Experimental Study and Thermodynamic Re-optimization of the FeO-Fe2O3-SiO2 System

被引：40
|
作者：
Hidayat, Taufiq [1 ]
Shishin, Denis [1 ]
Decterov, Sergei A. [2 ]
Jak, Evgueni [1 ]
机构：
[1] Univ Queensland, Sch Chem Engn, Pyrometallurgy Innovat Ctr, Brisbane, Qld, Australia
[2] Ecole Polytech, CRCT, Dept Genie Chim, Montreal, PQ, Canada
来源：
JOURNAL OF PHASE EQUILIBRIA AND DIFFUSION | 2017年 / 38卷 / 04期
基金：
澳大利亚研究理事会;
关键词：
CALPHAD; experimental phase equilibria; phase diagram; phase equilibria; thermodynamic assessment; QUASI-CHEMICAL MODEL; CALCIUM SILICATE SLAGS; FE-SI-O; PHASE-EQUILIBRIA; FAYALITE FE2SIO4; FERROUS SILICATE; FREE-ENERGY; IRON; OXYGEN; TEMPERATURES;
D O I：
10.1007/s11669-017-0535-x
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Phase equilibria and thermodynamic data in the FeO-Fe2O3-SiO2 system were critically reviewed. New experiments were undertaken to resolve discrepancies found in previous data. The liquid oxide/slag phase was described using the modified quasichemical model. New optimized parameters of the thermodynamic models for the Gibbs energies of slag and other phases in the selected system were obtained. The new parameters reproduce all available phase equilibria and thermodynamic data within the experimental error limits from 298 K (25 degrees C) to above the liquidus temperatures at all compositions and oxygen partial pressures from metal saturation to 1 atm of O-2. This study was carried out as part of the development of a self-consistent thermodynamic database for the Al-Ca-Cu-Fe-Mg-Si-O-S multi-component system.
引用
收藏
页码：477 / 492
页数：16
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