Spontaneous Liquefaction of Solid Metal–Liquid Metal Interfaces in Colloidal Binary Alloys

Abstract: Crystallization of alloys from a molten state is a fundamental process underpinning metallurgy. Here the direct imaging of an intermetallic precipitation reaction at equilibrium in a liquid‐metal environment is demonstrated. It is shown that the outer layers of a solidified intermetallic are surprisingly unstable to the depths of several nanometers, fluctuating between a crystalline and a liquid state. This effect, referred to herein as crystal interface liquefaction, is observed at remarkably low temperatures and results in highly unstable crystal interfaces at temperatures exceeding 200 K below the bulk melting point of the solid. In general, any liquefaction process would occur at or close to the formal melting point of a solid, thus differentiating the observed liquefaction phenomenon from other processes such as surface pre‐melting or conventional bulk melting. Crystal interface liquefaction is observed in a variety of binary alloy systems and as such, the findings may impact the understanding of crystallization and solidification processes in metallic systems and alloys more generally.

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• Standort: Deutsche Nationalbibliothek Frankfurt am Main
• Umfang: Online-Ressource
• Sprache: Englisch

Verweise und Beziehungen

• Erschienen in: Spontaneous Liquefaction of Solid Metal–Liquid Metal Interfaces in Colloidal Binary Alloys ; day:05 ; month:05 ; year:2024 ; extent:9 ; Advanced science ; (05.05.2024) (gesamt 9)

Beteiligte, Orts- und Zeitangaben

• Urheber: Parker, Caiden J. ; Zuraiqi, Karma ; Krishnamurthi, Vaishnavi ; Mayes, Edwin LH ; Vaillant, Pierre H. A. ; Fatima, Syeda Saba ; Matuszek, Karolina ; Tang, Jianbo ; Kalantar‐Zadeh, Kourosh ; Meftahi, Nastaran ; McConville, Chris F. ; Elbourne, Aaron ; Russo, Salvy P. ; Christofferson, Andrew J. ; Chiang, Ken ; Daeneke, Torben

Weitere Informationen

• DOI: 10.1002/advs.202400147
• URN: urn:nbn:de:101:1-2405051403555.217782217889
• Rechteinformation: Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.