Heat Generation in Multilayer Piezoelectric Actuators

Abstract

Multilayer piezoelectric actuators when driven under high frequency, generate significant heat, which influences the reliability and other piezoelectric properties. In this paper, heat generation in various types of multilayer PZT‐based actuators was studied. Experimental results showed that heat generation is mainly caused by ferroelectric hysteresis loss in the stress‐free state. A simplified analytic method was established to evaluate the temperature rise, which is useful for the design of multilayer and other high‐power actuators.

Domain switching energies: Mechanical versus electrical loading in La-doped bismuth ferrite–lead titanate

“…poling at various electric field amplitudes. 33 The results elucidate the influence of the tetragonal distortion on non-180 domain switching and energy dissipation of the tetragonal phase in MPB compositions.…”

Investigation of Elevated Temperature Effects on Multiple Layer Piezoelectric Ultrasonic Transducers with Adhesive Bondlines by Self-Heating

“…The stable temperature rise increases with the enhanced electric fields for all the piezoelectric ultrasonic transducers. The time-temperature behaviour of a piezoelectric device can be described by Equation (8) (Zheng et al, 1996) …”

“…These structures are free of adhesive bondlines subjected to tensile stress because adhesive bonds have low thermal conductivity, low Q m value, and low www.intechopen.com Investigation of elevated temperature effects on multiple layer piezoelectric ultrasonic transducers with adhesive bondlines by self-heating 25 maximum operating temperature. Different aspects such as loss effect, temperature rise, and self-heating mechanisms of piezoelectric devices have been studied on this topic, both on practical experiments (Robertson & Cochran, 2002;Dubus et al, 2002;Wehrsdorfer et al, 1995;Zheng et al, 1996) and theoretical analyses (Wang et al, 1996;Flint et al, 1995;Ye & Sun, 1997). Heat generation in various types of multilayer PZT-based actuators was reported in 1996 and a simplified analytic method to evaluate the temperature rise was also developed (Zheng et al, 1996).…”

“…Different aspects such as loss effect, temperature rise, and self-heating mechanisms of piezoelectric devices have been studied on this topic, both on practical experiments (Robertson & Cochran, 2002;Dubus et al, 2002;Wehrsdorfer et al, 1995;Zheng et al, 1996) and theoretical analyses (Wang et al, 1996;Flint et al, 1995;Ye & Sun, 1997). Heat generation in various types of multilayer PZT-based actuators was reported in 1996 and a simplified analytic method to evaluate the temperature rise was also developed (Zheng et al, 1996). The phenomenology of mechanical, piezoelectric and dielectric losses was analyzed in 2001 (Uchino & Hirose, 2001).…”

“…Generally, however, it is still difficult to accurately simulate the thermal property of multilayer piezoelectric devices for their complicated structural and material behaviors under dynamic excitation conditions. Experimental investigations into the dynamic and thermal properties of several Langevin/Tonpilz structures have been conducted from different aspects (Ochi et al, 1985;Yao et al, 2000;Zheng et al, 1996;Dubus et al, 2002;Pritchard et al, 2004). For such typical multilayer piezoelectric devices, the frequency bandwidth under high level dynamic conditions is seriously limited.…”