journal article·2022-11-18Open access

Exploring the limits of Fe3+ solid solution in calcium hexaluminate

P. G. de la Iglesia, O. García-Moreno, J. L. Menéndez, R. Torrecillas, J. F. Marco

Abstract

Abstract 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. Graphical Abstract Exploring the limits of Fe3+ solid solution in calcium hexaluminate.
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Research context

OpenAlex topics: Multiferroics and related materials · Magnetic Properties and Synthesis of Ferrites · Iron oxide chemistry and applications

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

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