Investigations on Microstructural and Raman Scattering Properties of B2O3 Doped Ba(Ti1-xZrx)O3 Ceramics


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Öksüz K. E. , Şen Ş., Şen U.

Chemistry Research Journal , cilt.3, ss.71-75, 2018 (Diğer Kurumların Hakemli Dergileri)

  • Cilt numarası: 3 Konu: 6
  • Basım Tarihi: 2018
  • Dergi Adı: Chemistry Research Journal
  • Sayfa Sayıları: ss.71-75

Özet

t 0.5 wt. % B2O3–doped Ba(Ti1-xZrx)O3, (x=0-0.4) lead-free ceramics were synthesized using the solid-state reaction method by adopting the ball milling technique. The influence of the substitution content on crystallographic structure, phase transition, microstructure and sintering behavior of BT and BZT ceramics were investigated. XRD analysis at room temperature revealed a structural transformation from tetragonal to rhombohedral with enhancement of ZrO2 content in the barium titanate matrix. The scanning electron microscope and energy-dispersive X-ray spectroscopy was used to investigate the microstructure and surface morphology of the sintered samples. The evolution of the Raman spectra was studied for various compositions, and the spectroscopic signature of the corresponding phase was determined. Scanning Electron Microscope observations revealed enhanced microstructural uniformity and retarded grain growth with increasing Zr content. Keywords BaTiO3, Barium-titanate-zirconate, ceramics, Raman spectroscopy