PVP表面修饰羰基铁/CoFe<sub>2</sub>O<sub>4</sub>核壳纳米结构的制备及低频吸波机理

doi:10.11896/cldb.19070205

Abstract
Figure/Table
References
Related Citation (5)

Download:

Full Text ( PDF ) (7220KB)
Export: BibTeX | EndNote (RIS)

Abstract The surface of carbonyl iron powder was treated with polyvinylpyrrolidone (PVP), and CoFe₂O₄ was directly synthesized on the surface of carbonyl iron particles by Co²⁺ and Fe³⁺. Three kinds of carbonyl iron/CoFe₂O₄ core-shells structural powder with different CoFe₂O₄ content were successfully prepared. The morphology, composition and electromagnetic properties of carbonyl iron particles before and after the addition of CoFe₂O₄ were analyzed by scanning electron microscopy (SEM), X-ray diffraction (XRD), infrared spectroscopy (FTIR) and vector network analyzer (VNA). The results show that the irregular particle nano CoFe₂O₄ powder was successfully prepared. The CoFe₂O₄ powder was mostly coated on the surface of flaky carbonyl iron. With the increase of the amount of CoFe₂O₄, the thickness of the coating gradually increases and tends to be completely coated. The CoFe₂O₄ powder coating layer effectively reduced the dielectric constant of carbonyl iron, improved the impedance matching performance in low frequency, realized the combined absorbing effect of ferroelectric and ferromagnetic, and improved the low frequency absorbing performance. The absorbing properties of the material were analyzed by the interface reflection model and impedance matching principle. The relationship between the peak frequency of the reflection and the electromagnetic parameters was analyzed by the 1/4 wavelength interference cancellation theory.

Key words： carbonyl iron CoFe₂O₄ low frequency absorption mechanism magnetic material

Published: 14 July 2020

CLC number:

TB34

Fund:This work was financially supported by the National Natural Science Foundation of China (51172282), the Innovation and Development of Scientific Research Foundation of Campus(KYSZJQZL1910).

About author:: Ze Lireceived his master's degree in December 2016 from Ordnance Engineering College. He has study for a doctorate in Army Engineering University Shijiazhuang campus since March 2017, focusing on the research of magnetic absorbing materials and metamaterials.
Fang Zhao,associate professor at the Shijiazhuang Campus of the Army Engineering University. She has served as a member of the National College Student Metallurgical Skills Competition Judging Committee and Supervisory Committee. The main research field is functional ceramic absorbing materials. As a key member of the project, she has participated in more than 10 scientific researches in the military including the National Natural Science Foundation of China and the Na-tural Science Foundation of Hebei Province. She has authorized 4 national and national defense invention patents and 5 utility model patents. She has published more than 20 papers in SCI and EI journals.

	Service
	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	LI Ze
	ZHAO Fang
	WANG Jianjiang
	GAO Haitao

Cite this article:

LI Ze,ZHAO Fang,WANG Jianjiang, et al. Preparation and Low Frequency Absorbing Mechanism of PVP Surface Modified Carbonyl Iron/CoFe₂O₄ Core-Shell Nanostructure[J]. Materials Reports, 2020, 34(14): 14027-14033.

URL:

http://www.mater-rep.com/EN/10.11896/cldb.19070205 OR http://www.mater-rep.com/EN/Y2020/V34/I14/14027

