Electrorheological effect of Ti-bearing blast furnace slag with different TiC contents at 1500°C

• Published in: International journal of minerals, metallurgy and materials metallurgy and materials, 2017-07, Vol.24 (7), p.768-775
• Main Authors: Yue, Hong-rui, Jiang, Tao, Zhang, Qiao-yi, Duan, Pei-ning, Xue, Xiang-xin
• Format: Article
• Language: English
• Subjects: Aluminum; Aluminum oxide; Blast furnace slags; Ceramics; Characterization and Evaluation of Materials; Chemistry and Materials Science; Composites; Corrosion and Coatings; Electric fields; Fluids; Glass; Grain size; Investigations; Materials Science; Metallic Materials; Metallurgy; Molybdenum; Natural Materials; Newtonian fluids; Rheological properties; Rheology; Shear stress; Silicon dioxide; Slag; Surfaces and Interfaces; Thin Films; Titanium carbide; Titanium dioxide; Tribology; Viscosity; Yield strength; Yield stress
• ISSN: 1674-4799; 1869-103X
• DOI: 10.1007/s12613-017-1460-z

The electrorheological properties of CaO–SiO2–Al2O3–MgO–TiO2–Ti C slags were investigated to enhance understanding of the effect of TiC addition on the viscosity, yield stress, and fluid pattern of Ti-bearing slags in a direct-current electric field. The viscosities and shear stresses of 4wt% and 8wt% Ti C slags were found to increase substantially with increasing electric field intensity, whereas virtually no rheological changes were observed in the 0wt% TiC slag. The Herschel–Bulkley model was applied to demonstrate that the fluid pattern of the 4wt% TiC slag was converted from that of a Newtonian fluid to that of a Bingham fluid in response to the applied electric field; and the static yield stress increased linearly with the square of the electric field intensity.