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

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

doi:10.1007/s11663-014-0166-0

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 journal › Article › peer-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 language	English
Pages (from-to)	1589-1592
Number of pages	4
Journal	Metallurgical and Materials Transactions B: Process Metallurgy and Materials Processing Science
Volume	45
Issue number	5
DOIs	https://doi.org/10.1007/s11663-014-0166-0
Publication status	Published - 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

Access to Document

10.1007/s11663-014-0166-0

Cite this

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title = "Investigation of Degree of Undercooling of Fe-O Alloy on Al2O3 Substrate",

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.",

author = "Joongkil Choe and Kim, {Han Gyeol} and Youngjo Kang and Joonho Lee",

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: {\textcopyright} 2014, The Minerals, Metals & Materials Society and ASM International.",

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AU - Kim, Han Gyeol

AU - Kang, Youngjo

AU - Lee, Joonho

N1 - 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.

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AB - 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.

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