期刊
ACS APPLIED MATERIALS & INTERFACES
卷 9, 期 49, 页码 43179-43187出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsami.7b15367
关键词
3D printing; meta-structure; ultra broad band; electromagnetic absorption; repairable
资金
- NSF of China [51302011]
- Beijing Municipal Science and Technology Commission [Z161100001416007]
- State Key Laboratory of Explosion Science and Technology [ZDKT17-02]
- Beijing Natural Science Foundation [16L00001]
Ultra-broad-band electromagnetic absorption materials and structures are increasingly attractive for their critical role in competing with the advanced broad-band electromagnetic detection systems. Mechanically soft and weak wax-based materials composites are known to be insufficient to serve in practical electromagnetic absorption applications. To break through such barriers, here we developed an innovative strategy to enable the wax-based composites to be robust and repairable meta-structures by employing a three-dimensional (3D) printed polymeric patterned shell. Because of the integrated merits from both the dielectric loss wax-based composites and mechanically robust 3D printed shells, the as fabricated meta-structures enable bear mechanical collision and compression, coupled with ultra-broad-band absorption (7-40 and 75-110 GHz, reflection loss smaller than -10 dB) approaching state-of-the-art electromagnetic absorption materials. With the assistance of experiment and simulation methods, the design advantages and mechanism of employing such 3D printed shells for substantially promoting the electromagnetic absorption performance have been demonstrated. Therefore, such Universal strategy that could be widely extended to other categories of wax-based composites highlights a smart stage on which high-performance practical multifunction meta-structures with ultra-broad-band electromagnetic absorption could be envisaged.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据