A Superparaelectric State in Relaxor Ferroelectric (Sr,Bi)TiO-Bi(Mg,Ti)O-Modified BaTiO Ceramics to Achieve High Energy Storage Performance.

Dielectric ceramic capacitors are highly regarded for their rapid charge-discharge, high power density, and cyclability in various advanced applications. However, their relatively low energy storage density has prompted intensive research aiming at developing materials with a higher energy density. To enhance energy storage properties, research has focused on modifying ferroelectric materials to induce relaxor ferroelectricity.

Autonomous Resonance-Tuning Mechanism for Environmental Adaptive Energy Harvesting.

An innovative autonomous resonance-tuning (ART) energy harvester is reported that utilizes adaptive clamping systems driven by intrinsic mechanical mechanisms without outsourcing additional energy. The adaptive clamping system modulates the natural frequency of the harvester's main beam (MB) by adjusting the clamping position of the MB. The pulling force induced by the resonance vibration of the tuning beam (TB) provides the driving force for operating the adaptive clamp.

Grain Growth Behavior and Electrical Properties of 0.96(KNa)NbSbO-0.04Bi(NaK)ZrO Ceramics.

This study investigated the causes of microstructural changes and the resultant electrical properties according to the sintering temperature of 0.96(KNa)NbSbO-0.04Bi(NaK)ZrO lead-free ceramics by analyzing the correlation between vacancy concentrations and 2D nucleation.

High Magnetic Field Sensitivity in Ferromagnetic-Ferroelectric Composite with High Mechanical Quality Factor.

In this study, composite devices were fabricated using ferromagnetic FeSiB-based alloys (Metglas) and ferroelectric ceramics, and their magnetic field sensitivity was evaluated. Sintered 0.95Pb(ZrTi)O-0.