| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advances in Ceramic Materials and Processing
|
| Presentation Title |
Synthesis and Dielectric Properties of BaTiO3 Solid Solutions Co-Doped with La3+ and Bi3+ |
| Author(s) |
María Inés Valenzuela Carrillo, Nely Esmeralda Hernández Pérez, Miguel Pérez Labra, Francisco Raúl Barrientos Hernandez, José Antonio Romero Serrano, Martín Reyes Pérez, Alejandro Cruz Ramírez, Julio César Juárez Tapia |
| On-Site Speaker (Planned) |
María Inés Valenzuela Carrillo |
| Abstract Scope |
Pure and doped barium titanate powders were prepared via ball milling using Barium Carbonate (BaCO3), Titanium Oxide (TiO2), Lanthanum Oxide (La2O3), and Bismuth Oxide (Bi2O3). Stoichiometric calculations followed the formula Ba1-3xLa2xTi1-3xBi4xO3, with varying x concentrations (0.000, 0.0015, 0.0025, and 0.0035 mol%). The powders were mixed with zirconia oxide balls (2.95 mm, 5.05 mm, 6.48 mm) for 6 hours, then dried and sintered at 1200°C for 5 hours (heating rate: 4°C/min). X-ray diffraction (XRD) confirmed the formation of tetragonal BaTiO3 phase (JCPDS 961525438) across all compositions. Dielectric properties were measured using an LCR meter at 100 Hz and temperatures from 30°C to 400°C. The undoped BaTiO3 (x=0.0) exhibited a Curie temperature of 110°C and a dielectric constant of 2902. The highest dielectric constant (3665) was observed at x = 0.0025, with a Curie temperature of 105°C. These results indicate that doping concentration influences dielectric properties. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Ceramics, Characterization, Powder Materials |