barium titanate nickel
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barium titanate nickel

Study of barium titanate nickel-zinc ferrite based ...

2020-10-20  Composites based on barium titanate and nickel zinc ferrite doped with cooper and samarium were prepared by a mixing method. The formation of barium titanate tetragonalcrystal structureand nickel zinc ferrite cubic spinel structure was identified. Polygonal grains were formed in all three types of ceramics. Due to the very

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Study of barium titanate/nickel-zinc ferrite based ...

The formation of barium titanate tetragonal crystal structure and nickel zinc ferrite cubic spinel structure was identified. Polygonal grains were formed in all three types of ceramics. Due to the very high conductivity of ferrite phase in the materials the ferroelectric hysteresis loops were roundish and not typical for classical ferroelectric ...

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Multiferroic (NiZn) Fe2O4–BaTiO3 composites prepared

2015-12-1  A series of nickel zinc ferrite–barium titanate with general formula yNi 1−x Zn x Fe 2 O 4 −(1−y)BT (x=0.3, 0.5, 0.7, y=0.5) were successfully prepared by mixing of previously prepared powders of nickel zinc ferrite and barium titanate. The composites materials formation was confirmed by XRD and Raman spectroscopy for powders and ceramics, with small amount of secondary phase.

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DFT study of electronic and optical properties of nickel ...

2020-5-5  The calculated band gap energies and optical spectra for the nickel doped Barium titanate nanostructures are compared with the undoped samples of the same. It is found that, the band gap energies of undoped barium titanate calculated by LDA and GGA varies from 4.6 eV to 5 eV.

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Positive influence of Sb doping on properties of di-phase ...

2018-6-15  In the barium titanate hopping of 3d electrons from Ti 4+ to Ti 3+ state is possible and in nickel ferrite among Fe 2+ to Fe 3+ and between Ni 2+ to

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Design and analysis of negative permittivity behaviors in ...

2020-2-15  In this paper, in order to describe the negative permittivity behaviors of ferroelectric and percolating composites, the barium titanate/nickel (BaTiO 3 /Ni) composites were purposely prepared. Most importantly, two kinds of negative permittivity are realized as expected, which are clarified based on the Lorentz model and Drude model, respectively.

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On the incorporation of nickel into hexagonal barium ...

2020-12-17  previously also nickel-doped BaTiO 3 was studied [9–11]. Barium titanate (BaTiO 3) has a variety of phase transitions. Besides the well-known temperature-driven phase transitions cubic125! C tetragonal0!C orthorhombic !90 C rhombohedral of the modifications with 3C stacking, this per-ovskite possesses a hexagonal high-temperature

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Cathodic electrophoretic deposition of barium titanate ...

2007-7-30  Barium titanate films were deposited on nickel substrate by means of cathodic EPD from aqueous suspensions. It allows preparation of thin layers from aqueous solution on base metal electrodes, without creating an intermediate oxide layer and opens the opportunity to prepare complex shapes of dielectric layers onto base metals, using a cheap and environmentally benign method.

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Electromagnetic properties of multiphase composites ...

2021-7-28  Electromagnetic properties of multiphase composites containing barium strontium titanate and nickel zinc ferrite inclusions from 1-4 GHz Author links open overlay panel Andrew J. Fairbanks a Travis D. Crawford a Julio A. Hernandez b Jeremy D. Mateja

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Structural, optical, dielectric, and multiferroic ...

2020-7-10  In addition to the barium, titanium, nickel, sodium, and oxygen spectra peaks, the carbon peak has been detected which could be due to the usage of barium carbonate as the starting material which is not detected by XRD or could be due to the contamination of the investigated surface due to

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On the incorporation of nickel into hexagonal barium ...

2020-12-10  Böttcher R, Langhammer HT, Müller T (2011) Paramagnetic resonance study of nickel ions in hexagonal barium titanate. J PhysCondens Matter 23:115903. Article Google Scholar 24. Lenjer S, Scharfschwerdt R, Kool ThW, Schirmer OF (2000) An off-center ion near a Ba site in BaTiO 3 as studied by EPR under uniaxial stress. Solid State Commun 116:133 ...

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On the incorporation of nickel into hexagonal barium ...

2020-12-17  CERAMICS On the incorporation of nickel into hexagonal barium titanate: magnetic properties and electron paramagnetic resonance (EPR) R. Bo¨ttcher1, H. T. Langhammer2,* , T. Walther2,S.Ku¨cker2, and S. G. Ebbinghaus2 1Fakultät für Physik und Geowissenschaften, Universität Leipzig, Linnéstraße 5, 04103 Leipzig, Germany 2Institut für Chemie, Martin-Luther-Universität Halle

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Effect of nickel and lithium co-substituted barium ...

2016-9-30  Barium titanate (BT) is an extensively studied and attractive ferroelectric material that is being used in a wide range of applications. The perovskite ABO 3 structure of BT provides ample choice for substitution or co-substitution at A site with +1, +2, +3 cations or B site with +3, +4, +5 cations respectively [1–4], this, in turn, affects the crystal structure of barium titanate (BT) and ...

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Study of barium titanate/nickel-zinc ferrite based ...

The formation of barium titanate tetragonal crystal structure and nickel zinc ferrite cubic spinel structure was identified. Polygonal grains were formed in all three types of ceramics. Due to the very high conductivity of ferrite phase in the materials the ferroelectric hysteresis loops were roundish and not typical for classical ferroelectric ...

Read More
DFT study of electronic and optical properties of nickel ...

2020-5-5  The calculated band gap energies and optical spectra for the nickel doped Barium titanate nanostructures are compared with the undoped samples of the same. It is found that, the band gap energies of undoped barium titanate calculated by LDA and GGA varies from 4.6 eV to 5 eV.

