Experimental determination of the liquidus in the high basicity region in the Al2O3(30 mass%)-CaO-MgO-SiO2 system

被引：24

作者：

Gran, Jimmy ^{[1
]}

Wang, Yanli ^{[2
]}

Sichen, Du ^{[1
]}

机构：

[1] Royal Inst Technol, Dept Mat Sci & Engn, S-10044 Stockholm, Sweden

[2] Univ Sci & Technol Beijing, Lab Adv Met & Mat, Beijing 100083, Peoples R China

来源：

CALPHAD-COMPUTER COUPLING OF PHASE DIAGRAMS AND THERMOCHEMISTRY | 2011年 / 35卷 / 02期

关键词：

Al2O3-CaO-MgO-SiO2; Phase diagram; Solubility; EPMA;

D O I：

10.1016/j.calphad.2010.11.004

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The liquidus in the high basicity region in the Al2O3(30 mass%)-CaO-MgO-SiO2 system were determined experimentally at 1773 and 1873 K using the quench technique followed by EPMA analysis. Based on the experimental data, a phase diagram of the Al2O3(30 mass%)-CaO-MgO-SiO2(< 20 mass%) section was constructed for 1773 and 1873 K. The solubilities of 2CaO center dot SiO2 and 3CaO center dot SiO2 at 1773 K were found to be considerably higher in comparison with the existing phase diagram. Even the solubility of MgO at 1873 K was found to be somewhat higher. In addition, the activities of MgO, CaO and Al2O3 at 1773 K were estimated using the phase diagram information. (C) 2010 Elsevier Ltd. All rights reserved.

引用

页码：249 / 254

页数：6

共 10 条

[1]

Cavalier G., 1960, Rev. Met. Paris, V57, P1143

[2] Characterization of melting of some slags in the Al2O3-CaO-MgO-SiO2 quaternary system [J].

Dahl, Fredrik ;

Brandberg, Jenny ;

Sichen, Du .

ISIJ INTERNATIONAL, 2006, 46 (04) :614-616

[3] Activities of the constituents in spinel solid solution and free energies of formation of MgO, MgO •Al2O3 [J].

Fujii, K ;

Nagasaka, T ;

Hino, M .

ISIJ INTERNATIONAL, 2000, 40 (11) :1059-1066

[4] STUDIES OF SYSTEM CAO-SIO2-AL2O3-MGO IN RELATION TO STABILITY OF BLAST-FURNACE SLAG [J].

GUTT, W ;

RUSSELL, AD .

JOURNAL OF MATERIALS SCIENCE, 1977, 12 (09) :1869-1878

[5] ON THE DILUTE-SOLUTION LAWS FOR IONIC COMPOUNDS [J].

HALLSTEDT, B ;

HILLERT, M .

CALPHAD-COMPUTER COUPLING OF PHASE DIAGRAMS AND THERMOCHEMISTRY, 1990, 14 (01) :23-26

[6] THERMODYNAMIC ASSESSMENT OF THE SYSTEM MGO-AL2O3 [J].

HALLSTEDT, B .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1992, 75 (06) :1497-1507

[7]

Knacke O., 1991, Thermochemical Properties of Inorganic Substances, V2

[8]

OSBORN EF, 1954, T AM I MIN MET ENG, V200, P33

[9]

REIN HR, 1965, J MET, V233, P415

[10]

1995, VEREIN DTSCH EISENHU, P156

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