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Cited by 256

The DOI matches its Crossref record; 17 of the 17 references it cites were found in a registry or an index.

Isotropic Negative Thermal Expansion Metamaterials

Open access
Wu, Lingling, Li, Bo, Zhou, Ji·2016·ACS Applied Materials & Interfaces

Abstract

Negative thermal expansion materials are important and desirable in science and engineering applications. However, natural materials with isotropic negative thermal expansion are rare and usually unsatisfied in performance. Here, we propose a novel method to achieve two- and three-dimensional negative thermal expansion metamaterials via antichiral structures. The two-dimensional metamaterial is constructed with unit cells that combine bimaterial strips and antichiral structures, while the three-dimensional metamaterial is fabricated by a multimaterial 3D printing process. Both experimental and simulation results display isotropic negative thermal expansion property of the samples. The effective coefficient of negative thermal expansion of the proposed models is demonstrated to be dependent on the difference between the thermal expansion coefficient of the component materials, as well as on the circular node radius and the ligament length in the antichiral structures. The measured value of the linear negative thermal expansion coefficient of the three-dimensional sample is among the largest achieved in experiments to date. Our findings provide an easy and practical approach to obtaining materials with tunable negative thermal expansion on any scale.

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Metadata

Authors
Wu, L., Li, B., & Zhou, J.
Venue
ACS Applied Materials & Interfaces
Published
2016-07-01
Volume
8
Issue
27
Pages
17721-17727
ISSN
  • 1944-8244 (ISSN-L)
  • 1944-8252
OpenAlex
W2253408215
Cited by
256
References
17
FWCI
10.33
Type
journal article
Language
en
Open access
green

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