Effect of Li2O on Non-Isothermal Crystallization of Cuspidine in CaO–SiO2–CaF2 Glasses

This paper presents the effects of Li 2 O addition on the non-isothermal melt crystallization of Cuspidine in CaO–SiO 2 –CaF 2 glass. The addition of Li 2 O retarded crystallization at all cooling rates and converted the mode of nucleation from instantaneous to progressive. Two types of kinetic anal...

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Bibliographic Details
Published in:Metallurgical and materials transactions. B, Process metallurgy and materials processing science Process metallurgy and materials processing science, 2021-08, Vol.52 (4), p.2186-2193
Main Authors: Yeo, Tae-min, Cho, Jung-Wook
Format: Article
Language:English
Subjects:
Calcium fluoride
Calcium oxide
Characterization and Evaluation of Materials
Chemistry and Materials Science
Continuous casting
Cooling rate
Crystallization
Iron and steel making
Lithium oxides
Materials Science
Metallic Materials
Mold fluxes
Nanotechnology
Nucleation
Original Research Article
Silicon dioxide
Steel production
Structural Materials
Surfaces and Interfaces
Thin Films
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Summary:This paper presents the effects of Li 2 O addition on the non-isothermal melt crystallization of Cuspidine in CaO–SiO 2 –CaF 2 glass. The addition of Li 2 O retarded crystallization at all cooling rates and converted the mode of nucleation from instantaneous to progressive. Two types of kinetic analysis indicated anti-Arrhenius behavior in the samples, which means that overall crystallization was governed by nucleation. Furthermore, the change in effective activation energy indicated that the addition of Li 2 O impeded the initial stage of crystal formation. Therefore, the addition of Li 2 O retarded the crystallization of CaO–SiO 2 –CaF 2 melt as a result of suppression of nucleation. These results increase our understanding of melt crystallization kinetics of glass for use as mold flux in continuous casting steel production.
ISSN:1073-5615
1543-1916
DOI:10.1007/s11663-021-02186-7