| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1484840 | Journal of Non-Crystalline Solids | 2007 | 6 Pages |
Abstract
Barium titanate ceramic powders have been incorporated in polyamide 11 to form homogeneous dispersion of particles in the matrix. Barium titanate/polyamide 11 nanocomposites have been synthesized using a solvent casting method with ultrasonic stirring to homogeneously disperse inclusions in the matrix. Composites with volume fraction of barium titanate Ï ranging from 0.01 to 0.4 were elaborated. Films were fabricated using a hot press method. Only the inclusions were poled in the matrix to form a ferroelectric particles/unpoled matrix composite. Interactions between the particles and the matrix, pyroelectric and piezoelectric response were studied as a function of Ï by dynamic dielectric spectroscopy. Composites show interesting pyro-piezoelectric activity. Pyroelectric merit factor increases linearly and it reaches a limit value of 0.3 for a volume fraction ÏÂ =Â 0.1.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Jean-Fabien Capsal, Eric Dantras, Jany Dandurand, Colette Lacabanne,