碳纳米管/金属Ni/稀土氧化物复合材料用于增强夹层结构的吸波性能

复合材料科学与工程 ›› 2015, Vol. 0 ›› Issue (1): 18-22.

碳纳米管/金属Ni/稀土氧化物复合材料用于增强夹层结构的吸波性能

何亚飞¹, 郝立峰¹, 杨帆¹, 矫维成¹

1.哈尔滨工业大学复合材料与结构研究所,哈尔滨150001;
2.哈尔滨工业大学材料学院,哈尔滨150001

收稿日期:2014-05-20 出版日期:2015-01-28 发布日期:2021-09-14
通讯作者: 王荣国(1963-),男,博士,教授,wangrongguo@hit.edu.cn。
作者简介:何亚飞(1990-),女,硕士研究生,主要从事树脂基复合材料的研究。本文作者还有刘文博²和王荣国^1*
基金资助:
973课题(2011CB605605);教育部博士点基金(20122302120033)

CNTs/Ni/REO COMPOSITES USED TO ENHANCE THE WAVE-ABSORBING PROPERTY OF SANDWICH STRUCTURE

HE Ya-fei¹, HAO Li-feng¹, YANG Fan¹, JIAO Wei-cheng¹

1. Center for Composites Materials, Harbin Institute of Technology, Harbin 150001, China;
2. School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China

Received:2014-05-20 Online:2015-01-28 Published:2021-09-14

摘要/Abstract

摘要： 将碳纳米管、纳米氧化镧、微米金属Ni粉、微米氧化镱分散至环氧树脂,将该环氧树脂混合物填充复合材料夹层结构的夹层,来探究该复合材料结构的吸波性能。利用网络矢量分析仪对该结构进行检测。结果表明,该复合材料结构在吸波分贝和吸波带宽方面都有提升,具有良好的吸波性能。在2.99~18.00GHz频段内,反射分贝出现三次波峰:第一个波峰的吸波带宽(<-5dB)为2.55GHz,最大值出现在4.86GHz,为-23.78dB。第二个波峰的吸波带宽(<-5dB)为3.75GHz,最大值出现在10.35GHz,为-21.07dB。第三个波峰吸波带宽(<-5dB)为5.66GHz,最大值出现在14.04GHz,为-13.65dB。整体的吸波带宽(<-5dB)达到11.96GHz,占全部测试频率的80%。另外,该复合材料结构对电磁波的损耗比例也有提升。

关键词: 复合材料, 夹层结构, 吸波性能

Abstract: Study the wave-absorbing property of sandwich structures by dispersing the carbon nanotubes, lanthanum oxide in nanometer scale, Ni powder in micrometer scale and ytterbium oxide in micrometer scale into epoxy and filling the interlayer of glass fiber reinforced composites sandwich structures with the above epoxy mixture. The wave-absorbing property was characterized by using vector network analyzer. The results show that these composites structures have a good performance in wave-absorbing. The reflection ratio(dB) and the wave-absorbing bandwidth are both improved. From 2.99 to 18.00GHz, there are three wave-absorbing peaks. The bandwidth (<-5dB) of the first peak is 2.55GHz, the maximum dB is -23.78dB, and it is located at 4.86GHz. The bandwidth (<-5dB) of the second peak is 3.75GHz, the maximum dB is -21.07dB, and it is located at 10.35GHz. The bandwidth (<-5dB) of the third peak is 5.66GHz, the maximum dB is -13.65dB, and it is located at 14.04GHz. The total wave-absorbing bandwidth (<-5 dB) reach 11.96 GHz, and it accounts for 80% of all the tested frequency. Besides, the wave loss ratio of the composites structures is improved as well.

Key words: composites, sandwich structure, wave-absorbing property

中图分类号:

TB332

何亚飞, 郝立峰, 杨帆, 矫维成. 碳纳米管/金属Ni/稀土氧化物复合材料用于增强夹层结构的吸波性能[J]. 复合材料科学与工程, 2015, 0(1): 18-22.

HE Ya-fei, HAO Li-feng, YANG Fan, JIAO Wei-cheng. CNTs/Ni/REO COMPOSITES USED TO ENHANCE THE WAVE-ABSORBING PROPERTY OF SANDWICH STRUCTURE[J]. COMPOSITES SCIENCE AND ENGINEERING, 2015, 0(1): 18-22.

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