Functionally graded piezoelectric materials for modal transducers for exciting bulk and surface acoustic waves

2008 ◽  
Vol 55 (7) ◽  
pp. 1555-1558 ◽  
Author(s):  
Jiashi Yang ◽  
Zhihe Jin ◽  
Jiangyu Li
Keyword(s):  
Acoustic Waves ◽  
Piezoelectric Materials ◽  
Surface Acoustic Waves ◽  
Functionally Graded ◽  
Functionally Graded Piezoelectric Materials ◽  
Functionally Graded Piezoelectric

scholarly journals Peculiarities of surface acoustic waves, propagation in structures with functionally graded piezoelectric materials, coating from different ceramics on the basis of PZT

2020 ◽  
Vol 10 (01n02) ◽  
pp. 2060017
Author(s):  
T. I. Belyankova ◽  
E. I. Vorovich ◽  
V. V. Kalinchuk ◽  
O. M. Tukodova
Keyword(s):  
Acoustic Waves ◽  
Piezoelectric Materials ◽  
Surface Acoustic Waves ◽  
Functionally Graded ◽  
Ferroelectric Ceramics ◽  
Physical Parameters ◽  
Coating Materials ◽  
Homogeneous Half Space ◽  
Functionally Graded Piezoelectric Materials ◽  
Piezoelectric Structure

A model of a piezoelectric structure with an inhomogeneous coating is considered. The structure is a homogeneous half-space made of PZT-5H ferroelectric ceramics with a functionally graded coating. The properties of coating vary continuously in thickness from parameters of one material to parameters of another material in a continuously nonmonotonic or piecewise-continuous manner. As coating materials, various combinations of ceramics of different stiffness based on PZT are considered. Using the example of the problem of the propagation of sh-waves in a piezoelectric structure, we studied the influence of the ratio of the physical parameters of the coating materials, the localization region, and the size of the transition zone of one material to another on the propagation features of surface acoustic waves (SAWs) and the structure of the wave field.

Sign in / Sign up

Export Citation Format

Share Document