Artículo
Structural, Vibrational, and Magnetic Characterization of Orthoferrite LaFeO3 Ceramic Prepared by Reaction Flash Sintering
Autor/es | Manchón Gordón, Alejandro F.
Sánchez Jiménez, Pedro Enrique Blázquez Gámez, Javier Sebastián Perejón Pazo, Antonio Pérez Maqueda, Luis A. |
Departamento | Universidad de Sevilla. Departamento de Química Inorgánica Universidad de Sevilla. Departamento de Física de la Materia Condensada |
Fecha de publicación | 2023 |
Fecha de depósito | 2023-05-25 |
Publicado en |
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Resumen | LaFeO3 perovskite ceramics have been prepared via reaction flash technique using Fe2O3 and La2O3 as precursors. The obtained pellets have been investigated using several techniques. The formation of LaFeO3 has been clearly ... LaFeO3 perovskite ceramics have been prepared via reaction flash technique using Fe2O3 and La2O3 as precursors. The obtained pellets have been investigated using several techniques. The formation of LaFeO3 has been clearly confirmed by X-ray diffraction. The scanning electron microscopy micrographs have shown the microporous character of the obtained pellets due to the low temperature and dwell time used in the synthesis process (10 min at 1173 K). The orthorhombic-rhombohedral phase transition has been observed at approximately 1273 K in differential thermal analysis measurements, which also allows us to determine the Néel temperature at 742 K. The fitted Mössbauer spectra exposed the presence of a single sextet ascribed to the Fe+3 ions in the tetrahedral site. Finally, magnetic measurements at room temperature indicate the antiferromagnetic character of the sample. |
Agencias financiadoras | Ministerio de Ciencia e Innovación (MICIN). España Junta de Andalucía |
Identificador del proyecto | TED2021-131839B-C22
PDC2021-121552-C21 FJC2021-047783 ProyExcel_00360 |
Cita | Manchón Gordón, A.F., Sánchez Jiménez, P.E., Blázquez Gámez, J.S., Perejón Pazo, A. y Pérez Maqueda, L.A. (2023). Structural, Vibrational, and Magnetic Characterization of Orthoferrite LaFeO3 Ceramic Prepared by Reaction Flash Sintering. Materials, 6 (3), 1019. https://doi.org/10.3390/ma16031019. |
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