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

Yong Uk Han, Dong Joon Min

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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 languageEnglish
Title of host publicationAdvances in Molten Slags, Fluxes, and Salts
Subtitle of host publicationProceedings of the 10th International Conference on Molten Slags, Fluxes and Salts 2016
PublisherSpringer International Publishing AG
Pages501-509
Number of pages9
ISBN (Print)9783319486253
Publication statusPublished - 2017 Jan 1
Event10th International Conference on Molten Slags, Fluxes and Salts, MOLTEN 2016 - Seattle, United States
Duration: 2016 May 222016 May 25

Other

Other10th International Conference on Molten Slags, Fluxes and Salts, MOLTEN 2016
CountryUnited States
CitySeattle
Period16/5/2216/5/25

Fingerprint

Viscosity
Ionic conductivity
Coulomb interactions
Chemical analysis
Transport properties
Slags
Solidification
Raman spectroscopy
Cations
Entropy
Positive ions
Electric Conductivity
diopside

All Science Journal Classification (ASJC) codes

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

Cite this

Han, Y. U., & Min, D. J. (2017). The cationic effect on properties and structure of CaO-MgO-SiO2 melts. In Advances in Molten Slags, Fluxes, and Salts: Proceedings of the 10th International Conference on Molten Slags, Fluxes and Salts 2016 (pp. 501-509). Springer International Publishing AG.
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. Springer International Publishing AG, 2017. pp. 501-509
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Han, YU & Min, DJ 2017, The cationic effect on properties and structure of CaO-MgO-SiO2 melts. in 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.

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. Springer International Publishing AG, 2017. p. 501-509.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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Han YU, Min DJ. The cationic effect on properties and structure of CaO-MgO-SiO2 melts. In 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