Analysis of thermal processes in piezoceramic actuator

Autor:	T. V. Kharitonova, V. K. Kazakov, A. V. Dobrynin
Rok vydání:	2010
Předmět:	Materials science Electric breakdown Allowance (engineering) Condensed Matter Physics Exfoliation joint Piezoelectricity Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials visual_art Thermal visual_art.visual_art_medium Ceramic Composite material Actuator
Zdroj:	Semiconductors. 44:1689-1693
ISSN:	1090-6479 1063-7826
DOI:	10.1134/s1063782610130142
Popis:	An analytical expression has been derived to calculate the temperature in the bulk of a piezoelectric cell and on its surface with allowance made for the distributed heat release. It is experimentally shown that the temperature at the center of actuator exceeds the temperature on its surface by 10–40°C and reaches 50–140°C under specific loads of 50–100 W/cm3. The reason for this is that up to 25–45% of the supplied energy is transformed into heat. It is established that the main cause of actuator failure is electric breakdown and exfoliation of passive ceramic layers.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::e31b4d6389d24273d0827569b89942e0 https://doi.org/10.1134/s1063782610130142 Zobrazit plný text záznamu Plný text ve formátu PDF