Magnetoelectric lead-free composite ceramic based on the piezoelecrtic Ba0.85Ca0.15Ti0.9Zr0.1O3 (BCZT) and magnetic NiCo0.02Cu0.02Mn0.1Fe1.8O4−d (NCCMF) has been obtained by solid state method using preliminarily synthesized solid-state precursors. X-ray diffraction measurements, microstructural, magnetic, dielectric, piezoelectric magnetoelectric studies have carried out. Impurity phases were ...

Dielectric capacitors own great potential in next-generation energy storage devices for their fast charge-discharge time, while low capacity limits commercialization. Enormous lead-free ferroelectric ceramic capacitor systems have been reported recent decades, and density has increased rapidly. By comparing with some fashioned materials or techniques, which lacks repeatability, as latterly, we ...

Optimizing renewable energy harvesting is of major importance in the following decades. In order to increase performance and efficiency, an ideal balance mechanical piezoelectric properties must be targeted. For this purpose, approach ceramic auxetic honeycomb structures made (Ba,Ca)(Zr,Ti)O3 (BCZT) which produced via injection molding considered. The main design parameter structural angle ? va...

Abstract The microstructure, dielectric properties, relaxor behavior, and energy storage efficiency of un-substituted niobium (Nb) substituted (Ba 0.85 Ca 0.15 )(Zr 0.1 Ti 0.9 ) 1-x Nb x O 3 (for = 0, 0.02 0.05) samples prepared by the solid-state reaction method has been studied in detail. All exhibited perovskite structure with no trace impurity. Composition-dependent phase transition was als...

Conventional cooling method consumes large amount of electricity and heavily relies on hydrofluorocarbon coolants, which are considered “super-greenhouse effect” gases. Electrocaloric (EC) demonstrates high energy efficiency, involves no evaporative coolant, is a promising next-generation technology. A safe operational temperature change the EC material currently limited to well below 10 K, dev...