Dealloying by metallic melt

Takeshi Wada, Kunio Yubuta, Akihisa Inoue, Hidemi Kato

Research output: Contribution to journalArticlepeer-review

127 Citations (Scopus)

Abstract

Dealloying, which commonly involves corrosion processes in aqueous solutions, is a promising technique for preparing functional nanoporous metals. While this technique is ideal for preparing nanoporous noble metals such as of Au, it is not readily applicable to less-noble metals. Here, we propose a novel dealloying method employing a metallic melt, instead of an aqueous solution, as the dealloying liquid for a preparing of nanoporous metals. An atomic interaction among alloy components and metallic melt causes specific component to dissolve out from the alloy solid into the melt with self-organizing nanoporous structure by the remaining component. The dealloying method can be applied for preparation of nanoporous less-noble metal such as of Ti for the development of functional materials such as fluid filters, gas absorption media, and biomaterials.

Original languageEnglish
Pages (from-to)1076-1078
Number of pages3
JournalMaterials Letters
Volume65
Issue number7
DOIs
Publication statusPublished - 2011 Apr 15

Keywords

  • Composite materials
  • Metal and alloys
  • Porous materials

ASJC Scopus subject areas

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

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