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Formation mechanisms of Cr<sub>2</sub>AlB<sub>2</sub>, Cr<sub>3</sub>AlB<sub>4</sub>, and Fe<sub>2</sub>AlB<sub>2</sub> MAB phases

Luke A. Hanner, Sankalp Kota, Michel W. Barsoum

Materials Research Letters · 2021 · 40 citations · 18 references

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Abstract

Quenching studies of CrB-Al, CrB-Al-B and ß-FeB-Al mixtures revealed that all three undergo a topotactic transformation in the presence of Al to form Cr2AlB2, Cr3AlB4, and Fe2AlB2 MAB phases, respectively. The formation mechanism is intercalation for the Cr-based compounds, and reconstructive for the ß-FeB based mixture.

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