Synergistic stabilization of metastable Fe23B6 and γ -Fe in undercooled Fe83B17

D. G. Quirinale, G. E. Rustan, A. Kreyssig, A. I. Goldman

Research output: Contribution to journalArticlepeer-review

26 Scopus citations

Abstract

Previous investigations of undercooled liquid Fe83B17 near the eutectic composition have found that metastable crystalline phases, such as Fe23B6, can be formed and persist down to ambient temperature even for rather modest cooling rates. Using time-resolved high-energy x-ray diffraction on electrostatically levitated samples of Fe83B17, we demonstrate that the Fe23B6 metastable phase and fcc γ-Fe grow coherently from the undercooled Fe83B17 liquid and effectively suppress the formation of the equilibrium Fe2B-+-bcc α-Fe phases. The stabilization of γ-Fe offers another opportunity for experimental investigations of magnetism in metastable fcc iron.

Original languageEnglish
Article number241906
JournalApplied Physics Letters
Volume106
Issue number24
DOIs
StatePublished - Jun 15 2015
Externally publishedYes

Funding

FundersFunder number
National Science FoundationDMR-1308099

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