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

Fingerprint

Undercooling
Aluminum Oxide
Crucibles
supercooling
crucibles
Contact angle
Nucleation
Alumina
aluminum oxides
flow velocity
Gases
Flow rate
nucleation
Oxygen
Cooling
cooling
nuclei
oxygen
Substrates
gases

ASJC Scopus subject areas

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

Cite this

Investigation of Degree of Undercooling of Fe-O Alloy on Al2O3 Substrate. / Choe, Joongkil; Kim, Han Gyeol; Kang, Youngjo; Lee, Joonho.

In: Metallurgical and Materials Transactions B: Process Metallurgy and Materials Processing Science, Vol. 45, No. 5, 2014, p. 1589-1592.

Research output: Contribution to journalArticle

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