The sample size effect in metallic glass deformation

Abstract The sample size effect on deformation mode of glasses is one of the most misunderstood properties of this class of material. This effect is intriguing, since materials deemed macroscopically brittle become plastic at small size. We propose an explanation of this phenomenon for metallic glas...

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Autores principales:	Yannick Champion, Nicolas Thurieau
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2020
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/308056e08b8a47cebe6112521873c1c8
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spelling	oai:doaj.org-article:308056e08b8a47cebe6112521873c1c82021-12-02T16:32:12ZThe sample size effect in metallic glass deformation10.1038/s41598-020-67813-w2045-2322https://doaj.org/article/308056e08b8a47cebe6112521873c1c82020-07-01T00:00:00Zhttps://doi.org/10.1038/s41598-020-67813-whttps://doaj.org/toc/2045-2322Abstract The sample size effect on deformation mode of glasses is one of the most misunderstood properties of this class of material. This effect is intriguing, since materials deemed macroscopically brittle become plastic at small size. We propose an explanation of this phenomenon for metallic glasses. A thermodynamic description of the local rearrangement zones activated under an applied stress is proposed. Using the Poisson distribution to describe the statistics of these zones and the statistical physics to associate entropy, we define a critical sample size for the change in the deformation mode. Predictions are in agreement with experimental observations and reveal hidden structural parameters describing the glassy state.Yannick ChampionNicolas ThurieauNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 10, Iss 1, Pp 1-7 (2020)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Yannick Champion Nicolas Thurieau The sample size effect in metallic glass deformation
description	Abstract The sample size effect on deformation mode of glasses is one of the most misunderstood properties of this class of material. This effect is intriguing, since materials deemed macroscopically brittle become plastic at small size. We propose an explanation of this phenomenon for metallic glasses. A thermodynamic description of the local rearrangement zones activated under an applied stress is proposed. Using the Poisson distribution to describe the statistics of these zones and the statistical physics to associate entropy, we define a critical sample size for the change in the deformation mode. Predictions are in agreement with experimental observations and reveal hidden structural parameters describing the glassy state.
format	article
author	Yannick Champion Nicolas Thurieau
author_facet	Yannick Champion Nicolas Thurieau
author_sort	Yannick Champion
title	The sample size effect in metallic glass deformation
title_short	The sample size effect in metallic glass deformation
title_full	The sample size effect in metallic glass deformation
title_fullStr	The sample size effect in metallic glass deformation
title_full_unstemmed	The sample size effect in metallic glass deformation
title_sort	sample size effect in metallic glass deformation
publisher	Nature Portfolio
publishDate	2020
url	https://doaj.org/article/308056e08b8a47cebe6112521873c1c8
work_keys_str_mv	AT yannickchampion thesamplesizeeffectinmetallicglassdeformation AT nicolasthurieau thesamplesizeeffectinmetallicglassdeformation AT yannickchampion samplesizeeffectinmetallicglassdeformation AT nicolasthurieau samplesizeeffectinmetallicglassdeformation
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The sample size effect in metallic glass deformation

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