This article describes the processing and characterisation of lanthanum-doped lead zirconate titanate (PLZT)-based ferroelectric fibres for composite transducer applications. X-ray diffraction of the extruded and sintered fibres indicated some lead loss during sintering; however, the fibres exhibited low porosity (1.54%), high maximum piezoelectric strain (4041ppm) and relatively low coercive field (0.77kV/mm). The low coercive field of the lanthanum-doped fibres may be advantageous in terms of facilitating polarization of the fibres in composite architectures.
Clemens, F., Comyn, T., Heiber, J., Nobre, F., Dent, A. C. E., & Bowen, C. R. (2011). Processing and electromechanical properties of lanthanum-doped Pb(Zr,Ti)O3 extruded piezoelectric fibres. Journal of Materials Science, 46(13), 4517-4523. https://doi.org/10.1007/s10853-011-5345-7