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用于具有纳米级分辨率的任意分布的多材料3D打印。

Multimaterial 3D Printing for Arbitrary Distribution with Nanoscale Resolution.

作者信息

Zhang Fengqiang, Li Changhai, Wang Zhenlong, Zhang Jia, Wang Yukui

机构信息

School of Mechatronics Engineering, Harbin Institute of Technology, Harbin 150001, China.

Key Laboratory of Micro-systems and Micro-structures Manufacturing, Ministry of Education, Harbin Institute of Technology, Harbin 150080, China.

出版信息

Nanomaterials (Basel). 2019 Aug 2;9(8):1108. doi: 10.3390/nano9081108.

Abstract

At the core of additive manufacturing (3D printing) is the ability to rapidly print with multiple materials for arbitrary distribution with high resolution, which can remove challenges and limits of traditional assembly and enable us to make increasingly complex objects, especially exciting meta-materials. Here we demonstrate a simple and effective strategy to achieve nano-resolution printing of multiple materials for arbitrary distribution via layer-by-layer deposition on a special deposition surface. The established physical model reveals that complex distribution on a section can be achieved by vertical deformation of simple lamination of multiple materials. The deformation is controlled by a special surface of the mold and a contour-by-contour (instead of point-by-point) printing mode is revealed in the actual process. A large-scale concentric ring array with a minimum feature size below 50 nm is printed within less than two hours, verifying the capacity of high-throughput, high-resolution and rapidity of printing. The proposed printing method opens the way towards the programming of internal compositions of object (such as functional microdevices with multiple materials).

摘要

增材制造(3D打印)的核心在于能够使用多种材料进行快速打印,实现任意分布且具有高分辨率,这可以消除传统装配的挑战和限制,并使我们能够制造日益复杂的物体,特别是令人兴奋的超材料。在此,我们展示了一种简单有效的策略,通过在特殊沉积表面上逐层沉积来实现多种材料的纳米分辨率打印,以实现任意分布。所建立的物理模型表明,通过多种材料的简单层压的垂直变形可以实现截面上的复杂分布。这种变形由模具的特殊表面控制,并且在实际过程中揭示了逐轮廓(而不是逐点)的打印模式。在不到两小时的时间内打印出了最小特征尺寸低于50纳米的大规模同心环阵列,验证了打印的高通量、高分辨率和快速性。所提出的打印方法为物体内部成分的编程(例如具有多种材料的功能性微器件)开辟了道路。

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