Abstract The intrinsic conduction mechanism and optimal sintering atmosphere of (Ba 0.85 Ca 0.15 )(Zr 0.1 Ti 0.9 )O 3 (BCZT) ceramics were regulated by Mn-doping element in this work. By Hall impedance analysis, the undoped BCZT exhibit a typical n-type mechanism, electron concentration decreases with increasing oxygen partial pressure. Therefore, best electrical properties (piezoelectrical con...

The Ba0.85Ca0.15Zr0.1Ti0.9O3 (BCZT) ceramics were successfully prepared by the sol-gel process and sintered at 1420 °C. effect of sintering times (2, 4 6 h) on structural, microstructural, electric properties, energy storage, electrocaloric was systematically examined. X-ray diffraction (XRD) results show that all samples crystallize in pure perovskite structure. morphotropic phase transition f...

In this work, we regulated the oxygen vacancy concentration by sintering BCZT + 0.1 mol % Y Nb [BCZT-0.1 (Y Nb)] ceramics under air, oxygen, argon, and vacuum atmospheres examined effect of on phase composition, crystal structure, microstructure, electrical properties. X-ray photoelectron spectrometry diffraction Rietveld refinement showed that air- oxygen-sintered ceramic samples had lower con...

Lead-free Ba0.85Ca0.15Zr0.1Ti0.9O3 (BCZT) ceramic powders were synthesized using the sol–gel method. The ceramics thickness was reduced to achieve high-energy storage and large electrocaloric effect in bulk ceramics. Dielectric, ferroelectric, energy storage, properties investigated for BCZT with 400 µm. Here, pure crystalline structure homogenous microstructure identified by XRD analysis SEM m...

Large piezoelectric properties was observed in (1-x)BZT-(x)BCT where x=0.5 or Ba0.85Ca0.15Ti0.9Zr0.1O3 (denoted as BCZT), leading to a promising candidate for lead-free materials. However, phase formation of the BCZT is controversial and still unclear since various coexistences were identified literatures, instances, mixed phases rhombohedral-tetragonal (R-T), ortho-rhombic-tetragonal (O-T) rho...

The eco-responsible lead-free piezoelectric ceramics have been intensively searched for more than a decade, however, the final goal to replace toxic like lead zirconate titanate (PZT) with compounds, having comparable or even better performance has not yet reached. In this road, Ba0.85Ca0.15Zr0.1Ti0.9O3 (BCZT), possessing excellent dielectric, ferroelectric, and properties are regarded as serio...

The synthesis of non-lead piezoelectric ceramics (1–z)(0.65Bi1.05Fe2O3-0.35BaTiO3)-z Ba(Ti0.8Zr0.2)O3-(Ba0.7Ca0.3)TiO3 using a solid state method and quenching strategy was investigated. processing conditions such as the sintering temperature soaking time were optimized. patterns X-ray diffraction (XRD) displayed pure perovskite structure with no secondary phases. ferroelectric characteristics ...

We introduce an equivalent-circuit element based on the theory of interface pinning in random systems to analyze contribution domain wall motion below coercive field impedance a ferroelectric, as function amplitude [Formula: see text] and frequency applied ac electric field. demonstrate our model bulk (PZT) reference sample then investigate capacitor stacks, containing ferroelectric text]–[Form...