SBIR Phase I: Texturing of High Curie Temperatures (Tc) Piezoelectrics by Templated Grain Growth

Award Information
Agency:
National Science Foundation
Branch
n/a
Amount:
$99,655.00
Award Year:
2003
Program:
SBIR
Phase:
Phase I
Contract:
0232518
Award Id:
62756
Agency Tracking Number:
0232518
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
2820 East College Avenue, State College, PA, 16801
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
n/a
Principal Investigator:
Seongtae Kwon
() -
Business Contact:
() -
Research Institution:
n/a
Abstract
This Small Business Innovation Research (SBIR) Phase I Project will lead to the fabrication process of Bismuth Scantanate-Lead Titanate(BiScO3-PbTiO3) ceramics with a textured microstructure to yield materials with very large piezoelectric properties over a broad temperature range. In the case of existing ceramics, the piezoelectric properties are too low for these applications while recently discovered single crystal materials suffer from low Curie temperature and high manufacturing costs. The objective of this research is to develop textured ceramics from the BiScO3-PbTiO3 system. These materials have been shown to possess a very high Curie temperature (Tc. >450 C) and high piezoelectric properties suitable for meeting the needs of emerging sensor, transducer, and actuator applications. The templated grain growth method will be used as a means of texturing microstructure to produce polycrystalline ceramics with properties close to those of single crystal. Commercially, piezoelectric ceramics and single crystals are tantalizingly close to enabling a broad range of advanced applications including vibration sensors with sensitivity at the theoretical limit, two-dimensional ultrasound phased arrays for three dimensional volumetric imaging, and high authority actuators for smart structures (vibration control and surface morphing). This program will lead to highly piezoelectrically active material produced at nearly the same cost as existing ceramic compositions.

* information listed above is at the time of submission.

Agency Micro-sites


SBA logo

Department of Agriculture logo

Department of Commerce logo

Department of Defense logo

Department of Education logo

Department of Energy logo

Department of Health and Human Services logo

Department of Homeland Security logo

Department of Transportation logo

Enviromental Protection Agency logo

National Aeronautics and Space Administration logo

National Science Foundation logo
US Flag An Official Website of the United States Government