【摘 要】
：
为了研究镁铁质材料中粘结相铁酸镁的生成反应过程,使用轻烧镁粉和分析纯试剂Fe2O3粉混合料,在静态空气中分别以10,15,20 K.min-1的升温速率进行了铁酸镁合成反应的DSC实验研
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为了研究镁铁质材料中粘结相铁酸镁的生成反应过程,使用轻烧镁粉和分析纯试剂Fe2O3粉混合料,在静态空气中分别以10,15,20 K.min-1的升温速率进行了铁酸镁合成反应的DSC实验研究,并用Kissinger、Flynn-Wall-Ozawa和Achar-Brindley-Sharp-Wendworth三种方法进行了反应动力学特征参数计算.研究结果显示,铁酸镁生成机理满足随机形核与长大机理模型,反应的活化能介于626.83~652.60 kJ.mol-1之间.
In order to study the formation process of the binder phase of magnesium ferrite in mafic materials, using light-burned magnesium powder and analytical reagent Fe2O3 powder mixture, heated in static air at 10,15,20 K.min-1 DSC experiment was carried out on the reaction of magnesium ferrite synthesis and the kinetic parameters were calculated by Kissinger, Flynn-Wall-Ozawa and Achar-Brindley-Sharp-Wendworth methods.The results showed that the formation mechanism of magnesium ferrite The model satisfies the random nucleation and growth mechanism, and the activation energy of the reaction is between 626.83 ~ 652.60 kJ · mol-1.
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