A model to calculate the viscosity of silicate melts: Part IV: Alkali-free borosilicate melts

Eli Brosh, Arthur D. Pelton, Sergei A. Decterov

Research output: Contribution to journalArticlepeer-review

17 Scopus citations

Abstract

Our recently developed model for the viscosity of silicate melts is extended to describe and predict the viscosities of oxide melts containing boron. The model requires three adjustable parameters to reproduce the viscosity of B 2O 3 - SiO 2 melts and two parameters for each B 2O 3-MO x melt, where MO x is a basic oxide other than an alkali oxide. All available experimental data have been collected for binary melts formed by B 2O 3 with SiO 2, Al 2O 3, CaO, MgO, ZnO, PbO to calibrate the model. The viscosities of the B 2O 3- containing ternary and higher-order subsystems of the B 2O 3-CaO-MgO-PbO-ZnO- SiO 2 system and of the B 2O 3-CaO-MgO-PbO-ZnO- Al 2O 3 system are then predicted by the model without any additional adjustable parameters. Experimental data were found for only five such subsystems: B 2O 3 -PbO-SiO 2, B 2O 3 -CaO-SiO 2, B 2O 3-PbO-ZnO, B 2O 3 -PbO- Al 2O 3 and B 2O 3 -CaO- Al 2O 3. Predictions of the model are compared to these experimental data.

Original languageEnglish
Pages (from-to)494-501
Number of pages8
JournalInternational Journal of Materials Research
Volume103
Issue number4
DOIs
StatePublished - 14 May 2012
Externally publishedYes

Keywords

  • Borosilicate melts
  • Silicates
  • Slag
  • Thermodynamic modeling
  • Viscosity

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Physical and Theoretical Chemistry
  • Metals and Alloys
  • Materials Chemistry

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