Viscosity Measurements of SiO2-"FeO"-MgO System in Equilibrium with Metallic Fe

被引：20
作者：
Chen, Mao [1 ]
Raghunath, Sreekanth [1 ]
Zhao, Baojun [1 ]
机构：
[1] Univ Queensland, Sch Chem Engn, Brisbane, Qld, Australia
来源：
METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE | 2014年 / 45卷 / 01期
关键词：
SLAGS; MODEL;
D O I：
10.1007/s11663-013-9917-6
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The present study delivers the measurements of viscosities in the SiO2-"FeO"-MgO system in equilibrium with metallic Fe. The rotational spindle technique was used for the measurements at the temperature range of 1523 K to 1773 K (1250 A degrees C to 1500 A degrees C). Molybdenum crucibles and spindles were employed in all measurements. The viscosity measurements were carried out at 31 to 47 mol pct SiO2 and up to 18.8 mol pct MgO. Analysis of the quenched sample by Electron probe X-ray microanalysis after the viscosity measurement enables the composition and microstructure of the slag to be directly linked with the viscosity. The replacement of "FeO" by MgO was found to increase viscosity and activation energy of the SiO2-"FeO"-MgO slags. The modified Quasi-chemical Viscosity Model was further optimized in this system based on the current viscosity measurements.
引用
收藏
页码：58 / 65
页数：8
相关论文
共 12 条
[1]  
Atkins P.W., 1990, PHYS CHEM, P671
[2]   FactSage thermochemical software and databases [J].
Bale, C ;
Chartrand, P ;
Degterov, SA ;
Eriksson, G ;
Hack, K ;
Ben Mahfoud, R ;
Melançon, J ;
Pelton, AD ;
Petersen, S .
CALPHAD-COMPUTER COUPLING OF PHASE DIAGRAMS AND THERMOCHEMISTRY, 2002, 26 (02) :189-228
[3]   Viscosity of SiO2-"FeO"-Al2O3 System in Equilibrium with Metallic Fe [J].
Chen, Mao ;
Raghunath, Sreekanth ;
Zhao, Baojun .
METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE, 2013, 44 (04) :820-827
[4]   Viscosity Measurements of "FeO"-SiO2 Slag in Equilibrium with Metallic Fe [J].
Chen, Mao ;
Raghunath, Sreekanth ;
Zhao, Baojun .
METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE, 2013, 44 (03) :506-515
[5]   The theory of the liquid state [J].
Eyring, H ;
Hirschfelder, J .
JOURNAL OF PHYSICAL CHEMISTRY, 1937, 41 (02) :249-257
[6]  
Ji FZ, 1998, IRONMAK STEELMAK, V25, P309
[7]   Development of a quasi-chemical viscosity model for fully liquid slags in the Al2O3-CaO-'FeO'-MgO-SiO2 system.: Part 1.: Description of the model and its application to the MgO, MgO-SiO2, Al2O3-MgO and CaO-MgO sub-systems [J].
Kondratiev, A ;
Hayes, PC ;
Jak, E .
ISIJ INTERNATIONAL, 2006, 46 (03) :359-367
[8]  
KUCHARSKI M, 1989, CAN METALL QUART, V28, P7
[9]   The modified quasichemical model I - Binary solutions [J].
Pelton, AD ;
Degterov, SA ;
Eriksson, G ;
Robelin, C ;
Dessureault, Y .
METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE, 2000, 31 (04) :651-659
[10]  
Suzuki M., 2012, P 9 INT C MOLT SLAGS
12