Cyclic Solid-Liquid Phase Transformations in the CaO – SiO 2 System—Experiments and Modelling
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In: Metallurgical and materials transactions. B, Process metallurgy and materials processing science, Vol. 54.2023, No. June, 19.04.2023, p. 1555-1564.
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TY - JOUR
T1 - Cyclic Solid-Liquid Phase Transformations in the CaO – SiO 2 System—Experiments and Modelling
AU - Ogris, Daniel
AU - Kircher, Volkmar
AU - Gamsjäger, Ernst
N1 - Publisher Copyright: © 2023, The Author(s).
PY - 2023/4/19
Y1 - 2023/4/19
N2 - The cyclic growth and shrinkage of solid oxides (i.e. wollastonite) in CaO–SiO2-based slags is investigated in-situ by means of High-Temperature Confocal Scanning Laser Microscopy (HT-CSLM). The compositions of the slags are carefully selected to induce different phase transformation conditions, i.e. congruent and incongruent melting/solidification. To complement the experimental results, the kinetics of growth and shrinkage of oxide crystals is investigated by means of a sharp interface model where the interfacial reaction and diffusion in the liquid bulk are considered as possible rate-controlling processes. The modelling approach combined with data analysis from key experiments reveals the underlying dissipative processes of solidification and melting phenomena, here, diffusion in the liquid bulk material and/or the interfacial reactions. The modelling approach is likely to be applicable for future materials design and processing problems from this perspective.
AB - The cyclic growth and shrinkage of solid oxides (i.e. wollastonite) in CaO–SiO2-based slags is investigated in-situ by means of High-Temperature Confocal Scanning Laser Microscopy (HT-CSLM). The compositions of the slags are carefully selected to induce different phase transformation conditions, i.e. congruent and incongruent melting/solidification. To complement the experimental results, the kinetics of growth and shrinkage of oxide crystals is investigated by means of a sharp interface model where the interfacial reaction and diffusion in the liquid bulk are considered as possible rate-controlling processes. The modelling approach combined with data analysis from key experiments reveals the underlying dissipative processes of solidification and melting phenomena, here, diffusion in the liquid bulk material and/or the interfacial reactions. The modelling approach is likely to be applicable for future materials design and processing problems from this perspective.
UR - http://www.scopus.com/inward/record.url?scp=85153107598&partnerID=8YFLogxK
U2 - 10.1007/s11663-023-02783-8
DO - 10.1007/s11663-023-02783-8
M3 - Article
AN - SCOPUS:85153107598
VL - 54.2023
SP - 1555
EP - 1564
JO - Metallurgical and materials transactions. B, Process metallurgy and materials processing science
JF - Metallurgical and materials transactions. B, Process metallurgy and materials processing science
SN - 1073-5615
IS - June
ER -
