Crystal chemistry and molecular mechanisms in molten magmas: The significance of fusion in reactions of solids
Crystal chemistry and molecular mechanisms in molten magmas: The significance of fusion in reactions of solids
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DOI：
10.1016/0040-6031(95)02355-0
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发表时间：
1995-01-01
影响因子：
3.5
通讯作者：
Galwey, AK
中科院分区：
文献类型：
--
作者：
Galwey, AK
在动力学数据的解释和反应机理的表述中，熔解在初始固体反应物的热反应中可能起的作用并不总是被明确考虑。本文讨论了反应性增强的原因，并比较了非均相（固态）反应和均相反应的速率特征。讨论了用分析数据和微观结构观测补充动力学测量的价值。这种方法在阐明有意义的反应机制方面的重要性是通过考虑选定的反应动力学研究的特征来说明的，这些反应研究表明，在最初似乎以固态进行的化学变化过程中，可能存在局部和暂时的融合或液体中间物形成的基本参与。文中讨论了文献实例。
The possible role of melting in thermal reactions of initially solid reactants is not always explicitly considered in the interpretation of kinetic data and the formulation of reaction mechanisms. The present paper discusses reasons for the enhancement of reactivity on fusion and contrasts the rate characteristics of heterogeneous (solid state) with homogeneous reactions. The value of complementing kinetic measurements with analytical data and microscopic textural observations is discussed. The importance of this approach in elucidating meaningful reaction mechanisms is illustrated by considering features of selected kinetic studies of reactions in which it was demonstrated that there was the essential participation of perhaps local and temporary fusion or liquid intermediate formation during chemical changes that had initially appeared to proceed in the solid state. Literature examples are discussed in the text.