The Fe-doped BaTiO3 ceramics prepared by the solid-state-reaction method show simultaneously the ferromagnetic order with the magnetic transition temperature over 680 …

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Abstract. The effect of different milling conditions on the formation of Fe-doped TiO 2 powders by mechanical alloying was investigated by Möss spectrometry. The milling conditions investigated were ball to powder weight ratio, milling time, rotation velocity of supporting disc, and the type of starting reactive iron and its concentration.

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Introduction All-solid-state batteries with solid electrolytes show promise for use in next-generation batteries. 1 Sulfide solid electrolytes have become promising candidates due to the strong polarizability of sulfur anions, which has led to high ionic conductivity and superior mechanical properties in comparison with oxide solid electrolytes. 2,3 P 2 S 5-based solid electrolytes …

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Synthesis and Characterization of Bi doped BaTiO3 ceramic. Ba1-xBi2x/3TiO3 ceramics were prepared by solid state reaction route in different value of x (i.e., x = 0, 0.01, 0.025, 0.05, 0.075, 0.1). Structural property of all compositions is studied by XRD and surface morphology of the sintered pellets is studied by SEM analysis.

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Pure and doped BaTiO3 were prepared through mechanical milling and conventional solid-state reaction methods. The XRD analysis revealed the formation and progressive increase of a hexagonal phase ...

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Lead zirconate-titanate [Pb(Zr,Ti)O 3 (PZT)] is the most widely used piezoceramic material for electromechanical device applications. The toxicity and environmental impacts of lead have been known since the ancient times, 1 1. S. …

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Herein, a newly designed Fe-Mn-O compositing oxide with Fe-MnO 2, Mn-Fe 2 O 3, (Fe 0.67 Mn 0.33)OOH solid solution and FeOOH as the main components, simply through solvent-free mechanical ball milling pyrolusite (MnO 2) and ferrihydrite (FeOOH) together has been reported.

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The crystal phase of the starting powders Fe/BaTiO 3 (FBT) was determined by a Philips PW 1050 powder diffractogram, using CuKα 1/2 filtered radiation. Tests were performed at room temperature in the range of angles 10°–90° (2θ) with a step of 0.05° and the retention time of 1 s per step.Analysis of the broadening of Bragg reflections is a very convenient way to …

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Li6PS5Cl solid electrolytes synthesized by mechanical milling† Kazuhiro Hikima, a Nguyen Huu Huy Phuc, a Hirofumi Tsukasaki,b Shigeo Mori,b Hiroyuki Mutoc and Atsunori Matsuda*a The performances of next generation all-solid-state batteries might be improved by using multi-valent cation doped Li 6PS 5Cl solid electrolytes. This study provided ...

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Abstract. The structural, ferroelectric and magnetic properties of bulk perovskite Fe -doped BaTiO3 (BFTO) prepared by standard solid-state reaction have been investigated. X-ray diffraction (XRD) identifies the tetragonal structure of BFTO samples. Rietveld refinements of XRD data indicates that the doping ions led to ab-plane expansion and ...

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In this work, we present a study of the structural, optical, ferroelectric and dielectric properties of BaTiO 3 doped with diluted quantities of Fe 3+ (x = atomic fraction; x = 0, 0.01, 0.02, 0.04; BaFe x Ti 1-x O 3).Pure and doped BaTiO 3 were prepared through mechanical milling and conventional solid-state reaction methods. The XRD analysis revealed the formation and …

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conventional solid-state reaction method. Their structural, dielectric and magnetic properties were carefully investigated. It was found that Fe-doping could effectively improve the dielectric constant of SrZrO 3. Moreover, ferromagnetism with a Curie temperature of about 685 K was successfully introduced by a small amount of Fe dopant.

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Apatite-type lanthanum silicates (ATLS) doped by Fe were prepared by using mechanical activation, and the effect of the nature of the dopant raw materials on the formation of ATLS was considered. Genesis of the formation of apatite was studied by XRD, IR, HRTEM, and Möss and UV/Vis electron spectroscopy.

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The Fe-doped TiO2 powders were prepared by mechanical alloying in argon, air and oxygen atmospheres and characterized using X-ray diffraction, vibrating sample magnetometer (VSM) and Möss ...

