Electromechanical coupling factor of electrostrictive P(VDF-TrFE) copolymer

Author

Xu, T.-B. ; Cheng, Z.-Y. ; Mai, T. ; Lu, Yu ; Zhang, Q.M.

Author_Institution

Dept. of Electr. Eng., Pennsylvania State Univ., University Park, PA, USA

Volume

2

fYear

2000

fDate

36800

Firstpage

997

Abstract

Electromechanical coupling factors of the high energy electron irradiated poly(vinylidene fluoride-trifluoroethylene) (P(VDF-TrFE)) copolymer are characterized at the quasi-static (1 Hz) and high frequency resonance states. It is found that the transverse electromechanical coupling factor k₃₁ of this material can reach more than 0.45. Furthermore, the result obtained from the resonance method is comparable to that from the quasi-static method

Keywords

dielectric losses; electric impedance; electron beam effects; electrostriction; ferroelectric materials; intelligent materials; permittivity; polymer blends; capacitance; dielectric loss; electric impedance; electromechanical coupling factor; electrostrictive P(VDF-TrFE) copolymer; high energy electron irradiated; high frequency resonance state; permittivity; polarization field relation; quasi-static state; relaxor ferroelectric; smart materials; transverse coupling factor; Ceramics; Coupling circuits; Electrons; Electrostriction; Ferroelectric materials; Impedance measurement; Polymers; Resonance; Shape control; Temperature;

fLanguage

English

Publisher

ieee

Conference_Titel

Ultrasonics Symposium, 2000 IEEE

Conference_Location

San Juan

ISSN

1051-0117

Print_ISBN

0-7803-6365-5

Type

conf

DOI

10.1109/ULTSYM.2000.921492

Filename

921492