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Aging of piezoelectric composite transducers

Barzegar, A ; Sharif University of Technology | 2001

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  1. Type of Document: Article
  2. DOI: 10.1063/1.1339853
  3. Publisher: 2001
  4. Abstract:
  5. The effect of aging on some piezoelectric properties, including d33, K33, and d33g33 in 1-3 composite transducers has been evaluated in this article. The spontaneous changes of properties of piezocomposites (lead zirconate titanate/epoxy) and piezoceramic under zero external stress was measured at 5 days and 500 days after poling. The results show that the aging behavior in piezoelectric composites is very much dependent on the ceramic content. The composite material behaves similar to a piezoceramic at high volume fraction of ceramic, i.e., greater than 25 vol. %. At low volume fraction of ceramic, however, the rate of aging is much higher in piezoelectric composite compared to that of the piezoceramic. At lower than 25 vol. % of ceramic, it was seen that the aging rate increases with decreasing the ceramic content. © 2001 American Institute of Physics
  6. Keywords:
  8. Source: Journal of Applied Physics ; Volume 89, Issue 4 , 2001 , Pages 2322-2326 ; 00218979 (ISSN)
  9. URL: https://aip.scitation.org/doi/10.1063/1.1339853