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1-3 piezoelectric composites for high-temperature transducer applications

Journal Article


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Abstract


  • High-temperature Pb(Zr,Ti)O3/epoxy 1-3 composites were fabricated using the dice and fill method. The epoxy filler was modified with glass spheres in order to improve the thermal reliability of the composites at elevated temperatures. Temperature-dependent dielectric and electromechanical properties of the composites were measured after ageing at 250 °C with different dwelling times. Obvious cracks were observed and the electrodes were damaged in the composite with unmodified epoxy after 200 h, leading to the failure of the composite. In contrast, composites with >12 vol% glass sphere loaded epoxies were found to exhibit minimal electrical property variation after ageing for 500 h, with dielectric permittivity, piezoelectric coefficient and electromechanical coupling being on the order of 940, 310 pC N-1 and 57%, respectively. This is due to the improved thermal expansion behaviour of the modified filler. © 2013 IOP Publishing Ltd.

UOW Authors


  •   Li, Lili (external author)
  •   Zhang, Shujun
  •   Xu, Zhuo (external author)
  •   Wen, Fei (external author)
  •   Geng, Xuecang (external author)
  •   Lee, Hyeong Jae. (external author)
  •   Shrout, Thomas R. (external author)

Publication Date


  • 2013

Citation


  • Li, L., Zhang, S., Xu, Z., Wen, F., Geng, X., Lee, H. Jae. & Shrout, T. R. (2013). 1-3 piezoelectric composites for high-temperature transducer applications. Journal of Physics D: Applied Physics, 46 (16), 165306-1-165306-6.

Scopus Eid


  • 2-s2.0-84875840734

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=2977&context=aiimpapers

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/1975

Has Global Citation Frequency


Start Page


  • 165306-1

End Page


  • 165306-6

Volume


  • 46

Issue


  • 16

Place Of Publication


  • United Kingdom

Abstract


  • High-temperature Pb(Zr,Ti)O3/epoxy 1-3 composites were fabricated using the dice and fill method. The epoxy filler was modified with glass spheres in order to improve the thermal reliability of the composites at elevated temperatures. Temperature-dependent dielectric and electromechanical properties of the composites were measured after ageing at 250 °C with different dwelling times. Obvious cracks were observed and the electrodes were damaged in the composite with unmodified epoxy after 200 h, leading to the failure of the composite. In contrast, composites with >12 vol% glass sphere loaded epoxies were found to exhibit minimal electrical property variation after ageing for 500 h, with dielectric permittivity, piezoelectric coefficient and electromechanical coupling being on the order of 940, 310 pC N-1 and 57%, respectively. This is due to the improved thermal expansion behaviour of the modified filler. © 2013 IOP Publishing Ltd.

UOW Authors


  •   Li, Lili (external author)
  •   Zhang, Shujun
  •   Xu, Zhuo (external author)
  •   Wen, Fei (external author)
  •   Geng, Xuecang (external author)
  •   Lee, Hyeong Jae. (external author)
  •   Shrout, Thomas R. (external author)

Publication Date


  • 2013

Citation


  • Li, L., Zhang, S., Xu, Z., Wen, F., Geng, X., Lee, H. Jae. & Shrout, T. R. (2013). 1-3 piezoelectric composites for high-temperature transducer applications. Journal of Physics D: Applied Physics, 46 (16), 165306-1-165306-6.

Scopus Eid


  • 2-s2.0-84875840734

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=2977&context=aiimpapers

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/1975

Has Global Citation Frequency


Start Page


  • 165306-1

End Page


  • 165306-6

Volume


  • 46

Issue


  • 16

Place Of Publication


  • United Kingdom