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Paramagnetic resonance study of nickel ions in hexagonal ...

2011-3-3  Paramagnetic resonance study of nickel ions in hexagonal barium titanate. R Böttcher 1,4, H T Langhammer 2 and T Müller 3. Published 3 March 2011 • IOP Publishing Ltd Journal of Physics: Condensed Matter, Volume 23, Number 11

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Cathodic electrophoretic deposition of barium titanate ...

2007-7-30  Cathodic electrophoretic deposition (EPD) of barium titanate from aqueous suspensions was performed on nickel substrate. Cathodic deposition allows preparation of thin layers from aqueous solution on base metal electrodes, such as Ni or Cu, without creating an intermediate oxide layer during the deposition. This opens the opportunity to prepare complex shapes of dielectric layers onto base ...

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Paramagnetic resonance study of nickel ions in

Paramagnetic resonance study of nickel ions in hexagonal barium titanate RBottcher¨ 1,4, H T Langhammer2 and T Muller¨ 3 1 Fakult¨at f¨ur Physik und Geowissenschaften, Universit¨at Leipzig, D-04103 Leipzig, Germany 2 Physikalisches Institut, Martin-Luther-Universit¨at Halle-Wittenberg, D-06120 Halle(Saale), Germany

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Strain-mediated elastic coupling in magnetoelectric

PHYSICAL REVIEW B 87, 054410 (2013) Strain-mediated elastic coupling in magnetoelectric nickel/barium-titanate heterostructures Robert Streubel, 1,2

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Investigating Ferroelastic and Piezoelectric Vibration ...

2020-9-25  Barium Titanate and Nickel-PZT Composites by Ted Ankomahene Asare (ABSRACT) Ferroelectric and piezoelectric ceramic reinforced metal matrix composites are new materials being explored for vibration damping purposes. The high damping ability of ferroelectric and piezoelectric ceramics such as barium titanate (BaTiO3) and lead

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Effect of nickel and lithium co-substituted barium ...

2016-9-30  Barium titanate (BT) is an extensively studied and attractive ferroelectric material that is being used in a wide range of applications. The perovskite ABO 3 structure of BT provides ample choice for substitution or co-substitution at A site with +1, +2, +3 cations or B site with +3, +4, +5 cations respectively [1–4], this, in turn, affects the crystal structure of barium titanate (BT) and ...

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Study of barium titanate/nickel-zinc ferrite based ...

The formation of barium titanate tetragonal crystal structure and nickel zinc ferrite cubic spinel structure was identified. Polygonal grains were formed in all three types of ceramics. Due to the very high conductivity of ferrite phase in the materials the ferroelectric hysteresis loops were roundish and not typical for classical ferroelectric ...

Read More
DFT study of electronic and optical properties of nickel ...

2020-5-5  The calculated band gap energies and optical spectra for the nickel doped Barium titanate nanostructures are compared with the undoped samples of the same. It is found that, the band gap energies of undoped barium titanate calculated by LDA and GGA varies from 4.6 eV to 5 eV.

Read More
Paramagnetic resonance study of nickel ions in hexagonal ...

2011-3-3  Paramagnetic resonance study of nickel ions in hexagonal barium titanate. R Böttcher 1,4, H T Langhammer 2 and T Müller 3. Published 3 March 2011 • IOP Publishing Ltd Journal of Physics: Condensed Matter, Volume 23, Number 11

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Paramagnetic resonance study of nickel ions in

Paramagnetic resonance study of nickel ions in hexagonal barium titanate RBottcher¨ 1,4, H T Langhammer2 and T Muller¨ 3 1 Fakult¨at f¨ur Physik und Geowissenschaften, Universit¨at Leipzig, D-04103 Leipzig, Germany 2 Physikalisches Institut, Martin-Luther-Universit¨at Halle-Wittenberg, D-06120 Halle(Saale), Germany

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Strain-mediated elastic coupling in magnetoelectric

PHYSICAL REVIEW B 87, 054410 (2013) Strain-mediated elastic coupling in magnetoelectric nickel/barium-titanate heterostructures Robert Streubel, 1,2

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The use of pulsed laser deposition to produce low ...

2010-11-3  In order to explore the functionalization of wearable fabrics for power generation, barium titanate (BTO) was deposited on nickel tape and on carbon fiber fabric employing pulsed laser deposition (PLD) methods under conditions normally not considered ideal to produce optimum ferroelectric properties, namely, at temperatures as low as 100°C and under various oxygen partial pressures. The ...

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Design and analysis of negative permittivity behaviors in ...

2020-2-1  Design and analysis of negative permittivity behaviors in barium titanate/nickel Acta Materialia ( IF 8.203) Pub Date : 2020-02-01, DOI: 10.1016/j.actamat.2019.12.034 Zhongyang Wang, Kai Sun, Peitao Xie, Qing Hou, Yao Liu, Qilin Gu, Runhua Fan

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Ni(OH)2 as an novel shell layer material for core-shell

2020-9-1  Herein, a flower like barium titanate/nickel hydroxide(BTO/Ni(OH)2) core-shell structured filler has been fabricated to provide a novel approach to modify the interface between BTO and P(VDF-HFP) matrix for dielectric polymer composites.

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Synthesis and Characterization of Nickel FerriteBarium ...

2017-6-20  ferrite and barium titanate starting phase, as well as for the composites with 20 and 40 wt.% of nickel ferrite. Barium titanate has narrow diffraction peaks corresponding its 2 µm average size, while cobalt ferrite synthesized by chemical coprecipitation has wide peaks due to its nanometric crystal size. On the other hand, the x-ray

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