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A method to quantify crystallinity in amorphous metal alloys: A differential scanning calorimetry study

We developed and describe a differential scanning calorimetry method for calculating the initial crystallinity, change of crystallinity and crystallinity percentage of amorphous metal alloys as a function of temperature. Using thermodynamic enthalpies of amorphous, crystalline and partially devitrif...

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Detalles Bibliográficos
Autores principales: Yazdani, Arash, Höhne, Günther W. H., Misture, Scott T., Graeve, Olivia A.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Public Library of Science 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7307789/
https://www.ncbi.nlm.nih.gov/pubmed/32569283
http://dx.doi.org/10.1371/journal.pone.0234774
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author Yazdani, Arash
Höhne, Günther W. H.
Misture, Scott T.
Graeve, Olivia A.
author_facet Yazdani, Arash
Höhne, Günther W. H.
Misture, Scott T.
Graeve, Olivia A.
author_sort Yazdani, Arash
collection PubMed
description We developed and describe a differential scanning calorimetry method for calculating the initial crystallinity, change of crystallinity and crystallinity percentage of amorphous metal alloys as a function of temperature. Using thermodynamic enthalpies of amorphous, crystalline and partially devitrified specimens, our methodology is capable of determining crystallinity percentages as low as a few percent. Moreover, the linear relationship between the set (pre-determined) and calculated crystallinities of experimental samples indicates that there is no need to prepare calibration samples before measuring the crystallinity percentage of target samples. This technique also eliminates the need for expensive in situ accessories, such as those required in electron microscopy. Thus, the technique is highly relevant as a primary technique for characterization of devitrification behavior in amorphous materials.
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spelling pubmed-73077892020-06-25 A method to quantify crystallinity in amorphous metal alloys: A differential scanning calorimetry study Yazdani, Arash Höhne, Günther W. H. Misture, Scott T. Graeve, Olivia A. PLoS One Research Article We developed and describe a differential scanning calorimetry method for calculating the initial crystallinity, change of crystallinity and crystallinity percentage of amorphous metal alloys as a function of temperature. Using thermodynamic enthalpies of amorphous, crystalline and partially devitrified specimens, our methodology is capable of determining crystallinity percentages as low as a few percent. Moreover, the linear relationship between the set (pre-determined) and calculated crystallinities of experimental samples indicates that there is no need to prepare calibration samples before measuring the crystallinity percentage of target samples. This technique also eliminates the need for expensive in situ accessories, such as those required in electron microscopy. Thus, the technique is highly relevant as a primary technique for characterization of devitrification behavior in amorphous materials. Public Library of Science 2020-06-22 /pmc/articles/PMC7307789/ /pubmed/32569283 http://dx.doi.org/10.1371/journal.pone.0234774 Text en © 2020 Yazdani et al http://creativecommons.org/licenses/by/4.0/ This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
spellingShingle Research Article
Yazdani, Arash
Höhne, Günther W. H.
Misture, Scott T.
Graeve, Olivia A.
A method to quantify crystallinity in amorphous metal alloys: A differential scanning calorimetry study
title A method to quantify crystallinity in amorphous metal alloys: A differential scanning calorimetry study
title_full A method to quantify crystallinity in amorphous metal alloys: A differential scanning calorimetry study
title_fullStr A method to quantify crystallinity in amorphous metal alloys: A differential scanning calorimetry study
title_full_unstemmed A method to quantify crystallinity in amorphous metal alloys: A differential scanning calorimetry study
title_short A method to quantify crystallinity in amorphous metal alloys: A differential scanning calorimetry study
title_sort method to quantify crystallinity in amorphous metal alloys: a differential scanning calorimetry study
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7307789/
https://www.ncbi.nlm.nih.gov/pubmed/32569283
http://dx.doi.org/10.1371/journal.pone.0234774
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