XPS Study on Calcining Mixtures of Brucite with Titania

In this work, we studied the phases in a Mg-Ti-O system using a 1:1 formulation of MgO:TiO2, mixing synthetic brucite of Mexican origin with TiO2 microparticles of high purity, with a heat treatment at 1100 °C for 1 h. Due to its valence electrons, TiO2 can contribute to the sintering process to imp...

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Detalles Bibliográficos
Autores principales: Sánchez Zambrano, Karla Sofía, Hernández Reséndiz, Marina, Gómez Rodríguez, Cristian, García Quiñonez, Linda Viviana, Aguilar Martínez, Josué Amilcar, Rodríguez Castellanos, Edén Amaral, Verdeja, Luis Felipe, Fernández González, Daniel, Castillo Rodríguez, Guadalupe Alan
Formato: Artículo
Lenguaje:inglés
Publicado: Molecular Diversity Preservation International 2022
Materias:
Acceso en línea:http://eprints.uanl.mx/23561/1/23561.pdf
Descripción
Sumario:In this work, we studied the phases in a Mg-Ti-O system using a 1:1 formulation of MgO:TiO2, mixing synthetic brucite of Mexican origin with TiO2 microparticles of high purity, with a heat treatment at 1100 °C for 1 h. Due to its valence electrons, TiO2 can contribute to the sintering process to improve density in MgO products. The raw materials and formulation by XPS and X-RD techniques were characterized. The results demonstrate the presence of different oxidation states in titania and the formation of different oxides in the Mg-Ti-O system when mixed and calcined at 1100 °C; additionally, we estimated the formation of vacancies in the crystal lattice during the transformation from hexagonal brucite to magnesia with a cubic structure centered on the faces. Its thermal behavior is indicated by the MgO-TiO2 phase diagram.