Sub-Micrometer Scale Periodic Porous Cellular Structures: Microframes Prepared by Holographic Interference Lithography

Authors

  • M. Maldovan,

    1. Department of Materials Science and Engineering, Institute for Soldier Nanotechnologies, Massachusetts Institute of Technology, 77 Massachusetts Av., Cambridge, MA, 02139 (USA)
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  • C. K. Ullal,

    1. Department of Materials Science and Engineering, Institute for Soldier Nanotechnologies, Massachusetts Institute of Technology, 77 Massachusetts Av., Cambridge, MA, 02139 (USA)
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  • J.-H. Jang,

    1. Department of Materials Science and Engineering, Institute for Soldier Nanotechnologies, Massachusetts Institute of Technology, 77 Massachusetts Av., Cambridge, MA, 02139 (USA)
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  • E. L. Thomas

    1. Department of Materials Science and Engineering, Institute for Soldier Nanotechnologies, Massachusetts Institute of Technology, 77 Massachusetts Av., Cambridge, MA, 02139 (USA)
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  • This research was funded by the Institute for Soldier Nanotechnologies of the U.S. Army Research Office under contract DAAD-19-02-0002. This work has benefited from very useful discussions with Professor L. Gibson.

Abstract

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The ubiquity of multifunctional cellular solids in both natural and engineered materials is a clear indication of the importance of such materials. The mechanical behavior of these structures is the most common critical functionality across different applications. In this Communication, we establish the effective elastic properties of periodic bicontinuous solid/air structures that can be fabricated at small length scales by interference lithography and compare their properties with standard models.

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