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Effect of crystallinity on thermal diffusivities of mould fluxes for the continuous casting of steels
KTH, Superseded Departments, Materials Science and Engineering.
KTH, Superseded Departments, Materials Science and Engineering.
KTH, Superseded Departments, Materials Science and Engineering.
2004 (English)In: ISIJ International, ISSN 0915-1559, E-ISSN 1347-5460, Vol. 44, no 4, 691-697 p.Article in journal (Refereed) Published
Abstract [en]

The thermal diffusivities of mould flux having the glassy and crystalline states were measured as a function of temperature by the laser flash method to obtain the relationship between the thermal diffusivity and the degree of crystallization. The thermal diffusivities of the liquid mould flux were also measured to compare the data with those of the solid samples. The thermal diffusivity increases roughly linearly with an increase in the degree of crystallization. The thermal diffusivities of glassy and liquid samples having the ratios of NBO/T 1.48, 1.65 and 2.11 exhibit roughly the same values of 4.6 x 10(-7) m(2)s(-1) and 4.0 x 10(-7) m(2)s(-1), respectively. It is considered that because the silicate network is largely broken down, there is not a significant change of the structure for these samples.

Place, publisher, year, edition, pages
2004. Vol. 44, no 4, 691-697 p.
Keyword [en]
thermal diffusivity, mould flux, laser flash method, degree of crystallization, silicate network
National Category
Metallurgy and Metallic Materials
Identifiers
URN: urn:nbn:se:kth:diva-47392DOI: 10.2355/isijinternational.44.691ISI: 000220991200008Scopus ID: 2-s2.0-2942640273OAI: oai:DiVA.org:kth-47392DiVA: diva2:455167
Note
QC 20111109Available from: 2011-11-09 Created: 2011-11-08 Last updated: 2017-12-08Bibliographically approved

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Hayashi, MiyukiAbdul Abas, RaidSeetharaman, Seshadri
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