1 Wu J Q. Radar Science and Technology, 2015, 13(1), 1(in Chinese).
吴剑旗. 雷达科学与技术, 2015, 13(1), 1.
2 Kaouther N, Douraid D, Ahmed L. Comptes Rendus Biologies, 2013, 336(4), 194.
3 Li X G, Lu H L, Ji G B, et al. Journal of Aeronautical Materials, 2013, 33(5), 48(in Chinese).
李晓光, 吕华良, 姬广斌, 等. 航空材料学报, 2013, 33(5), 48.
4 Xu Y G, Zhang D Y, Cai J, et al. Journal of Magnetism and Magnetic Materials, 2013, 327, 84.
5 Gao Y, Gao X, Li J, et al. Composites Science and Technology, 2018, 158, 180.
6 He Y, Pan S K, Cheng L C, et al. Journal of Electronic Materials, 2019, 2, 5.
7 Yan H, Song X, Wang Y, et al. AIP Advances, 2019, 8(6), 065332.
8 Long C, Xu B C, Han C Z, et al. Journal of Alloys and Compounds, 2017, 709, 738.
9 Hu J, Xie G Z, Gu J X, et al. Materials Reports B:Research Papers, 2018, 32(2), 522(in Chinese).
胡晶, 谢国治, 顾家新, 等. 材料导报:研究篇, 2018, 32(2), 522.
10 Jafarian M, Afghahi S S S, Atassi Y, et al. Journal of Magnetism and Magnetic Materials, 2018, 462, 155.
11 He L, Zhao Y, Xing L, et al. RSC Advances, 2018, 8(6), 2971.
12 Li T K, Wang Z B, Mei S G, et al. Journal of Wuhan University of Technology, 2008, 31(3), 11(in Chinese).
李同锴, 王振彪, 梅世刚, 等. 武汉理工大学学报, 2008, 31(3), 11.
13 Li Z, Xu B C, Wang J J, et al. Journal of Synthetic Crystals, 2016, 45(9), 2240(in Chinese).
李泽, 许宝才, 王建江, 等. 人工晶体学报, 2016, 45(9), 2240.
14 Yang X, Hu J J, Guo N, et al. Journal of Chongqing University of Technology(Natural Science), 2018, 32(7), 134(in Chinese).
杨显, 胡建军, 郭宁, 等. 重庆理工大学学报(自然科学), 2018, 32(7), 134.
15 Du W, Nian F S, Liang S L, et al. Measurement and Control Technology, 2019, 38(5), 77(in Chinese).
杜玮, 年夫顺, 梁胜利, 等. 测控技术, 2019, 38(5), 77.
16 Tong G X, Guan J G, Zhang W Y, et al. Acta Metallurgica Sinica, 2008, 44(8), 1001(in Chinese).
童国秀, 官建国, 张五一, 等. 金属学报, 2008, 44(8), 1001.
17 Guo S. Study on the growth and properties of Mg-C-O-H films. Harbin Institute of Technology, Master's Thesis, China, 2016(in Chinese).
郭帅. Mg-C-O-H薄膜的制备及性能研究. 硕士学位论文,哈尔滨工业大学, 2016.
18 Guo Y J, Zhang L, Hou J Q, et al. Chemical Jouranl of Chinese Universities, 2016, 37(6), 1202(in Chinese).
郭亚军, 张龙, 后洁琼, 等. 高等学校化学学报, 2016, 37(6), 1202.
19 Wang Y J, Huang W, Huang Y W, et al. Materials Reports B: Research Papers, 2019, 33(5), 1627(in Chinese).
王玉江, 黄威, 黄玉炜, 等. 材料导报:研究篇, 2019, 33(5), 1627.
20 Zhang L, Hou J Q, Qiu H, et al. Chemical Jouranl of Chinese Universities, 2017, 38(12), 2352(in Chinese).
张龙, 后洁琼, 秋虎, 等. 高等学校化学学报, 2017, 38(12), 2352.
21 He Z J, Wang X X, Zhang Y L, et al. Jouranl of Materials Chemistry C, 2016, 4(29), 7130.
22 Feng Y B, Tang C M, Qiu T. Journal of Materials Engineering, 2014(2), 1(in Chinese).
冯永宝,唐传明,邱泰. 材料工程, 2014(2), 1.
23 Han R. Microwave absorption properties of the easy-plane anisotropy powder/matrix composites. P.D. Thesis, Lanzhou University, China, 2013(in Chinese).
韩瑞. 易面各向异性磁粉复合材料微波吸收性能的研究. 博士学位论文,兰州大学,2013.