Investigation of Degree of Undercooling of Fe-O Alloy on Al2O3 Substrate

Joongkil Choe, Han Gyeol Kim, Youngjo Kang, Joonho Lee

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

An Fe-O drop of ~0.4 g in an alumina crucible was quenched from ~2200 K (~1927 °C) at a cooling rate of −87 K/s by flowing He gas at a flow rate of 25 L/min STP. A deep undercooling of approximately 200 K was obtained regardless the oxygen content in the sample. According to the classical nucleation theory, the contact angle between a solid Fe nuclei and the Al2O3 substrate was estimated to be 53 (±4) deg.

Original languageEnglish
Pages (from-to)1589-1592
Number of pages4
JournalMetallurgical and Materials Transactions B: Process Metallurgy and Materials Processing Science
Volume45
Issue number5
DOIs
Publication statusPublished - 2014

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ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanics of Materials
  • Metals and Alloys
  • Materials Chemistry

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