The cationic effect on properties and structure of CaO-MgO-SiO2 melts

Yong Uk Han; Dong Joon Min

doi:10.1007/978-3-319-48769-4_53

The cationic effect on properties and structure of CaO-MgO-SiO₂ melts

Yong Uk Han, Dong Joon Min

Department of Materials Science and Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

3 Citations (Scopus)

Abstract

A study on the effect of cation species on the viscosity and electrical conductivity of CaOMgO- SiO₂ system is carried out. Rotating cylindrical and two-plate method is used for viscosity and electrical conductivity measurements, respectively. Raman spectroscopy is also carried out to understand the structure of the slags. Experimental results indicated that the cationic effect on viscosity and ionic conductivity is governed by classical Anderson-Stuart theory: The dominance of electrostatic interaction on steric hindrance is confirmed for depolymerized melts (NBO/T=2.0). For polymerized melts (NBO/T=0), however, the major cationic effect on transport properties are examined to be a strain field distortion energy. The viscosity and ionic electrical conductivity are in strong correlation and assumed as the structure-dependent property. The structure of polymerized melts is also affected by the transition in primary solidification phase: Abnormal changes in properties and structure are observed at diopside congruent composition. Such a change at the congruent composition is assured by the entropy calculation and the stability function, ψ.

Original language	English
Title of host publication	Advances in Molten Slags, Fluxes, and Salts
Subtitle of host publication	Proceedings of the 10th International Conference on Molten Slags, Fluxes and Salts 2016
Editors	Ramana G. Reddy, Pinakin Chaubal, P. Chris Pistorius, Uday Pal
Publisher	Springer International Publishing AG
Pages	501-509
Number of pages	9
ISBN (Print)	9783319486253
DOIs	https://doi.org/10.1007/978-3-319-48769-4_53
Publication status	Published - 2017
Event	10th International Conference on Molten Slags, Fluxes and Salts, MOLTEN 2016 - Seattle, United States Duration: 2016 May 22 → 2016 May 25

Publication series

Name	Advances in Molten Slags, Fluxes, and Salts: Proceedings of the 10th International Conference on Molten Slags, Fluxes and Salts 2016

Other

Other	10th International Conference on Molten Slags, Fluxes and Salts, MOLTEN 2016
Country/Territory	United States
City	Seattle
Period	16/5/22 → 16/5/25

Bibliographical note

Publisher Copyright:
© 2016 by The Minerals, Metals & Materials Society.

All Science Journal Classification (ASJC) codes

Mechanical Engineering
Mechanics of Materials
Materials Chemistry
Metals and Alloys

Access to Document

10.1007/978-3-319-48769-4_53

Cite this

Han, Y. U., & Min, D. J. (2017). The cationic effect on properties and structure of CaO-MgO-SiO₂ melts. In R. G. Reddy, P. Chaubal, P. C. Pistorius, & U. Pal (Eds.), Advances in Molten Slags, Fluxes, and Salts: Proceedings of the 10th International Conference on Molten Slags, Fluxes and Salts 2016 (pp. 501-509). (Advances in Molten Slags, Fluxes, and Salts: Proceedings of the 10th International Conference on Molten Slags, Fluxes and Salts 2016). Springer International Publishing AG. https://doi.org/10.1007/978-3-319-48769-4_53

Han, Yong Uk ; Min, Dong Joon. / The cationic effect on properties and structure of CaO-MgO-SiO₂ melts. Advances in Molten Slags, Fluxes, and Salts: Proceedings of the 10th International Conference on Molten Slags, Fluxes and Salts 2016. editor / Ramana G. Reddy ; Pinakin Chaubal ; P. Chris Pistorius ; Uday Pal. Springer International Publishing AG, 2017. pp. 501-509 (Advances in Molten Slags, Fluxes, and Salts: Proceedings of the 10th International Conference on Molten Slags, Fluxes and Salts 2016).

