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- Publisher Website: 10.1103/PhysRevLett.117.175901
- Scopus: eid_2-s2.0-84994029478
- PMID: 27824463
- WOS: WOS:000386393300007
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Article: Lightweight Mechanical Metamaterials with Tunable Negative Thermal Expansion
Title | Lightweight Mechanical Metamaterials with Tunable Negative Thermal Expansion |
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Authors | |
Issue Date | 2016 |
Citation | Physical Review Letters, 2016, v. 117, n. 17, article no. 175901 How to Cite? |
Abstract | Ice floating on water is a great manifestation of negative thermal expansion (NTE) in nature. The limited examples of natural materials possessing NTE have stimulated research on engineered structures. Previous studies on NTE structures were mostly focused on theoretical design with limited experimental demonstration in two-dimensional planar geometries. In this work, aided with multimaterial projection microstereolithography, we experimentally fabricate lightweight multimaterial lattices that exhibit significant negative thermal expansion in three directions and over a temperature range of 170 degrees. Such NTE is induced by the structural interaction of material components with distinct thermal expansion coefficients. The NTE can be tuned over a large range by varying the thermal expansion coefficient difference between constituent beams and geometrical arrangements. Our experimental results match qualitatively with a simple scaling law and quantitatively with computational models. |
Persistent Identifier | http://hdl.handle.net/10722/318640 |
ISSN | 2023 Impact Factor: 8.1 2023 SCImago Journal Rankings: 3.040 |
ISI Accession Number ID |
DC Field | Value | Language |
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dc.contributor.author | Wang, Qiming | - |
dc.contributor.author | Jackson, Julie A. | - |
dc.contributor.author | Ge, Qi | - |
dc.contributor.author | Hopkins, Jonathan B. | - |
dc.contributor.author | Spadaccini, Christopher M. | - |
dc.contributor.author | Fang, Nicholas X. | - |
dc.date.accessioned | 2022-10-11T12:24:13Z | - |
dc.date.available | 2022-10-11T12:24:13Z | - |
dc.date.issued | 2016 | - |
dc.identifier.citation | Physical Review Letters, 2016, v. 117, n. 17, article no. 175901 | - |
dc.identifier.issn | 0031-9007 | - |
dc.identifier.uri | http://hdl.handle.net/10722/318640 | - |
dc.description.abstract | Ice floating on water is a great manifestation of negative thermal expansion (NTE) in nature. The limited examples of natural materials possessing NTE have stimulated research on engineered structures. Previous studies on NTE structures were mostly focused on theoretical design with limited experimental demonstration in two-dimensional planar geometries. In this work, aided with multimaterial projection microstereolithography, we experimentally fabricate lightweight multimaterial lattices that exhibit significant negative thermal expansion in three directions and over a temperature range of 170 degrees. Such NTE is induced by the structural interaction of material components with distinct thermal expansion coefficients. The NTE can be tuned over a large range by varying the thermal expansion coefficient difference between constituent beams and geometrical arrangements. Our experimental results match qualitatively with a simple scaling law and quantitatively with computational models. | - |
dc.language | eng | - |
dc.relation.ispartof | Physical Review Letters | - |
dc.title | Lightweight Mechanical Metamaterials with Tunable Negative Thermal Expansion | - |
dc.type | Article | - |
dc.description.nature | link_to_subscribed_fulltext | - |
dc.identifier.doi | 10.1103/PhysRevLett.117.175901 | - |
dc.identifier.pmid | 27824463 | - |
dc.identifier.scopus | eid_2-s2.0-84994029478 | - |
dc.identifier.volume | 117 | - |
dc.identifier.issue | 17 | - |
dc.identifier.spage | article no. 175901 | - |
dc.identifier.epage | article no. 175901 | - |
dc.identifier.eissn | 1079-7114 | - |
dc.identifier.isi | WOS:000386393300007 | - |