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Iso-conversional kinetic analysis of quaternary glass re-crystallization

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 cons...

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Detalles Bibliográficos
Autores principales: Srivastava, Ankita, Chandel, Namrata, Mehta, Neeraj
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Elsevier 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5318273/
https://www.ncbi.nlm.nih.gov/pubmed/28239672
http://dx.doi.org/10.1016/j.heliyon.2017.e00249
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author Srivastava, Ankita
Chandel, Namrata
Mehta, Neeraj
author_facet Srivastava, Ankita
Chandel, Namrata
Mehta, Neeraj
author_sort Srivastava, Ankita
collection PubMed
description 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.
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spelling pubmed-53182732017-02-26 Iso-conversional kinetic analysis of quaternary glass re-crystallization Srivastava, Ankita Chandel, Namrata Mehta, Neeraj Heliyon Article 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. Elsevier 2017-02-20 /pmc/articles/PMC5318273/ /pubmed/28239672 http://dx.doi.org/10.1016/j.heliyon.2017.e00249 Text en © 2017 The Authors http://creativecommons.org/licenses/by-nc-nd/4.0/ This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
spellingShingle Article
Srivastava, Ankita
Chandel, Namrata
Mehta, Neeraj
Iso-conversional kinetic analysis of quaternary glass re-crystallization
title Iso-conversional kinetic analysis of quaternary glass re-crystallization
title_full Iso-conversional kinetic analysis of quaternary glass re-crystallization
title_fullStr Iso-conversional kinetic analysis of quaternary glass re-crystallization
title_full_unstemmed Iso-conversional kinetic analysis of quaternary glass re-crystallization
title_short Iso-conversional kinetic analysis of quaternary glass re-crystallization
title_sort iso-conversional kinetic analysis of quaternary glass re-crystallization
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5318273/
https://www.ncbi.nlm.nih.gov/pubmed/28239672
http://dx.doi.org/10.1016/j.heliyon.2017.e00249
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