Fe<sub>3</sub>O<sub>4</sub>@锂铝硅微晶玻璃/还原氧化石墨烯复合材料的制备和吸波性能

杨亚楠; 夏龙; 张昕宇; 韩海波; 王珂; 温广武

doi:10.13801/j.cnki.fhclxb.20181224.002

Fe₃O₄@锂铝硅微晶玻璃/还原氧化石墨烯复合材料的制备和吸波性能

1.
哈尔滨工业大学威海材料科学与工程学院, 威海 264209;
2.
上海卫星装备研究所, 上海 200240;
3.
山东理工大学材料科学与工程学院, 淄博 255000

基金项目: 泰山学者项目（201511080）；国家自然科学基金（51672059；51172050；51202060；51302050）；哈尔滨工业大学自然科学研究基金（2014129）

详细信息

通讯作者:
夏龙,博士,副教授,硕士生导师,研究方向为吸波复合材料,E-mail:xialonghit@gmail.com

中图分类号: TB332
计量
- 文章访问数: 1078
- HTML全文浏览量: 120
- PDF下载量: 188
出版历程
- 收稿日期: 2018-10-10
- 刊出日期: 2019-11-14

Preparation and microwave absorbing properties of Fe₃O₄@lithium aluminum silicate glass ceramic/reduced graphene oxide composite

1.
School of Materials Science and Engineering, Harbin Institute of Technology(Weihai), Weihai 264209, China;
2.
Shanghai Institute of Satellite Equipment Research, Shanghai 200240, China;
3.
School of Materials Science and Engineering, Shandong University of Technology, Zibo 255000, China

摘要

摘要: 为了改善传统磁性吸波材料的阻抗匹配和提升吸波性能，将传统的磁性材料Fe₃O₄、透波材料锂铝硅微晶玻璃（LAS）和还原氧化石墨烯（RGO）进行复合，采用三步法制备Fe₃O₄@LAS/RGO磁性吸波复合材料。通过多种测试手段对其结构、形貌和组成进行表征，并分析其电磁参数和吸波性能。研究了基体氧化石墨烯（GO）添加量对Fe₃O₄@LAS/RGO复合材料的形成和吸波性能的影响，随着GO含量的增加，Fe₃O₄@LAS纳米球的分布变得稀疏，RGO堆叠程度变大。GO的质量分数为40wt%（Fe₃O₄与LAS摩尔比为1∶0.2）时，Fe₃O₄@LAS/RGO复合材料的吸波性能最佳，反射损耗在12.4 GHz处达到-65 dB，且仅需要2.1 mm的匹配厚度，在该厚度下小于-10 dB（超过90%的电磁波被材料吸收）的反射损耗达到4 GHz。LAS作为涂覆在Fe₃O₄纳米球表面的透波层，引入了多重透射-吸收机制。
- Fe₃O₄ /
- 锂铝硅微晶玻璃 /
- 还原氧化石墨烯 /
- 电磁波吸收 /
- 介电损耗
Abstract: In order to improve the impedance matching of traditional magnetic absorbing materials and improve the electromagnetic wave absorption performance, the ternary composites, composed of magnetic material Fe₃O₄, a wave-transparent material lithium aluminum silicate glass-ceramic (LAS) and reduced graphene oxide (RGO), were prepared by three-step method. The structure, morphology and composition of the Fe₃O₄@LAS/RGO composites were characterized by various test methods, and the electromagnetic parameters and microwave absorbing properties were also analyzed. The effects of the addition amount of graphite oxide (GO) on the formation and microwave absorbing properties of the Fe₃O₄@LAS/RGO composites were investigated. As the amount of GO increases, the distribution of Fe₃O₄@LAS nanospheres becomes sparse, and the degree of stacking of RGO increases. When the mass fraction of GO is 40wt% (the molar ratio of Fe₃O₄/LAS is 1:0.2), the Fe₃O₄@LAS/RGO composite has the best microwave absorbing performance. The reflection loss reaches -65 dB at 12.4 GHz with a thickness of 2.1 mm and the absorption bandwidth with the reflection loss values less than -10 dB (more than 90% of electromagnetic waves are absorbed by materials) is up to 4 GHz at the corresponding thickness. The LAS, having wave-transparent properties, can introduce a multiple transmission-absorption mechanism into the Fe₃O₄@LAS/RGO composites.
- Fe₃O₄ /
- lithium aluminum silicate glass ceramic /
- reduced graphene oxide /
- electromagnetic wave absorption /
- dielectric loss

HTML全文

参考文献(0)

施引文献(8)

期刊类型引用(2)

1.	张永文，杨郁，杨倩倩，李艳安，禹兴海. 生物炭/聚乙二醇复合相变材料的制备及其性能研究. 化学工程师. 2024(06): 6-11 . 百度学术
2.	江慧珍，罗凯，王艳，费华，吴登科，叶卓铖，曹雄金. 废弃生物质复合相变材料的构建与应用. 化工进展. 2024(07): 3934-3945 . 百度学术