Surface and DOmain Nano-Engineering of Relaxor Single Crystal for Acoustic Sensors
Abstract
Abstract Relaxor single crystals are promising for many naval devices. Further enhancing piezoelectric coefficients and coercive field has been difficult, yet critical to achieving the next generation naval devices. In this project, surface and domain nano-engineering methods are investigated to increase dielectric and piezoelectric properties of relaxor crystals for small signal naval devices. Domain wall nano-engineering is studied to enhance coercive field of relaxor single crystals for large signal naval devices. Surface and domain nano-engineering theory, micro/nanofabrication methods for surface and domain engineering, and domain characterization methods will be extensively investigated in this project. The expected results will enable more efficient naval acoustic sensing and acoustic transmitting, and energy harvesting from ambient environment. The high electrical energy density will also enable actuators with low driving voltages and low power consumption. In addition to the naval sensing and actuating, the relaxor crystals with nano-engineered domains and nano-composite electrodes hold great potential for structural health monitoring (SHM) sensors, bio-sensors, novel advanced actuators, and transducers for biomedical and aerospace applications.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Aug 12, 2016
- Source ID
- N000141512418
Entities
People
- Xiaoning Jiang
Organizations
- North Carolina State University
- Office of Naval Research
- United States Navy