Open AccessElectromagnetic wave absorption and compressive behavior of a three-dimensional metamaterial absorber based on 3D printed honeycomb
Author(s) -
Wei Jiang,
Leilei Yan,
Hua Ma,
Fan Yang,
Jiafu Wang,
Ming Feng,
Shaobo Qu
Publication year - 2018
Publication title -
scientific reports
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.24
H-Index - 213
ISSN - 2045-2322
DOI - 10.1038/s41598-018-23286-6
Subject(s) - metamaterial , materials science , molar absorptivity , metamaterial absorber , compressive strength , composite material , absorption (acoustics) , electromagnetic radiation , attenuation coefficient , 3d printed , optics , optoelectronics , physics , biomedical engineering , medicine , tunable metamaterials
Lightweight structures with multi-functions such as electromagnetic wave absorption and excellent mechanical properties are required in spacecraft. A three-dimensional metamaterial absorber consisting of honeycomb and resistive films was proposed and fabricated through 3D printing and silk-screen printing technology. According to simulation and experiment results, the present three-dimensional metamaterial absorber can realize an absorptivity of more than 90% in a wide band of 3.53–24.00 GHz, and improve absorbing efficiency for transverse magnetic (TM) waves of oblique incidence angle from 0° to 70°. The compression test results reveal that compressive strength of the 3D printed honeycomb can reach 10.7 MPa with density of only 254.91 kg/m 3 , and the energy absorption per volume W v and per unit mass W m are 4.37 × 10 3 KJ/m 3 and 17.14 KJ/Kg, respectively. The peak compressive strength and energy absorption per mass are at least 2.2 and 3 times comparing to metallic lattice cores with the same density. Outstanding electromagnetic wave absorption and mechanical performance make the present three-dimensional metamaterial absorber more competitive in engineering applications.