Rapid Assembly of Small Materials Building Blocks (Voxels) into Large Functional 3D Metamaterials
Rapid Assembly of Small Materials Building Blocks (Voxels) into Large Functional 3D Metamaterials
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DOI：
10.1002/adfm.201907795
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发表时间：
2020-01-22
影响因子：
19
通讯作者：
Wegener, Martin
中科院分区：
文献类型：
--
作者：
Hahn, Vincent;Kiefer, Pascal;Wegener, Martin
在这里，各种3D增材制造方法在两个重要的优点方面进行了回顾：最大体素打印率和最小体素尺寸。体素大小从几个100 μ m到100纳米尺度都涵盖了。在这种情况下，多焦点双光子打印的原始结果在10(7)体素左右的体素打印速率s(-1)，这大大超过了以前的最佳值。这些进步被应用于由超过十万个三维单元组成的微结构3D（手性）机械超材料的制造中。对于类似复杂性的单位细胞，以前的最佳值要小两个数量级。
Herein, various 3D additive manufacturing approaches are reviewed in terms of two important figures of merit: maximum voxel printing rate and minimum voxel size. Voxel sizes from several 100 mu m down to the 100 nm scale are covered. Original results on multifocus two-photon printing at around voxel printing rates of 10(7) voxels s(-1) are presented in this context, which significantly surpass previous best values. These advances are illustrated by and applied to the making of microstructured 3D (chiral) mechanical metamaterials that are composed of more than one-hundred-thousand unit cells in three dimensions. Previous best values for unit cells of similar complexity are smaller by two orders of magnitude.