Unusual wetting of liquid metals on iron substrate with oxidized surface in reduced atmosphere

Nobuyuki Takahira, Toshihiro Tanaka, Shigeta Hara, Joonho Lee

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26 Citations (Scopus)


The authors found that a liquid Cu droplet wetted and spread very widely on a solid substrate of Fe in a reduced atmosphere after the surface oxidation of the substrate. The mechanism of the unusual wetting behavior was investigated by using surface-oxidized Fe substrate with liquid Cu, Ag, Sn, and In. It was found that under a reduced atmosphere condition, fine pores were formed at the surface of the substrate which had been oxidized, and that the pores were connected to each other continuously over the whole surface. The liquid metals penetrate into these pores by capillary force to cause the unusual wetting behavior.

Original languageEnglish
Pages (from-to)3008-3014
Number of pages7
JournalMaterials Transactions
Issue number12
Publication statusPublished - 2005 Dec 1



  • Capillary phenomenon
  • Copper
  • High temperature oxidation
  • Indium
  • Porous structure
  • Silver
  • Tin
  • Wettability

ASJC Scopus subject areas

  • Materials Science(all)
  • Metals and Alloys

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