Propagation of shear horizontal waves in laminated composites based on differently orientated poled 0.72Pb(Mg1/3Nb2/3)O 3-0.28PbTiO3 single crystals

Yu Ling Wang, Rui Zhang, En Wei Sun, Wei Song, Wenwu Cao

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Abstract

The propagation characteristics of shear horizontal waves in [001] c, [011]c and [111]c direction polarized 0.72Pb (Mg1/3Nb2/3) O3-0.28PbTiO3 (PMN-0.28PT) piezoelectric single crystals/polymer periodic laminated composites are studied by using the global matrix method. The numerical results show that the piezoelectric effect has a significant influence on the bandgap width of the composite structure containing [011]c and [111]c poled PMN-0.28PT, but little effect on the band structure of the system containing [001]c poled single crystal. In addition, the first bandgap (FBG) width of the composite structure depends strongly on the poling directions when the filling fraction of PMN-0.28PT is larger than 0.5, and its FBG starting frequency displays no distinct difference among the three polarization directions at all filling fractions. The reported results provide valuable guidelines for designing filters and transducers made of composite structures containing relaxor-based ferroelectric single crystals.

Original languageEnglish (US)
Article number096301
JournalChinese Physics Letters
Volume30
Issue number9
DOIs
StatePublished - Sep 1 2013

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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