PhD-Level Ultrasonic Engineering • Medical • Manufacturing • Consumer
Blog Layout
Piezo Fundamentals: Two origins of piezoelectricity
Husain Shekhani • August 16, 2021
What factors contribute to piezoelectricity? YouTube link: https://youtu.be/-ynVKJkFKsE
In this post, I am sharing a video I've made for explaining the two origins of piezoelectricity. Simply put, they are:
- Unit cell contributions
- Originate from non-symmetric structure of the piezoelectric crystal
- Domain wall motion
- Domains are "sub-lattices" in a crystal. The movement of different domains interfaces or "domain wall" adds a significant contribution to piezoelectric material properties. This is especially true in PZT materials