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In this framework, the STO perovskite structure was synthesized using a solid-state reaction through mechanical milling and calcination. This approach is a facile and cost-effective method compared to the chemical methods. The effect of La-Fe doping was investigated.

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The effect of MnO2 doping on the structure, microstructure and dielectric properties of BaTiO3 has been studied. For this purpose MnO2-doped BaTiO3 ceramics have been prepared using a conventional ceramic method. The energydispersive X-ray spectroscopy investigations have revealed that the samples BaTiO3 + x wt. % MnO2 (x = 0.01; 0.1) are perfectly sintered.

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Pure and doped BaTiO3 were prepared through mechanical milling and conventional solid-state reaction methods. The XRD analysis revealed the formation and progressive increase of a hexagonal phase with the addition of Fe3+.

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Structural study of Fe 2 O 3-doped calcium phosphates obtained by the mechanical milling method. C C Silva 1,2, M P F Graça 2, M A Valente 2 and A S B Sombra 1. Published 29 April 2009 • 2009 The Royal Swedish Academy of Sciences Physica Scripta, Volume 79, Number 5 Citation C C Silva et al 2009 Phys. Scr. 79 055601

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PDF | Vanadium and iron doped rutile-type TiO2 were prepared by mechanical milling(MM) at 500 rpm for 15 minutes from the powder mixtures of (x/2)V2O5... | Find, …

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High calcination of ferroelectric BaTiO3 doped Fe nanoceramics prepared by a solid-state sintering method Samuvel, K. Ramachandran, K. SRM Univ, Dept Phys, Fac Engn & Technol, Chennai 600026, Tamil Nadu, India,SRM Univ, Dept Phys

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Mn-doped BaTiO3 ceramicswerealso preparedby theconventional solid-statereactionroute[22]. Dielectric lossdecreased with the increasing Mn content, however, doping had no significant e ect on the average grain size of BaTiO3. In this work, 0, 5 and 10 at. % Mn-doped BaTiO3 ceramics sintered via conventional mixed oxide

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Synthesis of nanomaterials by a simple, low cost and in high yield has been a great challenge since the very early development of nanoscience. Various bottom and top down approaches have been developed so far, for the …

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y mol% Fe-doped Ba(Zr0.2Ti0.8)O3—x mol%(Ba0.7Ca0.3)TiO3 (abbreviated as yFe:BCZTx) ferroelectric ceramics with y = 0, 0.375, 0.75, and 1.5 across the morphotropic phase boundary (MPB) with x = 44 and 56 were fabricated via conventional solid state reaction methods. Fe incorporated into the lattice and all the yFe:BCZTx ceramics showed pure perovskite …

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This study examined the effects of the combination of starting materials on the properties of solid-state reacted BaTiO3 using two different types of BaCO3 and TiO2. In addition, the effect of mechanochemical activation by high energy milling and the Ba/Ti molar ratio on the reaction temperature, pa …

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Abstract. The preparation of massive oxides Zn 1−x Fe x O by means of mechanical milling in diverse gaseous atmospheres and starting with different powder mixtures was investigated. ZnO powder with 10 at. % admixture of Fe, FeO or Fe 2 O 3, were milled during 1, 4 or 16 h and characterized by X-ray diffraction and Möss spectroscopy.Different phases …

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Nanostructured powders of pristine Fe 3 O 4, BaTiO 3, and Fe-BaTiO 3 were synthesized using hydrothermal method and BaTiO 3 /Fe 3 O 4 and Fe-BaTiO 3 /Fe 3 O 4 composite sample wer

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The sample was prepared with the solid state reaction method using stoichiometric amounts of BaCO 3, TiO 2, and Fe 2 O 3. The X-ray diffraction (XRD) experiments were carried out on Philips X'Pert PRO powder diffractometer (Cu Kα = 1.54056 Å) with a scan step of 0.050, while the ferromagnetic properties were measured with a vibrating sample ...

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Fine (Ba 0.98 Ca 0.02 ) 1.002 TiO 3 powders for high capacitance multilayer ceramic capacitors (MLCCs) application were synthesized by solid state reaction method. The effects of mechanochemical activation using high energy milling and the starting materials properties on the reaction temperature and on the final powder properties were investigated.

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