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Abstract
AlB MAB phases Topotaxy
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 Cr
2
AlB
2
, Cr
3
AlB
4
, and Fe
2
AlB
2
MAB phases, respectively. The formation mechanism is intercalation for the Cr-based compounds, and reconstructive for the ß-FeB based mixture.