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abstract = "A study on the effect of cation species on the viscosity and electrical conductivity of CaOMgO- SiO2 system is carried out. Rotating cylindrical and two-plate method is used for viscosity and electrical conductivity measurements, respectively. Raman spectroscopy is also carried out to understand the structure of the slags. Experimental results indicated that the cationic effect on viscosity and ionic conductivity is governed by classical Anderson-Stuart theory: The dominance of electrostatic interaction on steric hindrance is confirmed for depolymerized melts (NBO/T=2.0). For polymerized melts (NBO/T=0), however, the major cationic effect on transport properties are examined to be a strain field distortion energy. The viscosity and ionic electrical conductivity are in strong correlation and assumed as the structure-dependent property. The structure of polymerized melts is also affected by the transition in primary solidification phase: Abnormal changes in properties and structure are observed at diopside congruent composition. Such a change at the congruent composition is assured by the entropy calculation and the stability function, ψ.",

keywords = "Electrical conductivity, Slag structure, Stability, Viscosity",

author = "Han, {Yong Uk} and Min, {Dong Joon}",

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Han, YU & Min, DJ 2017, The cationic effect on properties and structure of CaO-MgO-SiO₂ melts. in RG Reddy, P Chaubal, PC Pistorius & U Pal (eds), Advances in Molten Slags, Fluxes, and Salts: Proceedings of the 10th International Conference on Molten Slags, Fluxes and Salts 2016. Advances in Molten Slags, Fluxes, and Salts: Proceedings of the 10th International Conference on Molten Slags, Fluxes and Salts 2016, Springer International Publishing AG, pp. 501-509, 10th International Conference on Molten Slags, Fluxes and Salts, MOLTEN 2016, Seattle, United States, 16/5/22. https://doi.org/10.1007/978-3-319-48769-4_53

The cationic effect on properties and structure of CaO-MgO-SiO₂ melts. / Han, Yong Uk; Min, Dong Joon.
Advances in Molten Slags, Fluxes, and Salts: Proceedings of the 10th International Conference on Molten Slags, Fluxes and Salts 2016. ed. / Ramana G. Reddy; Pinakin Chaubal; P. Chris Pistorius; Uday Pal. Springer International Publishing AG, 2017. p. 501-509 (Advances in Molten Slags, Fluxes, and Salts: Proceedings of the 10th International Conference on Molten Slags, Fluxes and Salts 2016).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

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AU - Han, Yong Uk

AU - Min, Dong Joon

PY - 2017

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N2 - A study on the effect of cation species on the viscosity and electrical conductivity of CaOMgO- SiO2 system is carried out. Rotating cylindrical and two-plate method is used for viscosity and electrical conductivity measurements, respectively. Raman spectroscopy is also carried out to understand the structure of the slags. Experimental results indicated that the cationic effect on viscosity and ionic conductivity is governed by classical Anderson-Stuart theory: The dominance of electrostatic interaction on steric hindrance is confirmed for depolymerized melts (NBO/T=2.0). For polymerized melts (NBO/T=0), however, the major cationic effect on transport properties are examined to be a strain field distortion energy. The viscosity and ionic electrical conductivity are in strong correlation and assumed as the structure-dependent property. The structure of polymerized melts is also affected by the transition in primary solidification phase: Abnormal changes in properties and structure are observed at diopside congruent composition. Such a change at the congruent composition is assured by the entropy calculation and the stability function, ψ.

AB - A study on the effect of cation species on the viscosity and electrical conductivity of CaOMgO- SiO2 system is carried out. Rotating cylindrical and two-plate method is used for viscosity and electrical conductivity measurements, respectively. Raman spectroscopy is also carried out to understand the structure of the slags. Experimental results indicated that the cationic effect on viscosity and ionic conductivity is governed by classical Anderson-Stuart theory: The dominance of electrostatic interaction on steric hindrance is confirmed for depolymerized melts (NBO/T=2.0). For polymerized melts (NBO/T=0), however, the major cationic effect on transport properties are examined to be a strain field distortion energy. The viscosity and ionic electrical conductivity are in strong correlation and assumed as the structure-dependent property. The structure of polymerized melts is also affected by the transition in primary solidification phase: Abnormal changes in properties and structure are observed at diopside congruent composition. Such a change at the congruent composition is assured by the entropy calculation and the stability function, ψ.

KW - Electrical conductivity

KW - Slag structure

KW - Stability

KW - Viscosity

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Han YU, Min DJ. The cationic effect on properties and structure of CaO-MgO-SiO₂ melts. In Reddy RG, Chaubal P, Pistorius PC, Pal U, editors, Advances in Molten Slags, Fluxes, and Salts: Proceedings of the 10th International Conference on Molten Slags, Fluxes and Salts 2016. Springer International Publishing AG. 2017. p. 501-509. (Advances in Molten Slags, Fluxes, and Salts: Proceedings of the 10th International Conference on Molten Slags, Fluxes and Salts 2016). doi: 10.1007/978-3-319-48769-4_53