• Journal of Advanced Dielectrics
  • Vol. 14, Issue 6, 2450002 (2024)
D. Yu. Fedulov, K. E. Kamentsev, A. A. Bush*, and V. I. Kozlov
Author Affiliations
  • Research Institute of Solid-State Electronics Materials,MIREA - Russian Technological University,Vernadskogo Avenue 78,119454,Moscow,Russia
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    DOI: 10.1142/S2010135X24500024 Cite this Article
    D. Yu. Fedulov, K. E. Kamentsev, A. A. Bush, V. I. Kozlov. Synthesis,X-ray diffraction and dielectric studies of the ceramic samples (1x)BaTiO3xPbFe2/3W1/3O3 (0x1) system[J]. Journal of Advanced Dielectrics, 2024, 14(6): 2450002 Copy Citation Text show less

    Abstract

    Ceramic samples of the (1x)BaTiO3xPbFe2/3W1/3O3,0x1 ((1x)BT⋅xPFW) system were synthesized by solid-state reactions method. The samples were characterized by X-ray diffraction (XRD) and dielectric studies,as well as by the measurements of the thermally stimulated depolarization currents (TSDC). It was found that the predominant phase in the samples is presented by the (Ba1xPbx)(Ti1xFe2x/3Wx/3)O3 solid solutions with a perovskite structure,herewith the samples with 0x<0.25 are practically single-phase,and with 0.25x<1 contain the impurity phase BaWO4 (up to 15 mass.% at x=0.60–0.90). Information has been obtained about the changes in the structural and dielectric characteristics of the solid solutions with the change of their composition. It is established that the solid solutions crystal lattice symmetry at 296 K changes from tetragonal at x0.04 to cubic at x0.05. An increase in the PFW content in solid solutions causes a gradual change in their properties from ferroelectric at 0x<0.10 to relaxor ferroelectric at 0.10x0.25,and then to properties similar to those of the dipole glass with weak or zero correlation between dipoles at 0.25<x0.90. The addition of BT to PFW leads to rather quick degradation of the relaxor ferroelectric properties of PFW in the region x=0.9–1.0.
    D. Yu. Fedulov, K. E. Kamentsev, A. A. Bush, V. I. Kozlov. Synthesis,X-ray diffraction and dielectric studies of the ceramic samples (1x)BaTiO3xPbFe2/3W1/3O3 (0x1) system[J]. Journal of Advanced Dielectrics, 2024, 14(6): 2450002
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