Magnetic and Piezoelectric Properties of the Fe³⁺ Doped PLZT Electroceramics

Abstract:

For the growing interest in developing of more attractive multiferroic and magnetoelectric ceramics an alternative is a double-doped Pb(Zr1-_xTi_x)O₃- material with trivalent lanthanum and iron ions. Such material has a structure based on ABO₃ perovskite and properties depending on the chemical and structural composition. In the present work the results of the preparation and characterization of Fe³⁺- modified 9/65/35 PLZT ceramics have been reported. Two samples of Pb_0,91(La_1-zFe_z)_0,09(Zr_0,65Ti_0,35)_0,9775O₃ ceramics, for different Fe ions concentration (z = 0,0 and 0,5 at.%), were prepared from the MOM derived powders and sintered by the hot uniaxial pressing methods. To analyze the obtained ceramics properties the XRD, SEM and also application oriented dielectric and magnetic measurements were performed. The Fe³⁺ substitution at the La-site of PLZT has shown many interesting and unusual dielectric, piezoelectric and magnetic properties. The obtained material was proposed to implement into Piezoelectric Transformer structure to change gain characteristics proportionally to magnetic field intensity.

• Periodical: Materials Science Forum (Volumes 730-732)
• Pages: 117-122
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.730-732.117
• Online since: November 2012
• Authors: Lucjan Kozielski, M. Płońska
• Keywords: Multiferroic, Piezoelectric Transformer, PLFZT Ceramics

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