Surface tension of liquid Fe-O alloys: Revisiting belton's two-step adsorption model

Yunkyum Kim; Junghyuk Lim; Joongkil Choe; Joonho Lee

doi:10.1007/s11663-014-0033-z

Surface tension of liquid Fe-O alloys: Revisiting belton's two-step adsorption model

Yunkyum Kim
, Junghyuk Lim
, Joongkil Choe
, Joonho Lee^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

17 Citations (Scopus)

Abstract

The effect of oxygen adsorption on the surface tension of liquid iron was investigated using the constrained drop method. Experiments were carried out at 1823 K and 1873 K (1550 °C and 1600 °C) under a CO₂-H ₂ gas mixture. The experimental results were interpreted using the Langmuir ideal adsorption model and Belton's two-step adsorption model; the latter model showed better agreement with the experimental results. According to the two-step model, the surface tension of liquid Fe-O alloys at 1823 K and 1873 K (1550 °C and 1600 °C) can be respectively expressed as follows: σ = 1882 260[0.25ln(1 + 2407a_o) + 0.75 ln(1 + 72a_o] [T =1823K(1550°C)] σ = 1834 267[0.25ln(1 + 1445a_o) + 0.75 ln(1 + 46a_o] [T =1873K(1600°C)].

Original language	English
Pages (from-to)	947-952
Number of pages	6
Journal	Metallurgical and Materials Transactions B: Process Metallurgy and Materials Processing Science
Volume	45
Issue number	3
DOIs	https://doi.org/10.1007/s11663-014-0033-z
Publication status	Published - 2014 Jun

Bibliographical note

Funding Information:
This research was supported by the Space Core Technology Development Program through the Ministry of Education, Science, and Technology (2012M1A3A3A02033446). This research was partially supported by the Converging

ASJC Scopus subject areas

Condensed Matter Physics
Mechanics of Materials
Metals and Alloys
Materials Chemistry

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@article{7bbcc47643ef48eeaae4da0d7c881117,

title = "Surface tension of liquid Fe-O alloys: Revisiting belton's two-step adsorption model",

abstract = "The effect of oxygen adsorption on the surface tension of liquid iron was investigated using the constrained drop method. Experiments were carried out at 1823 K and 1873 K (1550 °C and 1600 °C) under a CO2-H 2 gas mixture. The experimental results were interpreted using the Langmuir ideal adsorption model and Belton's two-step adsorption model; the latter model showed better agreement with the experimental results. According to the two-step model, the surface tension of liquid Fe-O alloys at 1823 K and 1873 K (1550 °C and 1600 °C) can be respectively expressed as follows: σ = 1882 260[0.25ln(1 + 2407ao) + 0.75 ln(1 + 72ao] [T =1823K(1550°C)] σ = 1834 267[0.25ln(1 + 1445ao) + 0.75 ln(1 + 46ao] [T =1873K(1600°C)].",

author = "Yunkyum Kim and Junghyuk Lim and Joongkil Choe and Joonho Lee",

note = "Funding Information: This research was supported by the Space Core Technology Development Program through the Ministry of Education, Science, and Technology (2012M1A3A3A02033446). This research was partially supported by the Converging",

year = "2014",

month = jun,

doi = "10.1007/s11663-014-0033-z",

language = "English",

volume = "45",

pages = "947--952",

journal = "Metallurgical and Materials Transactions B: Process Metallurgy and Materials Processing Science",

issn = "1073-5615",

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TY - JOUR

T1 - Surface tension of liquid Fe-O alloys

T2 - Revisiting belton's two-step adsorption model

AU - Kim, Yunkyum

AU - Lim, Junghyuk

AU - Choe, Joongkil

AU - Lee, Joonho

N1 - Funding Information: This research was supported by the Space Core Technology Development Program through the Ministry of Education, Science, and Technology (2012M1A3A3A02033446). This research was partially supported by the Converging

PY - 2014/6

Y1 - 2014/6

N2 - The effect of oxygen adsorption on the surface tension of liquid iron was investigated using the constrained drop method. Experiments were carried out at 1823 K and 1873 K (1550 °C and 1600 °C) under a CO2-H 2 gas mixture. The experimental results were interpreted using the Langmuir ideal adsorption model and Belton's two-step adsorption model; the latter model showed better agreement with the experimental results. According to the two-step model, the surface tension of liquid Fe-O alloys at 1823 K and 1873 K (1550 °C and 1600 °C) can be respectively expressed as follows: σ = 1882 260[0.25ln(1 + 2407ao) + 0.75 ln(1 + 72ao] [T =1823K(1550°C)] σ = 1834 267[0.25ln(1 + 1445ao) + 0.75 ln(1 + 46ao] [T =1873K(1600°C)].

AB - The effect of oxygen adsorption on the surface tension of liquid iron was investigated using the constrained drop method. Experiments were carried out at 1823 K and 1873 K (1550 °C and 1600 °C) under a CO2-H 2 gas mixture. The experimental results were interpreted using the Langmuir ideal adsorption model and Belton's two-step adsorption model; the latter model showed better agreement with the experimental results. According to the two-step model, the surface tension of liquid Fe-O alloys at 1823 K and 1873 K (1550 °C and 1600 °C) can be respectively expressed as follows: σ = 1882 260[0.25ln(1 + 2407ao) + 0.75 ln(1 + 72ao] [T =1823K(1550°C)] σ = 1834 267[0.25ln(1 + 1445ao) + 0.75 ln(1 + 46ao] [T =1873K(1600°C)].

UR - https://www.scopus.com/pages/publications/84902266882

U2 - 10.1007/s11663-014-0033-z

DO - 10.1007/s11663-014-0033-z

M3 - Article

AN - SCOPUS:84902266882

SN - 1073-5615

VL - 45

SP - 947

EP - 952

JO - Metallurgical and Materials Transactions B: Process Metallurgy and Materials Processing Science

JF - Metallurgical and Materials Transactions B: Process Metallurgy and Materials Processing Science

IS - 3

ER -

Surface tension of liquid Fe-O alloys: Revisiting belton's two-step adsorption model

Abstract

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