Srivastava Ankita, Chandel Namrata, Mehta Neeraj
Department of Physics, Institute of Science, Banaras Hindu University, Varanasi 221005, India.
Heliyon. 2017 Feb 20;3(2):e00249. doi: 10.1016/j.heliyon.2017.e00249. eCollection 2017 Feb.
Iso-conversional kinetic analysis is popular in scientific community for analyzing solid-state reactions (e.g., glass/amorphous and amorphous/crystal phase transformations, re-crystallization etc). It is a recognized significant tool to achieve useful outcomes for the solid state reaction under consideration. Present work is devoted to explore some insights of thermally activated crystallization using various heating rates (VHR) method. We have examined the correlation between iso-conversional activation energy and iso-conversional rate of crystal growth. In fact, we have observed the compensation law and iso-kinetic relationship using two different approaches for the study of crystallization phenomenon that drives thermally in an Arrhenian manner. Moreover, we found that the estimated intercepts and gradients (i.e., Meyer-Neldel energy and Meyer-Neldel pre-factor respectively) for both approaches also vary linearly and both sets are remarkably identical. These results approach to an inference for ensuring the equivalence of compensation law and iso-kinetic relationship and provide an understanding of various advanced materials in physical chemistry, materials sciences and solid-state physics.
等转化率动力学分析在科学界中广泛用于分析固态反应（例如，玻璃/非晶态和非晶态/晶相转变、再结晶等）。它是一种公认的重要工具，可用于实现所考虑的固态反应的有用结果。目前的工作致力于探索使用各种加热速率（VHR）方法对热活化结晶的一些见解。我们研究了等转化率活化能与晶体生长的等转化率速率之间的相关性。事实上，我们使用两种不同的方法研究以阿累尼乌斯方式热驱动的结晶现象时，观察到了补偿定律和等动力学关系。此外，我们发现两种方法的估计截距和梯度（即分别为迈耶-内德尔能量和迈耶-内德尔前置因子）也呈线性变化，并且两组非常相同。这些结果趋向于一个推论，以确保补偿定律和等动力学关系的等效性，并为物理化学、材料科学和固态物理学中的各种先进材料提供理解。
