| About this Abstract |
| Meeting |
2024 TMS Annual Meeting & Exhibition
|
| Symposium
|
Characterization of Minerals, Metals and Materials 2024: Process-Structure-Property Relations and New Technologies
|
| Presentation Title |
Obtaining Ferroelectric Tetragonal Phase Type Ba1-3xLa2xTi1-3xBi4xO3 (0 ≥ x ≤ 0.0075) Using the Mechanical Grinding Method |
| Author(s) |
María Inés Valenzuela Carrillo, Miguel Pérez Labra, Francisco Raúl Barrientos Hernández, Ricardo Martínez López, Martín Reyes Pérez |
| On-Site Speaker (Planned) |
María Inés Valenzuela Carrillo |
| Abstract Scope |
Pure and doped barium titanate powders were prepared by the ball milling method starting from Barium Carbonate (BaCO3, 99.0%), Titanium Oxide (TiO2, 99.0%), Lanthanum Oxide (La2O3, 99.9%) and Bismuth Oxide (Bi2O3,99.999%). The stoichiometric calculations were made using the Ba1-3xLa2xTi1-3xBi4xO3 mechanism with the concentrations x= 0.000, 0.0025, 0.005, and 0.0075. The powders were ground in a ball mill with zirconia oxide balls of three different diameter sizes (2.95 mm, 5.05 mm, and 6.48 mm) for 6 h and dried. The powders were sintered at 1200°C for 5 h; the heating rate used was 4°C/min. The structural evolution of the samples was characterized by X-ray diffraction (XRD) and Rietveld refinement. The analysis of XRD patterns revealed the formation of ferroelectric tetragonal phase BaTiO3 for the compositions x= 0.0, 0.0025, and 0.005, and the beginning of a tetragonal to cubic phase transition was observed for the composition x = 0.0075. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Ceramics, Characterization, Powder Materials |