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Dielectric properties of piezoelectric polyimides
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Farmer, B. L. Simpson, J. O. Ounaies, Z. Young, J. A. |
| Copyright Year | 1997 |
| Description | Molecular modeling and dielectric measurements are being used to identify mechanisms governing piezoelectric behavior in polyimides such as dipole orientation during poling, as well as degree of piezoelectricity achievable. Molecular modeling on polyimides containing pendant, polar nitrile (CN) groups has been completed to determine their remanent polarization. Experimental investigation of their dielectric properties evaluated as a function of temperature and frequency has substantiated numerical predictions. With this information in hand, we are then able to suggest changes in the molecular structures, which will then improve upon the piezoelectric response. |
| File Size | 71857 |
| Page Count | 6 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_20040110723 |
| Archival Resource Key | ark:/13960/t7fr4td05 |
| Language | English |
| Publisher Date | 1997-01-01 |
| Access Restriction | Open |
| Subject Keyword | Nonmetallic Materials Anhydrides Temperature Dependence Polarization Molecular Structure Dielectric Properties Polyimides Piezoelectricity Nitriles Mathematical Models Frequency Distribution High Temperature Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
