Doped piezoceramic lead zircanate titanate has been characterized in the frequency range of 20-60 MHz using ultrasonic spectroscopy. Theoretical analyses were performed for the reflection and refraction of acoustic waves at the interface of water-piezoelectric ceramic. The incident directions of the wave were chosen to be appropriate for ultrasonic spectroscopy measurements. Shear wave spectrum was obtained through mode conversion using a pair of longitudinal transducers submerged in water. The phase velocity shows linear dependence on frequency while the attenuation may be described by a second order polynomial of frequency in the frequency range investigated. The Kramers-Kronig relation between ultrasonic phase velocity and attenuation was compared to measured results.
All Science Journal Classification (ASJC) codes
- Physics and Astronomy(all)