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...

Lead zirconate titanate (PZT) nanopowders with spherical-shaped morphology, perovskite structure and an average size of 20 nm were successfully synthesized. The prepared PZT nanopowders were characterized by differential thermal analysis (DTA), X-ray diffraction (XRD), scanning electron microscopy (SEM), Energy dispersive X-ray (EDS) and Transmission electron microscopy (TEM) technique. Single-...

Compared to AgNbO 3 based ceramics, the experimental investigations on single crystalline , especially ground state and ferroic domain structures, are not same level. Here, successfully synthesized crystal using a flux method, we observed coexistence of ferroelastic ferroelectric structures by combination study polarized light microscopy piezoresponse force microscopy. This finding may provide ...

Millimeter waves are increasingly used in modern telecommunication systems for wireless data transmission. However, higher path loss, especially caused by non-line-of-sight scenarios, remains challenging. The design of an electrically controllable reflector the millimeter-wave range is elaborated and presented this manuscript. was based on distributed ferroelectric ceramic elements could be a f...

In the following research, Lead magnesium niobate relaxor ferroelectric (PMN-PZT) ceramic powders were synthesized using the combustion method grand urea as the fuel for the first time. The starting materials used were lead nitrate, magnesium acetate, niobium oxide, zirconium nitrate, titanium oxide.     The raw materials were first mixed using the general formula of (1-x)Pb(M...

Active control of defect structures and associated polarization switching in a ferroelectric material is achieved without compromising its ferroelectric properties. Based on dipolar interaction between defect dipole and polarization, the unique functionality of the defect dipole to control ferroelectric switching is visualized. This approach can provide a foundation for novel ferroelectric appl...

The discovery of ultrahigh piezoelectricity in relaxor-ferroelectric solid solution single crystals is a breakthrough in ferroelectric materials. A key signature of relaxor-ferroelectric solid solutions is the existence of polar nanoregions, a nanoscale inhomogeneity, that coexist with normal ferroelectric domains. Despite two decades of extensive studies, the contribution of polar nanoregions ...

In a coupled ferroelectric-ferromagnetic system, i.e., a composite multiferroic, the propagation of magnetic or ferroelectric excitations across the whole structure is a key issue for applications. Of special interest is the dynamics of localized magnetic or ferroelectric modes (LM) across the ferroelectric-ferromagnetic interface, particularly when the LM's carrier frequency is in the band of ...

Purpose The electrical properties of piezoelectric vibrators have a crucial influence on the operating state ultrasonic motors. In order to solve problem that current vibrator generates large amount heat during vibration degrade its performance, which in turn affects normal operation motors, this paper prepares novel and tests maximum velocity under working condition, is more than twice as much...