Abstract
The relaxor ferroelectric polymer, based on poly(vinylidene fluoride-trifluoroethylene- chlorofluoroethylene) (P(VDF-TrFE-CFE)) terpolymer, exhibits high electromechanical response and dielectric response, suitable for a wide range of army applications such as micro-actuators, high efficiency pulse power capacitors, and solid state cooling devices. Recent experimental results show that with a simple blends approach, the terpolymer glass transition temperature can be raised quite markedly, resulting in a significant increase in the elastic modulus and consequently the elastic energy density, while the polarization response and electrostrictive strain remaining nearly the same. Utilizing the high electromechanical response, thin film microactuators and micropumps were fabricated, which showed very high microactuator displacement and force capability in comparison with the traditional piezoceramic based microdevices. Ink-jet microprinting technique was investigated for the fabrication of thin film devices and with a proper control of the solution conditions and surface chemistry, thin films with feature size down to less than 30 m can be fabricated.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 43-56 |
| Number of pages | 14 |
| Journal | Ferroelectrics |
| Volume | 342 |
| Issue number | 1 |
| DOIs | |
| State | Published - 2006 |
| Event | Proceedings of the U.S. Army Workshop on Advanced Active Thin Films For Meso-Micro Scale Applications - Destin, FL, United States Duration: May 10 2005 → May 12 2005 |
All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics