Thermodynamic modelling of an Al2O3-MnO system using the ionic model

被引：5
作者：
Farina, Alexandre Bellegard [1 ]
Beneduce Neto, Flavio [2 ]
机构：
[1] Univ Sao Paulo, Escola Politecn, BR-05508 Sao Paulo, Brazil
[2] Inst Pesquisas Tecnol Sao Paulo, Sao Paulo, Brazil
来源：
CALPHAD-COMPUTER COUPLING OF PHASE DIAGRAMS AND THERMOCHEMISTRY | 2009年 / 33卷 / 04期
关键词：
Thermodynamic modelling; ThermoCalc (R); Optimization; Al2O3-MnO; SOLID-SOLUTIONS; PHASE-DIAGRAMS; OPTIMIZATION; ALUMINATE; MNO-AL2O3;
D O I：
10.1016/j.calphad.2009.09.003
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
The thermodynamic assessment of an Al2O3-MnO pseudo-binary system has been carried out with the use of an ionic model. The use of the electro-neutrality principles in addition to the constitutive relations, between site fractions of the species on each sub-lattice, the thermodynamics descriptions of each solid phase has been determined to make possible the solubility description. Based on the thermodynamics descriptions of each phase in addition to thermo-chemical data obtained from the literature, the Gibbs energy functions were optimized for each phase of the Al2O3-MnO system with the support of PARROT(R) module from ThemoCalc(R) package. A thermodynamic database was obtained, in agreement with the thermo-chemical data extracted from the literature, to describe the Al2O3-MnO system including the solubility description of solid phases. (C) 2009 Elsevier Ltd. All rights reserved.
引用
收藏
页码：711 / 718
页数：8
相关论文
共 30 条
  • [1] ATLAS S, 1995, STAHLEISEN, P45
  • [2] Barry T.I., 1992, J PHASE EQUILIB, V13, P459, DOI [10.1007/BF02665760, DOI 10.1007/BF02665760]
  • [3] CONTROL OF THE MANGANESE-OXYGEN REACTION IN PURE IRON MELTS
    DIMITROV, S
    WEYL, A
    JANKE, D
    [J]. STEEL RESEARCH, 1995, 66 (03): : 87 - 92
  • [4] CRITICAL-EVALUATION AND OPTIMIZATION OF THE THERMODYNAMIC PROPERTIES AND PHASE-DIAGRAMS OF THE CAO-AL2O3, AL2O3-SIO2, AND CAO-AL2O3-SIO2 SYSTEMS
    ERIKSSON, G
    PELTON, AD
    [J]. METALLURGICAL TRANSACTIONS B-PROCESS METALLURGY, 1993, 24 (05): : 807 - 816
  • [5] CRITICAL-EVALUATION AND OPTIMIZATION OF THE THERMODYNAMIC PROPERTIES AND PHASE-DIAGRAMS OF THE MNO-TIO2, MGO-TIO2, FEO-TIO2, TI2O3-TIO2, NA2O-TIO2, AND K2O-TIO2 SYSTEMS
    ERIKSSON, G
    PELTON, AD
    [J]. METALLURGICAL TRANSACTIONS B-PROCESS METALLURGY, 1993, 24 (05): : 795 - 805
  • [6] FARINA AB, P 61 C ABM 2006 RIO
  • [7] Remarks about data reliability in experimental and computational alloy thermochemistry
    Ferro, R
    Cacciamani, G
    Borzone, G
    [J]. INTERMETALLICS, 2003, 11 (11-12) : 1081 - 1094
  • [8] THERMODYNAMIC ASSESSMENT OF THE SYSTEM MGO-AL2O3
    HALLSTEDT, B
    [J]. JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1992, 75 (06) : 1497 - 1507
  • [9] MODELING OF ACID AND BASIC SLAGS
    HALLSTEDT, B
    HILLERT, M
    SELLEBY, M
    SUNDMAN, B
    [J]. CALPHAD-COMPUTER COUPLING OF PHASE DIAGRAMS AND THERMOCHEMISTRY, 1994, 18 (01): : 31 - 37
  • [10] HAY R, 1934, J W SCOT IRON STEEL, V42, P99
123