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Mechanical and electromechanical properties of piezoelectric ceramic fibers drawn by the alginate gelation method
Author(s) -
MensurAlkoy Ebru,
Kaya Mustafa Yunus,
Sarı Huseyin Alptekin,
Pekel Ozan,
Olukkent Recep,
Tur Yahya K.,
Sebastian Tutu,
Clemens Frank J.,
Alkoy Sedat
Publication year - 2019
Publication title -
international journal of applied ceramic technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.4
H-Index - 57
eISSN - 1744-7402
pISSN - 1546-542X
DOI - 10.1111/ijac.13405
Subject(s) - materials science , piezoelectricity , composite material , ceramic , dielectric , electric field , fiber , electromechanical coupling coefficient , piezoelectric coefficient , polarization (electrochemistry) , optoelectronics , chemistry , physics , quantum mechanics
Piezoelectric ceramic fibers are widely used in piezocomposite devices. The various methods that are used to draw ceramic fibers differ in the way the fiber form is obtained, which in return closely affects the density, uniformity and the properties of the fibers that are obtained at the end. In this study, the processing‐property relationship in the piezoceramic fibers drawn using the alginate gelation method is investigated, with a focus on the mechanical and electrical properties of individual fibers. Fibers with a Weibull strength of 65.3 MPa, remanent polarization of 22 μC/cm 2 and a total bipolar field induced strain of 0.25% under an electric field of 2.5 kV/mm, piezoelectric coefficient of 300 pm/V and dielectric constant of 3323 were produced. 1‐3 piezocomposite devices prepared from these fibers had a 6 dB higher free‐field voltage sensitivity and a 50% wider bandwidth compared to a solid disk transducer of the same dimensions.