Lead-Free Ferroelectric and Piezoelectric Ceramics for Energy Storage and Actuation
This community develops ceramic materials that convert mechanical stress into electricity or store electrical energy in capacitors, with a specific focus on replacing toxic lead-based compounds with safer alternatives.
The work centers on perovskite-structured ceramics, particularly barium titanate, bismuth ferrite, and lead zirconate titanate, as well as lead-free compositions like bismuth sodium titanate. Researchers investigate phase transitions, relaxor ferroelectric states, and high-entropy doping strategies to enhance dielectric properties, electrostrain, and energy density. Applications range from multilayer ceramic capacitors for high-power energy storage to piezoelectric actuators and sensors. The recurring methodological focus is on synthesizing thin films and bulk ceramics, then characterizing their structural and electrical responses under varying temperatures and electric fields.
Barium research accounts for 19.7% of this community’s output, representing 12,831 papers, while Bismuth contributes 15.6% (10,823 papers) and Titanium 11.3% (24,594 papers).
The community comprises 65,071 papers, published primarily in the Journal of Applied Physics, Ceramics International, and Applied Physics Letters.
Recent work continues to focus on high-entropy relaxor ferroelectrics and lead-free multilayer capacitors, with specific attention to improving energy storage performance at elevated temperatures and enhancing efficiency through domain engineering.