3D‐Printed Micro/Nano‐Scaled Mechanical Metamaterials: Fundamentals, Technologies, Progress, Applications, and Challenges

Abstract

Micro/nano‐scaled mechanical metamaterials have attracted extensive attention in various fields attributed to their superior properties benefiting from their rationally designed micro/nano‐structures. As one of the most advanced technologies in the 21st century, additive manufacturing (3D printing) opens an easier and faster path for fabricating micro/nano‐scaled mechanical metamaterials with complex structures. Here, the size effect of metamaterials at micro/nano scales is introduced first. Then, the additive manufacturing technologies to fabricate mechanical metamaterials at micro/nano scales are introduced. The latest research progress on micro/nano‐scaled mechanical metamaterials is also reviewed according to the type of materials. In addition, the structural and functional applications of micro/nano‐scaled mechanical metamaterials are further summarized. Finally, the challenges, including advanced 3D printing technologies, novel material development, and innovative structural design, for micro/nano‐scaled mechanical metamaterials are discussed, and future perspectives are provided. The review aims to provide insight into the research and development of 3D‐printed micro/nano‐scaled mechanical metamaterials.

A visible-near-infrared transparent miniaturized frequency-selective metasurface with a microwave transmission window

“…In recent years, with the rapid development of metamaterials [1][2][3][4] and metasurfaces, [5][6][7][8][9] artificial electromagnetic metamaterials have been widely employed to modulate electromagnetic waves, [10][11][12][13][14][15] elastic waves, [16][17][18][19][20] and acoustic waves. [20][21][22][23][24] The construction of metasurfaces with frequencyselective characteristics is a great challenge in the field of satellite communication and antennas.…”

Accuracy controlling and mechanical behaviors of precursor-derived ceramic SiOC microlattices by projection micro stereolithography (PμSL) 3D printing

“…Advanced additive manufacturing (3D printing) technologies present tremendous advantages in the manufacturing of fine and complicated ceramic architectures, achieving near-net shapes of materials, thereby providing novel routes to prepare ceramic lattices [8,9]. As reported, fused deposition modeling (FDM), direct ink writing (DIW), and vat photopolymerization technologies, are capable of fabricating PDC lattice structures [10][11][12]. Among those technologies, the vat photopolymerization technologies are highly versatile in equipment setup and material requirements, and can produce PDC lattice structures with the highest resolution together with a high printing speed [13,14].…”

Experiment Investigation of the Compression Behaviors of Nickel-Coated Hybrid Lattice Structure with Enhanced Mechanical Properties

“…The design and manufacture of micro/nano-structural materials that possess both lightweight and excellent mechanical properties have been a long-standing issue for industrial applications [1][2][3][4]. The microlattice metamaterials have advantages such as high strength, low density, high energy absorption, and strong designability [5][6][7][8], and they have great potential for application in aerospace, transportation, and biomedical fields [9][10][11]. In the past few decades, the development of additive manufacturing technology has promoted the extensive research on microlattice structures.…”