Toward broadband mechanical spectroscopy
Diverse material classes exhibit qualitatively similar behavior when made viscous upon cooling toward the glass transition, suggesting a common theoretical basis. We used seven different measurement methods to determine the mechanical relaxation kinetics of a prototype molecular glass former over a...
| Main Authors: | , , , , , |
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| Format: | Article |
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National Academy of Sciences (U.S.)
2018
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| Online Access: | http://hdl.handle.net/1721.1/113387 https://orcid.org/0000-0001-7804-5418 |
| _version_ | 1811092782144552960 |
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| author | Hecksher, Tina Dyre, Jeppe C. Torchinsky, Darius H. Klieber, Christoph Johnson, Jeremy Andrew Nelson, Keith Adam |
| author2 | Massachusetts Institute of Technology. Department of Chemistry |
| author_facet | Massachusetts Institute of Technology. Department of Chemistry Hecksher, Tina Dyre, Jeppe C. Torchinsky, Darius H. Klieber, Christoph Johnson, Jeremy Andrew Nelson, Keith Adam |
| author_sort | Hecksher, Tina |
| collection | MIT |
| description | Diverse material classes exhibit qualitatively similar behavior when made viscous upon cooling toward the glass transition, suggesting a common theoretical basis. We used seven different measurement methods to determine the mechanical relaxation kinetics of a prototype molecular glass former over a temporal range of 13 decades and over a temperature range spanning liquid to glassy states. The data conform to time–temperature superposition for the main (alpha) process and to a scaling relation of schematic mode-coupling theory. The broadband mechanical measurements demonstrated have fundamental and practical applications in polymer science, geophysics, multifunctional materials, and other areas. Keywords: viscous liquids; broadband mechanical spectroscopy; mode-coupling theory |
| first_indexed | 2024-09-23T15:25:38Z |
| format | Article |
| id | mit-1721.1/113387 |
| institution | Massachusetts Institute of Technology |
| last_indexed | 2024-09-23T15:25:38Z |
| publishDate | 2018 |
| publisher | National Academy of Sciences (U.S.) |
| record_format | dspace |
| spelling | mit-1721.1/1133872022-10-02T02:40:31Z Toward broadband mechanical spectroscopy Hecksher, Tina Dyre, Jeppe C. Torchinsky, Darius H. Klieber, Christoph Johnson, Jeremy Andrew Nelson, Keith Adam Massachusetts Institute of Technology. Department of Chemistry Massachusetts Institute of Technology. Department of Physics Torchinsky, Darius H. Klieber, Christoph Johnson, Jeremy Andrew Nelson, Keith Adam Diverse material classes exhibit qualitatively similar behavior when made viscous upon cooling toward the glass transition, suggesting a common theoretical basis. We used seven different measurement methods to determine the mechanical relaxation kinetics of a prototype molecular glass former over a temporal range of 13 decades and over a temperature range spanning liquid to glassy states. The data conform to time–temperature superposition for the main (alpha) process and to a scaling relation of schematic mode-coupling theory. The broadband mechanical measurements demonstrated have fundamental and practical applications in polymer science, geophysics, multifunctional materials, and other areas. Keywords: viscous liquids; broadband mechanical spectroscopy; mode-coupling theory National Science Foundation (U.S.) (Grant CHE-1111557) United States. Department of Energy (Grant DE-FG02-00ER15087) 2018-02-02T14:08:15Z 2018-02-02T14:08:15Z 2017-08 2018-01-31T14:21:22Z Article http://purl.org/eprint/type/JournalArticle 0027-8424 1091-6490 http://hdl.handle.net/1721.1/113387 Hecksher, Tina et al. “Toward Broadband Mechanical Spectroscopy.” Proceedings of the National Academy of Sciences 114, 33 (August 2017): 8710–8715 © 2017 National Academy of Sciences https://orcid.org/0000-0001-7804-5418 http://dx.doi.org/10.1073/PNAS.1707251114 Proceedings of the National Academy of Sciences Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf National Academy of Sciences (U.S.) PNAS |
| spellingShingle | Hecksher, Tina Dyre, Jeppe C. Torchinsky, Darius H. Klieber, Christoph Johnson, Jeremy Andrew Nelson, Keith Adam Toward broadband mechanical spectroscopy |
| title | Toward broadband mechanical spectroscopy |
| title_full | Toward broadband mechanical spectroscopy |
| title_fullStr | Toward broadband mechanical spectroscopy |
| title_full_unstemmed | Toward broadband mechanical spectroscopy |
| title_short | Toward broadband mechanical spectroscopy |
| title_sort | toward broadband mechanical spectroscopy |
| url | http://hdl.handle.net/1721.1/113387 https://orcid.org/0000-0001-7804-5418 |
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