Al/Fe_2O_3反应合成材料热力学

Thermodynamics of Al/Fe_2O_3 Reaction Synthesis Materials

运用CALPHAD技术,基于多组元多相复杂平衡体系的吉布斯自由能最小化原理,用大型集成数据库F A C T系统,考察了铝和氧化铁经典反应体系的热力学规律。针对材料的反应合成技术,计算了化学计量铝和氧化铁体系以及各种产物中物种的相变情况;分析了原料初始温度、配料比和SiO2含量对绝热温度和平衡组成的影响。

Based on the minimization principle of free Gibbs energy of multi-component and multi-phase system using CALPHAD technique,the thermo-dynamical traditional Al+Fe2O3 reaction system is examined with FACT system of large integrated dada-base.Aimed at the reaction synthesizing of materials,the material phase-change of stoichiometric Al-Fe2O3 system and other products are calculated.The influence of start temperature,charge combination ratio and SiO2 content on the adiabatic temperature and equilibrium composition are analyzed.