Effect of surface roughness of MgO substrate on size distribution of inclusions

Y. S. Lee, S. M. Jung, Dong Joon Min

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Experiments were carried out to investigate the effect of surface roughness of MgO substrate on the formation and size distribution of inclusion particles employing new experimental methodology. The reaction of MgO refractory with Al deoxidised liquid Fe can take place, which results in forming both MgO and spinel type of inclusions. The number density of inclusions increases with increasing surface roughness of the substrate, which could be explained by Gibbs-Thompson effect. Activated interfacial reactions between the substrate and liquid Fe are believed to be more dominant than the effect of increased surface roughness of the substrate on the number density of inclusions. It is recommended to use Al 2 O 3 based nozzle than MgO based one of similar surface roughness from a viewpoint of the generation of lower number density of inclusions.

Original languageEnglish
Pages (from-to)213-218
Number of pages6
JournalIronmaking and Steelmaking
Volume41
Issue number3
DOIs
Publication statusPublished - 2014 Jan 1

Fingerprint

Surface roughness
Substrates
Liquids
Surface chemistry
Refractory materials
Nozzles
Experiments

All Science Journal Classification (ASJC) codes

  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

Cite this

@article{08311411c36240fdadc11411be9c079d,
title = "Effect of surface roughness of MgO substrate on size distribution of inclusions",
abstract = "Experiments were carried out to investigate the effect of surface roughness of MgO substrate on the formation and size distribution of inclusion particles employing new experimental methodology. The reaction of MgO refractory with Al deoxidised liquid Fe can take place, which results in forming both MgO and spinel type of inclusions. The number density of inclusions increases with increasing surface roughness of the substrate, which could be explained by Gibbs-Thompson effect. Activated interfacial reactions between the substrate and liquid Fe are believed to be more dominant than the effect of increased surface roughness of the substrate on the number density of inclusions. It is recommended to use Al 2 O 3 based nozzle than MgO based one of similar surface roughness from a viewpoint of the generation of lower number density of inclusions.",
author = "Lee, {Y. S.} and Jung, {S. M.} and Min, {Dong Joon}",
year = "2014",
month = "1",
day = "1",
doi = "10.1179/1743281213Y.0000000120",
language = "English",
volume = "41",
pages = "213--218",
journal = "Ironmaking and Steelmaking",
issn = "0301-9233",
publisher = "Maney Publishing",
number = "3",

}

Effect of surface roughness of MgO substrate on size distribution of inclusions. / Lee, Y. S.; Jung, S. M.; Min, Dong Joon.

In: Ironmaking and Steelmaking, Vol. 41, No. 3, 01.01.2014, p. 213-218.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Effect of surface roughness of MgO substrate on size distribution of inclusions

AU - Lee, Y. S.

AU - Jung, S. M.

AU - Min, Dong Joon

PY - 2014/1/1

Y1 - 2014/1/1

N2 - Experiments were carried out to investigate the effect of surface roughness of MgO substrate on the formation and size distribution of inclusion particles employing new experimental methodology. The reaction of MgO refractory with Al deoxidised liquid Fe can take place, which results in forming both MgO and spinel type of inclusions. The number density of inclusions increases with increasing surface roughness of the substrate, which could be explained by Gibbs-Thompson effect. Activated interfacial reactions between the substrate and liquid Fe are believed to be more dominant than the effect of increased surface roughness of the substrate on the number density of inclusions. It is recommended to use Al 2 O 3 based nozzle than MgO based one of similar surface roughness from a viewpoint of the generation of lower number density of inclusions.

AB - Experiments were carried out to investigate the effect of surface roughness of MgO substrate on the formation and size distribution of inclusion particles employing new experimental methodology. The reaction of MgO refractory with Al deoxidised liquid Fe can take place, which results in forming both MgO and spinel type of inclusions. The number density of inclusions increases with increasing surface roughness of the substrate, which could be explained by Gibbs-Thompson effect. Activated interfacial reactions between the substrate and liquid Fe are believed to be more dominant than the effect of increased surface roughness of the substrate on the number density of inclusions. It is recommended to use Al 2 O 3 based nozzle than MgO based one of similar surface roughness from a viewpoint of the generation of lower number density of inclusions.

UR - http://www.scopus.com/inward/record.url?scp=84896918387&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84896918387&partnerID=8YFLogxK

U2 - 10.1179/1743281213Y.0000000120

DO - 10.1179/1743281213Y.0000000120

M3 - Article

VL - 41

SP - 213

EP - 218

JO - Ironmaking and Steelmaking

JF - Ironmaking and Steelmaking

SN - 0301-9233

IS - 3

ER -