Effect of 5wt% Fe_(3)O_(4) addition on the phase equilibria of the CaO-SiO_(2)-TiO_(2) system at 1400 ℃ in air  

作　　者：Junjie Shi Chenglong Jiang Yifei Cao Yumo Zhai Yuchao Qiu Hangkai Shi Maoxi Yao Jianzhong Li 

机构地区：[1]Key Laboratory for Ecological Metallurgy of Multimetallic Mineral(Ministry of Education),Northeastern University,Shenyang 110819,China [2]School of Metallurgy,Northeastern University,Shenyang 110819,China [3]National-Local Joint Engineering Research Center of High-Effect Exploitation Technology for Refractory Iron Ore Resources,Shenyang 110819,China [4]School of Resources and Civil Engineering,Northeastern University,Shenyang 110819,China

出　　处：《International Journal of Minerals,Metallurgy and Materials》2025年第4期851-858,共8页矿物冶金与材料学报(英文版)

基　　金：financially supported from the National Natural Science Foundation of China (No. 52204310);the National Key Research and Development Program of China (No. 2021YFC2901000);the China Postdoctoral Science Foundation (Nos. 2020TQ0059 and 2020M570967);the Natural Science Foundation of Liaoning Province, China (No. 2021-MS-083);the Fundamental Research Funds for the Central Universities, China (No. N2125010);the Open Project Program of Key Laboratory of Metallurgical Emission Reduction & Resources Recycling (Anhui University of Technology), Ministry of Education, China (No. JKF22-02);the Key Laboratory for Anisotropy and Texture of Materials, Ministry of Education, China。

摘　　要：The equilibrium phase relations of the CaO–SiO_(2)–TiO_(2)–5wt%Fe_(3)O_(4)system were experimentally investigated at 1400℃ in air High-temperature equilibration-quenching techniques were employed in an electric MoSi2resistance heated furnace,with phase composition analysis conducted using an electron probe microanalyzer and X-ray diffraction.A single liquid region,liquid–solid phase equilibria regions (including liquid–tridymite,liquid–rutile,liquid–perovskite,and liquid–wollastonite),and three-phase equilibria regions of liquid–tridymite–rutile and liquid–rutile–perovskite were found.The 1400℃ isothermal sections of the CaO-SiO_(2)-TiO_(2)-5wt%Fe_(3)O_(4)system in air were projected.The present experimental results exhibited good agreement with the calculation results obtained from FactSage.

关 键 词：phase diagram titanium MAGNETITE THERMODYNAMIC oxide 

分 类 号：TG1[金属学及工艺—金属学]