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Origami Metamaterials for Tunable Thermal Expansion
Author(s) -
Boatti Elisa,
Vasios Nikolaos,
Bertoldi Katia
Publication year - 2017
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201700360
Subject(s) - thermal expansion , materials science , microelectronics , metamaterial , negative thermal expansion , aerospace , thermal , range (aeronautics) , nanotechnology , engineering physics , optoelectronics , composite material , aerospace engineering , thermodynamics , physics , engineering
Materials with engineered thermal expansion, capable of achieving targeted area/volume changes in response to variations in temperature, are important for a number of aerospace, optical, energy, and microelectronic applications. While most of the proposed structures with engineered coefficient of thermal expansion consist of bi‐material 2D or 3D lattices, here it is shown that origami metamaterials also provide a platform for the design of systems with a wide range of thermal expansion coefficients. Experiments and simulations are combined to demonstrate that by tuning the geometrical parameters of the origami structure and the arrangement of plates and creases, an extremely broad range of thermal expansion coefficients can be obtained. Differently from all previously reported systems, the proposed structure is tunable in situ and nonporous.