite piezoelectric resonator, which simplifies the measurement procedure and permits the evaluation of amplitude dependent decrements over a wide range of strain amplitudes.
Journal ArticleDOI
Magnetoelectric interaction phenomena in materials
TL;DR: In this paper, the magnetoelectric effect in antiferromagnetic Cr2O3 was predicted by Dzyaloshinskii which was later experimentally confirmed by Astrov and Folenet al.
Journal ArticleDOI
Conductivity, dielectric behaviour and magnetoelectric effect in copper ferrite-barium titanate composites
TL;DR: In this paper, the conduction phenomenon was explained on the basis of a small polaron-hopping model and the static value of the magnetoelectric conversion factor was studied as a function of intensity of the magnetic field.