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Heat Generation in Multilayer Piezoelectric Actuators
Author(s) -
Zheng Jiehui,
Takahashi Sadayuki,
Yoshikawa Shoko,
Uchino Kenji,
Vries J. W. C.
Publication year - 1996
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.1996.tb08095.x
Subject(s) - piezoelectricity , materials science , actuator , heat generation , hysteresis , ferroelectricity , stress (linguistics) , reliability (semiconductor) , composite material , electricity generation , power (physics) , mechanical engineering , optoelectronics , electrical engineering , condensed matter physics , thermodynamics , engineering , linguistics , philosophy , physics , dielectric
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.