Wetting and spreading behavior of liquid iron on single crystal TiO2 substrate

Changji Xuan, Keiji Nakajima, Hiroyuki Shibata, Pär Göran Jönsson

Research output: Contribution to journalArticlepeer-review

Abstract

This work reported the wetting and spreading behavior of pure iron droplet on single crystal TiO2 substrate. During the heating process, a “FeO·TiOx separated liquid phase” appeared at the temperature below the melting point of the pure iron, and completely covered the lower half of the iron droplet. The observed high-wetting behavior of the droplet is due to the spreading of the “separated liquid phase” rather than the iron droplet flow. According to both thermodynamic considerations and experimental measurements, the “separated liquid phase” is formed through the chemical interactions among the iron specimen, oxygen gas in the Ar atmosphere and TiO2 substrate.

Original languageEnglish
Article number126778
JournalMaterials Letters
Volume258
DOIs
Publication statusPublished - 2020 Jan 1

Keywords

  • Interfacial phenomenon
  • Partial pressure oxygen
  • Reactive wetting
  • TiO

ASJC Scopus subject areas

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

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