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In this study, pure and La3+/Bi3+ co-doped BaTiO3BaTiO3 powders were synthesized via ball milling followed by thermal treatment. High-purity BaCO3, TiO2, La2O3, and Bi2O3 precursors were used, and stoichiometric calculations were based on the Ba1−3xLa2xTi1−3xBi4xO3 formula, with concentrations of x = 0.000, 0.005, 0.010, and 0.050. Structural characterizationCharacterization was performed using X-ray diffraction and Rietveld refinement, while morphological analysis was conducted by scanning electron microscopyScanning Electron Microscopy (SEM). The XRDX-Ray Diffraction (XRD) and refinement results revealed a tetragonal-to-cubicCubic phase transition at x = 0.010, and the formation of a BaBiO3 secondary phase at x = 0.050, indicating the solubilitySolubility limit of the dopants. ThermodynamicThermodynamic simulationsSimulation were carried out to evaluate the phase evolution of the precursor mixtures as a function of temperatureTemperature.

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Synthesis, Structural Characterization, and Thermodynamic Simulation of La3+/Bi3+-Doped BaTiO3

  • 会议论文

  • 发表日期：

    2026年

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  • M. I. Valenzuela-Carrillo,
  • M. Pérez-Labra,
  • A. Hernández Ramírez,
  • J. A. Romero-Serrano,
  • J. J. López-Rodriguez,
  • I. Mendoza-Sánchez,
  • M. Reyes-Pérez,
  • F. R. Barrientos-Hernández,
  • E. D. German-Magaldi

摘要

In this study, pure and La3+/Bi3+ co-doped BaTiO3BaTiO3 powders were synthesized via ball milling followed by thermal treatment. High-purity BaCO3, TiO2, La2O3, and Bi2O3 precursors were used, and stoichiometric calculations were based on the Ba1−3xLa2xTi1−3xBi4xO3 formula, with concentrations of x = 0.000, 0.005, 0.010, and 0.050. Structural characterizationCharacterization was performed using X-ray diffraction and Rietveld refinement, while morphological analysis was conducted by scanning electron microscopyScanning Electron Microscopy (SEM). The XRDX-Ray Diffraction (XRD) and refinement results revealed a tetragonal-to-cubicCubic phase transition at x = 0.010, and the formation of a BaBiO3 secondary phase at x = 0.050, indicating the solubilitySolubility limit of the dopants. ThermodynamicThermodynamic simulationsSimulation were carried out to evaluate the phase evolution of the precursor mixtures as a function of temperatureTemperature.