| Title |
Fabrication and Electrical Properties of Piezoceramics PZT-Polymer 1-3-0 Type Composite |
| Authors |
손무헌(Shon, Mu-Hun) ; 최헌일(Choi, Hun-Il) ; 사공건(Sa, Gong-Geon) |
| Keywords |
습식-건식법 ; 복합압전체 ; 기계적품질계수 ; 음향임피던스 Wet-Dry Combination Method ; 1-3-0 Composites ; Mechanical Quality Factor ; Acoustic Impedance |
| Abstract |
In this study, the piezoelectric ceramics PZT powders were synthesized by Wet-Dry combination method. And the flexible 1-3-0 type composites were favricated with piezoceramic PZT and Eccogel polymer matrix embedded 3rd phase. Dielectric constant of 1-3-0 type composites was lower than that of single phase PZT ceramics. Thickness mode coupling factor k_t which was comparable with single phase PZT ceramics, and Mechanical Quality factor Q_m were about 0.65 and 6 respectively. These composites are considered as a good candidates for broad-band type transducer applications. The acoustic impedance for 1-3-0 type composites was lower than that of single phase PZT ceramics. Therefore, these composites would be better used for hydrophone applications. |