Critical Evaluation and Thermodynamic Optimization of the CaO-P2O5 System

被引:30
作者
Hudon, Pierre [1 ]
Jung, In-Ho [1 ]
机构
[1] McGill Univ, Dept Min & Mat Engn, Montreal, PQ H3A 0C5, Canada
来源
METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE | 2015年 / 46卷 / 01期
基金
加拿大自然科学与工程研究理事会;
关键词
BETA-TRICALCIUM PHOSPHATE; HIGH-TEMPERATURE MODIFICATION; TIN-ACTIVATED LUMINESCENCE; PHASE-EQUILIBRIUM DIAGRAM; CRYSTAL-STRUCTURE; CALCIUM ULTRAPHOSPHATE; CRYSTALLOGRAPHIC DATA; ALPHA-TRICALCIUM; STABILIZING IMPURITY; VIBRATIONAL-SPECTRA;
D O I
10.1007/s11663-014-0193-x
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
A critical evaluation and thermodynamic optimization of all available experimental data of the CaO-P2O5 system was performed to obtain a set of thermodynamic functions which can reproduce all available and reliable experimental phase diagram and thermodynamic data. The modified quasichemical model, which takes into account short range ordering, was employed to describe the thermodynamic properties of the liquid phase. Discrepancies observed in the Gibbs energy of formation of the compounds were resolved and phase diagram and thermodynamic data of all the solid and liquid phases were well reproduced within experimental errors limits including the sharp liquidus of Ca-3(PO4)(2). (C) The Minerals, Metals & Materials Society and ASM International 2014
引用
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页码:494 / 522
页数:29
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