Exploring the limits of Fe3+ solid solution in calcium hexaluminate

Calcium hexaluminate (CA6) forms a broad range of solid solutions by substitution of Al3+ with other cations such as, for example, Fe, Co, Mn, etc. Solid solutions of CA6 with magnetic ions have attracted interest because they allow designing the magnetic behavior depending on the composition of eac...

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Detalles Bibliográficos
Autores: De la Iglesia, P. G., García-Moreno, Olga, Menéndez, José Luis, Torrecillas, Ramón, Marco, J.F.
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2023
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/289520
Acceso en línea:http://hdl.handle.net/10261/289520
https://api.elsevier.com/content/abstract/scopus_id/85142192634
Access Level:acceso abierto
Palabra clave:Calcium hexaluminate
Magnetic properties
Solid solution
Descripción
Sumario:Calcium hexaluminate (CA6) forms a broad range of solid solutions by substitution of Al3+ with other cations such as, for example, Fe, Co, Mn, etc. Solid solutions of CA6 with magnetic ions have attracted interest because they allow designing the magnetic behavior depending on the composition of each solid solution. In this paper, we have studied materials pertaining to an area of the CaO–Al2O3–Fe2O3 ternary phase diagram that is potentially interesting, but which has not been too much explored so far. We report on various synthesis methods of calcium hexaluminate with iron in solid solution. The percentages of iron introduced have been varied in order to determine the maximum percentage of iron that can enter into solid solution in the calcium hexaluminate such that the materials obtained exhibit magnetic behavior.