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Meeting 2026 TMS Annual Meeting & Exhibition
Symposium Advances in Ceramic Materials and Processing
Presentation Title Influence of In3+ doping on the structure of In-doped BaTiO3 ceramics manufactured by mechanical grinding and heat treatment
Author(s) I. Mendoza-Sánchez, D. P. Herrera-Flores, M. Perez-Labra, F. R. Barrientos-Hernández , J. A. Romero-Serrano , M. Reyes-Pérez , M. U. Flores-Guerrero , V. E. Reyes-Cruz , J. C. Juarez-Tapia
On-Site Speaker (Planned) I. Mendoza-Sánchez
Abstract Scope The structural evolution of Ba1-xInxTi1-x/4O3 (x = 0.0, 0.001, 0.005, and 0.01 In3+ wt.%) solid solutions was systematically analyzed. Precursor powders were mechanically milled for 6 hours using zirconia balls and sintered at 12500 °C for 5 hours at a rate of 4 °C/min. XRD confirmed the presence of the ferroelectric tetragonal BaTiO3 phase in all samples. Rietveld refinement showed increasing a = b parameters and decreasing c parameter with higher In3+ content, indicating a reduced tetragonality ratio (c/a). All doped compositions exhibited an average unit cell volume of 64.32 Ĺ3, similar to the undoped sample. The highest theoretical density (6.313 g/cm3) was found for x = 0.001, decreasing with more dopant. Crystallite size dropped to 58.39 nm for x = 0.001, then increased to 111.4 nm for x = 0.01. These results suggest that low In3+ concentrations enhance the microstructural characteristics of BaTiO3, potentially improving its ferroelectric properties.
Proceedings Inclusion? Planned:
Keywords Other, Other, Other

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