Wu Hongzhi, Wang Qi, Wu Zhenhua, Wang Mingzhe, Yang Lei, Liu Zhufeng, Wu Siqi, Su Bin, Yan Chunze, Shi Yusheng
State Key Laboratory of Materials Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan, 430074, P. R. China.
State Key Laboratory of Advanced Electromagnetic Engineering and Technology, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan, 430074, P. R. China.
Small Methods. 2022 Dec;6(12):e2201127. doi: 10.1002/smtd.202201127. Epub 2022 Oct 28.
Multi-material additive manufacturing has become a promising trend in fabricating advanced functional architectures due to its controllable design of diverse material species and novel structures. It remains challenging to endow the multi-material components with a mechanical-to-electrical conversion capability. This study reports on multi-material selectively laser sintered magnetoelectric architectures that can convert mechanical energy to electricity in a structure-dependent manner. The principal aim is to establish a relationship between the electrical output and the printed structures by fabricating a series of porous architectures with diverse structural parameters. The findings show that the output voltage increases with the decrease of the elastic modulus and the increase of the magnetic height, which has been analyzed by numerical simulation. Owing to the mechanical-to-electrical conversion capability, a pair of multi-material printed sneakers with the functionalities of power generation and gait analysis has been prepared. The voltage output reaches as high as ≈2 V, which can lighten a light-emitting diode lamp when a user is running. The described solution in this work has offered an exploration framework for the design, fabrication, and application prospects of multi-material additively manufactured architectures.
多材料增材制造因其对多种材料种类和新颖结构的可控设计，已成为制造先进功能结构的一个有前景的趋势。赋予多材料部件机电转换能力仍然具有挑战性。本研究报道了多材料选择性激光烧结磁电结构，其能够以结构依赖的方式将机械能转换为电能。主要目的是通过制造一系列具有不同结构参数的多孔结构，建立电输出与打印结构之间的关系。研究结果表明，输出电压随着弹性模量的降低和磁高度的增加而增加，这已通过数值模拟进行了分析。由于具备机电转换能力，已制备出一双具有发电和步态分析功能的多材料打印运动鞋。电压输出高达约2 V，当用户跑步时可点亮发光二极管灯。本工作中所描述的解决方案为多材料增材制造结构的设计、制造及应用前景提供了一个探索框架。
