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3D Printing of Micro‐Architected Al/CuO‐Based Nanothermite for Enhanced Combustion Performance
Advanced Engineering Materials ( IF 3.6 ) Pub Date : 2019-10-15 , DOI: 10.1002/adem.201900825
Yaofeng Mao 1 , Lin Zhong 1 , Xu Zhou 1 , Dawei Zheng 1 , Xingquan Zhang 1 , Tao Duan 1 , Fude Nie 2 , Bing Gao 3 , Dunju Wang 1
Affiliation  

The booming development of 3D printing offers unprecedented hope for the construction of functional materials. However, it is still challenging to fabricate nano energetic materials due to the high sensitivity of energetic materials and the difficulty of high loading of materials. Recently, ink‐based direct ink writing (DIW) 3D printing process for the preparation of reactive materials has attracted worldwide attention because of the simplicity in design of micro architecture and the possibility of low‐cost manufacturing. Herein, a novel strategy for printing Al/CuO nanothermite is successfully achieved by DIW 3D printing of nanothermite inks with good rheology shear‐thinning properties using F2311 as a binder. The loading of nanothermite in this ink formula is up to 90 wt.%, and the burning rate can be as high as 352 mm s−1. This approach provides new routes for achieving the applications in micro energetic device by printing high resolution and precise patterns of nanothermite with enhanced combustion performance.

中文翻译:

3D打印基于微结构的Al / CuO基纳米铝矿以增强燃烧性能

3D打印的蓬勃发展为功能材料的构造提供了前所未有的希望。然而,由于高能材料的高灵敏度和高负荷材料的困难,制造纳米高能材料仍然是挑战。最近,由于微体系结构设计的简单性和低成本制造的可能性,用于反应材料制备的基于墨水的直接墨水书写(DIW)3D打印工艺引起了全世界的关注。本文中,通过F 2311通过DIW 3D印刷具有良好流变剪切变稀特性的纳米铝墨油墨,成功实现了一种新型的Al / CuO纳米铝墨粉印刷策略。作为粘合剂。在该油墨配方中,纳米铝铁矿的负载量高达90 wt。%,燃烧速度可高达352 mm s -1。该方法通过印刷具有增强燃烧性能的高分辨率和精确图案的纳米铝热剂,为实现在微能设备中的应用提供了新的途径。
更新日期:2019-10-15
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