The pitfalls of empirical fitting of glass relaxation data with stretched exponents

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Show simple item record Atzmon, Michael 2020-10-14T21:35:29Z 2020-10-14T21:35:29Z 2018-02-09
dc.identifier.citation J. Appl. Phys. 123, 065103 (2018). en_US
dc.description.abstract A stretched exponent is commonly used to fit experimental relaxation data for glasses, which typically exhibit a range of time constants. While it has been supported by theory for various processes, mostly near and above the glass transition temperature, Tg, it is also commonly used in phenomenological fits below Tg without a mechanistic model. The properties of the stretched exponent, and sample data for the enthalpy release and dynamic-mechanical response of metallic glasses, are used to show that in the absence of a mechanistic model, stretched-exponent fits easily lead to artifacts and flawed conclusions. en_US
dc.description.sponsorship National Science Foundation en_US
dc.language.iso en_US en_US
dc.publisher American Institute of Physics en_US
dc.title The pitfalls of empirical fitting of glass relaxation data with stretched exponents en_US
dc.type Article en_US
dc.subject.hlbsecondlevel Materials Science and Engineering
dc.subject.hlbtoplevel Engineering
dc.description.peerreviewed Peer Reviewed en_US
dc.contributor.affiliationum Nuclear Engineering and Radiological Sciences, Department of en_US
dc.contributor.affiliationum Materials Science and Engineering, Department of en_US
dc.contributor.affiliationumcampus Ann Arbor en_US
dc.description.bitstreamurl JAP 2018.pdf
dc.identifier.source Journal of Applied Physics en_US
dc.description.mapping -1 en_US
dc.identifier.orcid en_US
dc.description.filedescription Description of Atzmon JAP 2018.pdf : Article
dc.description.depositor SELF en_US Atzmon, Michael; 0000-0002-7055-1313 en_US
dc.owningcollname Materials Science and Engineering, Department of
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