Effect of TiO2/SiO2 ratio on structure and properties of BaO–CaO–SiO2–TiO2–CaF2–Li2O–Na2O slag system
Source abstract
Abstract
The effect of TiO 2 /SiO 2 ratio from 0.28 to 0.54 on the structure and properties of the BaO-CaO-SiO 2 -TiO 2 -CaF 2 -Li 2 O-Na 2 O low reaction slag were studied for high-Ti steel continuous casting at 1573K by molecular dynamics simulation, Raman spectroscopy and rotational viscometer. The results showed that when TiO 2 /SiO 2 <0.44, Ti VI in TiO 2 mainly acts as a network modifier. When TiO 2 /SiO 2 >0.44, Ti Ⅴ in TiO 2 mainly plays the role of network forming body. As the TiO 2 /SiO 2 ratio increases, the results revealed changes in the structures of bridging oxygen and Ti Ⅴ , as well as the Si-O network. The NBO/T value increased from 2.84 to 3.98 and then decreased to 3.91. The viscosity of the slag decreased from 0.08 Pa·s to 0.04 Pa·s, and the complex and network structures were depolymerized. Subsequently, the degree of polymerization of the melt increased, and the viscosity increased to 0.08 Pa·s due to the increase of number of bridge oxygen.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Metallurgical Processes and Thermodynamics · Materials Engineering and Processing · Magnesium Oxide Properties and Applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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