Evolution of a bicontinuous nanostructure via a solid-state interfacial dealloying reaction

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23 Citations (Scopus)

Abstract

The solid dealloying reaction was investigated using (Fe,Cr)-Ni and Mg diffusion couples. Ni selectively reacted with Mg and the remaining Fe and Cr formed various topologies. An etching treatment provided interconnected Fe-Cr alloy with a ligament width below 200 nm, which is about one order of magnitude finer than that obtained for dealloying with Mg melt. The formation of ordered single-crystal nanofilaments at the dealloying front suggests that the topology evolved via the recently proposed interfacial spinodal decomposition and diffusion-coupled growth mechanism.

Original languageEnglish
Pages (from-to)33-36
Number of pages4
JournalScripta Materialia
Volume118
DOIs
Publication statusPublished - 2016 Jun

Keywords

  • Dealloying
  • Foam
  • Interface diffusion
  • Porous material

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys

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