| Full text | |
| Author(s): |
Miranda Jr, E. J. P.
;
Dos Santos, J. M. C.
Total Authors: 2
|
| Document type: | Journal article |
| Source: | PHYSICA B-CONDENSED MATTER; v. 631, p. 7-pg., 2022-04-15. |
| Abstract | |
The unit cell wave attenuation of elastic Bloch waves in 1-3 piezoelectric phononic structures with BaTiO3 inclusions in a polymeric matrix is reported. This attenuation can be observed by the evanescent Bloch waves in the complex dispersion diagram of the periodic piezoelectric ceramic structure. Full and complete Bragg-type band gaps are observed. The piezoelectricity of the periodic lead-free ceramic inclusions improves the band gap width and wave attenuation in a specific frequency spectrum. These characteristics can be used for the wave attenuation design using smart periodic structures, for surface acoustic wave (SAW) filter and 1-3 piezocomposite transducer design using piezoelectric phononic structures with BaTiO3 inclusions. (AU) | |
| FAPESP's process: | 18/15894-0 - Periodic structure design and optimization for enhanced vibroacoustic performance: ENVIBRO |
| Grantee: | Carlos de Marqui Junior |
| Support Opportunities: | Research Projects - Thematic Grants |