Magnetic and magnetocaloric properties of Fe2AlB2 synthesized by single-step reactive hot pressing

A single-step, reactive hot-pressing technique was used to synthesize dense, polycrystalline samples of the nanolaminated MAB phase, Fe2AlB2. The process yielded nearly single-phase stoichiometric Fe2AlB2 materials containing only Al2O3 as the impurity phase in a fraction of the synthesis time typic...

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Bibliographic Details
Published in:Scripta materialia 2020-11, Vol.188, p.244-248
Main Authors: Bennett, Steven P., Kota, Sankalp, ElBidweihy, Hatem, Parker, Joseph F., Hanner, Luke A., Finkel, Peter, Barsoum, Michel W.
Format: Article
Language:English
Subjects:
Fe2AlB2
Hot-pressing
MAB phase
Magnetic properties
Magnetocaloric
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Summary:A single-step, reactive hot-pressing technique was used to synthesize dense, polycrystalline samples of the nanolaminated MAB phase, Fe2AlB2. The process yielded nearly single-phase stoichiometric Fe2AlB2 materials containing only Al2O3 as the impurity phase in a fraction of the synthesis time typically required for the more commonly used arc-melting methods. To determine crystalline, magnetic, and stoichiometric properties, samples were analyzed by X-ray diffraction, energy dispersive X-ray spectroscopy, X-ray photoelectron spectroscopy, and temperature-dependent vibrating sample magnetometry. The results of both magnetic techniques show magnetic and magnetocaloric properties similar to those obtained in the literature by other methods such as multi-day arc melting and annealing. [Display omitted]
ISSN:1359-6462
1872-8456
DOI:10.1016/j.scriptamat.2020.07.042