Lead-free (Ag,K)NbO3 materials for high-performance explosive energy conversion

Materials for Clean Energy Conversion

High Performance Lead-free Piezoelectric Material

Lead has recently been expelled from many commercial applications and materials (for example, from solder, glass and pottery glaze) owing to concerns regarding its toxicity. Lead zirconium titanate (PZT) ceramics are highperformance piezoelectric materials, which are widely used in sensors, actuators and other electronic devices; they contain more than 60 weight per cent lead. Although there ha...

Application of High Temperature Lead-free Solder Materials in Medicine

With the recent rapid advances in medical technology there are a variety of intrusive procedures used in the medical industry today requiring tools, instruments, sensors and components in materials that are inert with respect to reactions with the body. More, new surgical techniques have been developed to improve the quality of operations, reduce the risk to patients and reduce the pain experie...

Designing lead-free antiferroelectrics for energy storage

Dielectric capacitors, although presenting faster charging/discharging rates and better stability compared with supercapacitors or batteries, are limited in applications due to their low energy density. Antiferroelectric (AFE) compounds, however, show great promise due to their atypical polarization-versus-electric field curves. Here we report our first-principles-based theoretical predictions ...

Theoretical Prediction of New High-Performance Lead-Free Piezoelectrics