Crystallographic X-ray Diffraction Study on Thermal Phase Transformation of Barium Titanate

Document Type : Original Article

Authors

1 Physics Department, Faculty of Science, Helwan University, 11792 Cairo, Egypt.

2 Solid State Physics Department, Physics Research Institute, National Research Centre, 33 El- Bohouth St., 12622 Dokki, Giza, Egypt.

Abstract

BaTiO3 exhibits several phases. Due to its exceptional ferroelectric and dielectric characteristics, Barium titanate (BaTiO3) has received a lot of interest. In the current study, X-ray diffraction method was used to investigate the phase transition and structural stability of BaTiO3 in temperature range of 30-700 oC. The behaviour of phase transformation and lattice parameters of the BaTiO3 were established by Rietveld refinement. At 100 oC, transformation to cubic phase starts and remains cubic up to 700 oC. Additionally, tetragonal to cubic transformation was accomplished by a decrease of tetragonality at 125 oC.

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Volume 65, Issue 13 - Serial Number 13
Special Issue: Chemistry and Global Challenges
December 2022
  • Receive Date: 04 September 2022
  • Revise Date: 14 September 2022
  • Accept Date: 25 September 2022
  • First Publish Date: 25 September 2022