Regular Article 

Influence of TiC_0.3N_0.7 on viscosity of TiO₂-containing slag

¹ School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, PR China
² MCC Capital Engineering and Research Incorporation Limited, Beijing 100176, PR China

^* email: zhang.jianliang@hotmail.com

Received: 2 December 2017
Accepted: 4 January 2018

Abstract

The influence of TiC_0.3N_0.7 on viscosities of CaO-SiO₂-MgO-Al₂O₃-TiO₂ slags was investigated by the rotating cylinder method in this work. From the viscosity experimental results, it was found that the viscosity of the two-phase suspension system increased with increasing the volume fraction of TiC_0.3N_0.7 particle and decreased with increasing the rotation speed. The viscosity increased with the temperature decreasing and the relationship between viscosity and temperature could be described by the Arrhenius equation. However, temperature has little influence on the relative viscosity which is the ratio of solid–liquid mixture viscosity to pure liquid viscosity. The modified Einstein–Roscoe equation based on the present experimental values could well estimate the viscosity of TiC_0.3N_0.7 containing melts. The apparent volume of TiC_0.3N_0.7 was calculated to be 5.0–6.0 times of its real volume.