Fine-grained multiferroic BaTiO3/(Ni0.5Zn0.5)Fe2O4 composite ceramics synthesized by novel powder-in-sol precursor hybrid processing route

Zhang, Hong Fang; Or, Siu Wing; Chan, Helen Lai Wa

doi:10.1016/j.materresbull.2008.12.007

Cited by 35 publications

(12 citation statements)

References 21 publications

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“…Multiferroic materials have received intensive attention in recent years [1][2][3][4][5]. This is mainly due to their potential applications based on the magnetoelectric coupling effect.…”

Section: Introductionmentioning

confidence: 99%

Effects of niobium donor doping on the phase structures and magnetic properties of Fe-doped BaTiO3 ceramics

Han

et al. 2010

Journal of Alloys and Compounds

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“…Multiferroic materials have received intensive attention in recent years [1][2][3][4][5]. This is mainly due to their potential applications based on the magnetoelectric coupling effect.…”

Section: Introductionmentioning

confidence: 99%

Effects of niobium donor doping on the phase structures and magnetic properties of Fe-doped BaTiO3 ceramics

Han

et al. 2010

Journal of Alloys and Compounds

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“…20,21,[27][28] The main feature is to combine the merits of high crystallinity and high performance of nanocrystalline particles with those of low sintering temperature such as the sol-gel wet chemistry process, and it is easy to achieve a modification of the processing behaviors of ceramics, which is useful to produce fine-grained and high-performance ceramics at low sintering temperatures.…”

Section: Sintering Behavior and Microstructurementioning

confidence: 99%

“…[14][15][16][17][18] ; co-sintering particulate composites [such as cobalt ferrite (CFO)/barium titanium (BaTiO 3 ), nickel ferrite (NFO)/BaTiO 3 etc.] with 0-3 connectivity patterns [19][20][21] ; and column-structure composites [i.e. Terfenol-D/Epoxy and single PZT rods] with 1-3 connectivity patterns 22 are reported to possess an increased magnetoelectric effect of 3-230 times that in single-phase materials.…”

Section: Introductionmentioning

confidence: 99%

Formation and characterization of three-ply structured multiferroic Sm0.88Nd0.12Fe1.93–Pb(Zr0.53Ti0.47)O3 ceramic composites via a solid solution process

Zhang¹,

Or²,

Chan³

et al. 2011

Journal of the European Ceramic Society

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“…They observed low value of magnetoelectric coupling coefficient due to the porous microstructure of the materials. Zhang et al (2009) characterized fine grained multiferroic of BaTiO 3 /Ni 0.5 Zn 0.5-Fe 2 O 4 (BTO/NZFO) composite ceramics synthesized by novel powder-in-sol precursor hybrid processing route. Harnagea et al (2007) prepared BaTiO 3 /Ni 0.5 Zn 0.5 Fe 2 O 4 (BTO/ NZFO) composite by co-precipitation process.…”

Section: Introductionmentioning

confidence: 99%

Magnetoelectric properties of PbZr0.53Ti0.47O3–Ni0.65Zn0.35Fe2O4 multiferroic nanocomposites

2012

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A different kind of multiferroics with ferroelectric-ferrimagnetic (FE-FM) composites: (1 -x) PbZr 0.53 Ti 0.47 O 3 -x Ni 0.65 Zn 0.35 Fe 2 O 4 with x = 0.10, 0.20 and 0.30, were synthesized by a powder-in-sol precursor hybrid processing route. Structural analysis with X-ray diffraction (XRD) data revealed the presence of both PbZr 0.53 Ti 0.47 O 3 (PZT) and Ni 0.65 Zn 0.35 Fe 2 O 4 (NZFO) pure phases in the PZT-NZFO composites. Scanning electron micrographs (SEM) clearly disclose distribution of both PZT and NZFO phases throughout the sample.Dielectric and electrical properties of the system have been investigated in a wide range of frequency at different temperatures. Dielectric constant (e r ) as a function of temperature reveals the paraelectric-FE transition temperature at *408°C having maximum value of e r at the peak [e r max = 1,200] with another low temperature anomaly at *297°C, very close to the magnetic Curie temperature of the NZFO ferrite (T c = 300°C) for the x = 0.1 FE-FM composite. The impedance spectroscopy data of these composites show clearly, contribution of both grain and grain boundary effect in the electrical properties of the composites. Negative temperature coefficient of resistance (NTCR) behavior of the materials indicates their semiconducting nature. The ac conductivity spectrum is found to obey Johnscher's power law very well. The temperaturedependent magnetization hysteresis (M-H) loops of the PZT/NZFO composite show excellent non-saturating ferrimagnetic behavior with increase in both coercive field (H c ) and remanent magnetization (M r ) when the NZFO content in the composite is increased. Polarization (P) versus electric field (E) studies at 300 K give conclusive evidence of the presence of spontaneous polarization in all the three composites (x = 0.1, 0.2 and 0.3). However, area of P-E loop, coercive field (E c ) and remanent polarization (P r ) are found to decrease noticeably with the increase of the NZFO content (x) in these composites.

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Fine-grained multiferroic BaTiO3/(Ni0.5Zn0.5)Fe2O4 composite ceramics synthesized by novel powder-in-sol precursor hybrid processing route

Cited by 35 publications

References 21 publications

Effects of niobium donor doping on the phase structures and magnetic properties of Fe-doped BaTiO3 ceramics

Effects of niobium donor doping on the phase structures and magnetic properties of Fe-doped BaTiO3 ceramics

Formation and characterization of three-ply structured multiferroic Sm0.88Nd0.12Fe1.93–Pb(Zr0.53Ti0.47)O3 ceramic composites via a solid solution process

Magnetoelectric properties of PbZr0.53Ti0.47O3–Ni0.65Zn0.35Fe2O4 multiferroic nanocomposites

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