3D Printing and processing of miniaturized transducers with near-pristine piezoelectric ceramics for localized cavitation.

ABSTRACT: The performance of ultrasonic transducers is largely determined by the piezoelectric properties and geometries of their active elements. Due to the brittle nature of piezoceramics, existing processing tools for piezoelectric elements only achieve simple geometries, including flat disks, cylinders, cubes and rings. While advances in additive manufacturing give rise to free-form fabrication of piezoceramics, the resultant transducers suffer from high porosity, weak piezoelectric responses, and limited geometrical flexibility. We introduce optimized piezoceramic printing and processing strategies to produce highly responsive piezoelectric microtransducers that operate at ultrasonic frequencies. The 3D printed dense piezoelectric elements achieve high piezoelectric coefficients and complex arc

SUBMITTER: Lu H 

PROVIDER: S-EPMC10140030 | biostudies-literature | 2023 Apr

REPOSITORIES: biostudies-literature