Piezeoelectric ceramic-polymer composites
US5702629A · kind A · utility
47Cited by
3References
27Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 21, 1996 |
| Grant date | Dec 30, 1997 |
| Priority date | — |
| Expiry date | Mar 21, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10N30/092
Abstract
Methods and compositions are described for the preparation of piezoelectric ceramic-polymer composites having improved properties for application in piezoelectric devices. These composites consist of piezoelectric particles embedded in a polymer matrix. The improvements of this invention result from discoveries of the effects of particle size, particle size dispersity, volumetric loading levels, ceramic dielectric constant, and polymer dielectric constant on performance. Various improved devices based on these compositions are also described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.