Title :
Acoustic and electromechanical behavior of 1-3 piezocomposites for ultrasonic transducer applications
Author :
Zhang, Q.M. ; Geng, Xuecang
Author_Institution :
Mater. Res. Lab., Pennsylvania State Univ., University Park, PA, USA
Abstract :
A model is derived for the analysis of the dynamic behavior of 1-3 piezocomposites. Based on this model, the effective parameters and their dependence on the aspect ratio of the unit cell of a 1-3 composite, can be evaluated. From the model we show that the mechanical quality factor of a composite can be lower than that of both the ceramic and polymer. The predictions are compared with experimental results and the agreement between the two is quite satisfactory
Keywords :
Q-factor; electromechanical effects; filled polymers; piezoceramics; ultrasonic propagation; 1-3 composite; 1-3 piezocomposites; acoustic behavior; aspect ratio; ceramic; dynamic behavior; electromechanical behavior; mechanical quality factor; polymer; ultrasonic transducer applications; unit cell; Acoustic applications; Bioceramics; Capacitive sensors; Composite materials; Equations; Mechanical factors; Piezoelectric materials; Polymers; Resonance; Ultrasonic transducers;
Conference_Titel :
Ultrasonics Symposium, 1997. Proceedings., 1997 IEEE
Conference_Location :
Toronto, Ont.
Print_ISBN :
0-7803-4153-8
DOI :
10.1109/ULTSYM.1997.663083
