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 journalArticlepeer-review

    6 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 Oct

    Bibliographical note

    Funding Information:
    This research was supported by the Space Core Technology Development Program (2012M1A3A3A02033446), and the Converging Research Center Program (2013K000309) through the Ministry of Science, ICT & Future Planning.

    Publisher Copyright:
    © 2014, The Minerals, Metals & Materials Society and ASM International.

    ASJC Scopus subject areas

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

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