Process-morphology scaling relations quantify self-organization in capillary densified nanofiber arrays
Capillary-mediated densification is an inexpensive and versatile approach to tune the application-specific properties and packing morphology of bulk nanofiber (NF) arrays, such as aligned carbon nanotubes. While NF length governs elasto-capillary self-assembly, the geometry of cellular patterns form...
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| Format: | Article |
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Royal Society of Chemistry (RSC)
2018
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| Online Access: | http://hdl.handle.net/1721.1/116889 https://orcid.org/0000-0003-3229-7315 https://orcid.org/0000-0003-3530-5819 |
| _version_ | 1826194318140899328 |
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| author | Kaiser, Ashley L Stein, Itai Y Cui, Kehang Wardle, Brian L |
| author2 | Massachusetts Institute of Technology. Department of Aeronautics and Astronautics |
| author_facet | Massachusetts Institute of Technology. Department of Aeronautics and Astronautics Kaiser, Ashley L Stein, Itai Y Cui, Kehang Wardle, Brian L |
| author_sort | Kaiser, Ashley L |
| collection | MIT |
| description | Capillary-mediated densification is an inexpensive and versatile approach to tune the application-specific properties and packing morphology of bulk nanofiber (NF) arrays, such as aligned carbon nanotubes. While NF length governs elasto-capillary self-assembly, the geometry of cellular patterns formed by capillary densified NFs cannot be precisely predicted by existing theories. This originates from the recently quantified orders of magnitude lower than expected NF array effective axial elastic modulus (E), and here we show via parametric experimentation and modeling that E determines the width, area, and wall thickness of the resulting cellular pattern. Both experiments and models show that further tuning of the cellular pattern is possible by altering the NF-substrate adhesion strength, which could enable the broad use of this facile approach to predictably pattern NF arrays for high value applications. |
| first_indexed | 2024-09-23T09:54:11Z |
| format | Article |
| id | mit-1721.1/116889 |
| institution | Massachusetts Institute of Technology |
| last_indexed | 2024-09-23T09:54:11Z |
| publishDate | 2018 |
| publisher | Royal Society of Chemistry (RSC) |
| record_format | dspace |
| spelling | mit-1721.1/1168892022-09-26T14:27:55Z Process-morphology scaling relations quantify self-organization in capillary densified nanofiber arrays Kaiser, Ashley L Stein, Itai Y Cui, Kehang Wardle, Brian L Massachusetts Institute of Technology. Department of Aeronautics and Astronautics Massachusetts Institute of Technology. Department of Materials Science and Engineering Massachusetts Institute of Technology. Department of Mechanical Engineering Kaiser, Ashley L Stein, Itai Y Cui, Kehang Wardle, Brian L Capillary-mediated densification is an inexpensive and versatile approach to tune the application-specific properties and packing morphology of bulk nanofiber (NF) arrays, such as aligned carbon nanotubes. While NF length governs elasto-capillary self-assembly, the geometry of cellular patterns formed by capillary densified NFs cannot be precisely predicted by existing theories. This originates from the recently quantified orders of magnitude lower than expected NF array effective axial elastic modulus (E), and here we show via parametric experimentation and modeling that E determines the width, area, and wall thickness of the resulting cellular pattern. Both experiments and models show that further tuning of the cellular pattern is possible by altering the NF-substrate adhesion strength, which could enable the broad use of this facile approach to predictably pattern NF arrays for high value applications. United States. National Aeronautics and Space Administration (Grant NNX17AJ32G) 2018-07-11T14:57:16Z 2018-07-11T14:57:16Z 2018-01 2017-10 2018-07-11T14:22:47Z Article http://purl.org/eprint/type/JournalArticle 1463-9076 1463-9084 http://hdl.handle.net/1721.1/116889 Kaiser, Ashley L. et al. “Process-Morphology Scaling Relations Quantify Self-Organization in Capillary Densified Nanofiber Arrays.” Physical Chemistry Chemical Physics 20, 6 (2018): 3876–3881 © 2018 Owner Societies https://orcid.org/0000-0003-3229-7315 https://orcid.org/0000-0003-3530-5819 http://dx.doi.org/10.1039/C7CP06869G Physical Chemistry Chemical Physics Creative Commons Attribution 3.0 Unported license http://creativecommons.org/licenses/by/3.0/ application/pdf Royal Society of Chemistry (RSC) Royal Society of Chemistry |
| spellingShingle | Kaiser, Ashley L Stein, Itai Y Cui, Kehang Wardle, Brian L Process-morphology scaling relations quantify self-organization in capillary densified nanofiber arrays |
| title | Process-morphology scaling relations quantify self-organization in capillary densified nanofiber arrays |
| title_full | Process-morphology scaling relations quantify self-organization in capillary densified nanofiber arrays |
| title_fullStr | Process-morphology scaling relations quantify self-organization in capillary densified nanofiber arrays |
| title_full_unstemmed | Process-morphology scaling relations quantify self-organization in capillary densified nanofiber arrays |
| title_short | Process-morphology scaling relations quantify self-organization in capillary densified nanofiber arrays |
| title_sort | process morphology scaling relations quantify self organization in capillary densified nanofiber arrays |
| url | http://hdl.handle.net/1721.1/116889 https://orcid.org/0000-0003-3229-7315 https://orcid.org/0000-0003-3530-5819 |
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