Abstract
The influence of the CaO/SiO2 ratio on flux viscosity at 1300°C, break temperature and crystallization was investigated.
The thermo-chemical software FactSage was used for the calculation of the viscosity, the equilibrium phase content and the liquidus temperature. Based on these results, two sample series with 8.8 wt% TiO2, 5 wt% B2O3 and CaO/SiO2 ratios from 0.8-1.2 were manufactured. Series M1 contained Li2O which was replaced by a higher content of Na2O for F-free mixtures in series M2. The viscosity and break temperature were determined through rotational viscometry, the crystallization temperature and crystalline fraction by a so called Furnace Crystallization Test, a macro style differential thermal analysis which enables a mineralogical investigation of the samples afterwards.
The experiments exhibited that the break temperature, the liquidus temperature and the crystalline fraction rose with increasing C/S ratio while the viscosity decreased for both sequences.
The thermo-chemical software FactSage was used for the calculation of the viscosity, the equilibrium phase content and the liquidus temperature. Based on these results, two sample series with 8.8 wt% TiO2, 5 wt% B2O3 and CaO/SiO2 ratios from 0.8-1.2 were manufactured. Series M1 contained Li2O which was replaced by a higher content of Na2O for F-free mixtures in series M2. The viscosity and break temperature were determined through rotational viscometry, the crystallization temperature and crystalline fraction by a so called Furnace Crystallization Test, a macro style differential thermal analysis which enables a mineralogical investigation of the samples afterwards.
The experiments exhibited that the break temperature, the liquidus temperature and the crystalline fraction rose with increasing C/S ratio while the viscosity decreased for both sequences.
Original language | English |
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Title of host publication | Advances in Molten Slags, Fluxes, and Salts: Proceedings of the 10th International Conference on Molten Slags, Fluxes and Salts |
Editors | Ramana G Reddy, Pinakin Chaubal, P.Chris Pistorius, Uday Pal |
Place of Publication | Seattle Washington USA |
Pages | 299 |
Number of pages | 306 |
ISBN (Electronic) | 978-1-119-30876-8 |
DOIs | |
Publication status | Published - 22 May 2016 |
Event | The 10th international conference on molten slags, fluxes and salts - Seattle, United States Duration: 22 May 2016 → 25 May 2016 |
Conference
Conference | The 10th international conference on molten slags, fluxes and salts |
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Abbreviated title | MOLTEN 2016 |
Country/Territory | United States |
City | Seattle |
Period | 22/05/16 → 25/05/16 |