What are losses in piezoelectrics?

Losses in piezoelectrics are considered in general to have three different mechanisms: dielectric, mechanical, and piezoelectric losses. This paper deals with the phenomenology of losses first, then how to measure these losses separately in experiments.

What are the three loss origins of piezoelectrics?

(1) There are three loss origins in piezoelectrics: the dielectric, elastic, and piezoelectric losses. The 180° and non-180° domain wall motions contribute primarily to the extensive dielectric and elastic losses, respectively.

Are piezoelectric losses a key factor for reducing heat generation?

In particular, recent discoveries by our group show that piezoelectric losses are key factors for reducing heat generation in lead zirconate titanate (PZT)-based piezoelectric resonators with antiresonance operation [ 3 ]. The purpose of this paper is to review the determination methodologies of the loss factors of piezoelectric materials.

Do piezoelectric materials have loss determination techniques?

The purpose of this review is to introduce several loss determination techniques for piezoelectric materials. The review starts with brief discussions of the loss factors and of the importance of piezoelectric loss that is related to the antiresonance frequency.

What are the three types of loss factors in a piezoelectric device?

Three types of losses (dielectric, elastic, and piezoelectric) are known to be related to the heat dissipation mechanism of piezoelectric materials, therefore obtaining accurate values of the loss factors is essential for minimizing the heat dissipation of piezoelectric devices.

Is intensive piezoelectric loss larger than dielectric and elastic loss?

It is worth noting that the intensive piezoelectric loss is larger than the average of the dielectric and elastic intensive losses in Pb-contained piezoceramics.