Effects of particle size on the magnetic and microwave absorption properties of carbon-coated nickel nanocapsules

La 0.67 Sr 0.33 MnO 3 particles with different particle size have been prepared by sol-gel method. The structure, magnetization and microwave absorption properties have been investigated. The results show that the particle size can be controlled by sinter temperature. The peaks of the maximum reflection loss (RL) move to higher frequency regions with increasing particle size. The value of the maximum RL is -32 dB at 10.2GHz with a particle size of 58.5nm. The bandwidth with a RL exceeding -8dB reached 1.6GHz in the whole measured frequency range, suggesting that La 0.67 Sr 0.33 MnO 3 particles are promising for application as a wideband and strong absorption building microwave absorber.

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Electromagnetic and microwave absorption properties of FeSiAl and flaky graphite filled Al2O3 composites with different FeSiAl particle size

Ceramics International ◽

10.1016/j.ceramint.2019.10.155 ◽

2020 ◽

Vol 46 (4) ◽

pp. 4329-4334 ◽

Cited By ~ 4

Author(s):

Liang Zhou ◽

Jiaojiao Yu ◽

Zhenjun Wang ◽

Hongbo Wang ◽

Julong Huang ◽

...

Keyword(s):

Particle Size ◽

Microwave Absorption ◽

Absorption Properties ◽

Microwave Absorption Properties

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Influence of particle size on the microwave absorption properties of FeSiAl/ZnO-filled resin composite coatings

Journal of Materials Science Materials in Electronics ◽

10.1007/s10854-019-02781-0 ◽

2020 ◽

Vol 31 (3) ◽

pp. 2446-2453 ◽

Cited By ~ 1

Author(s):

Liang Zhou ◽

Jiaojiao Yu ◽

Meng Chen ◽

Hongbo Wang ◽

Zhenjun Wang ◽

...

Keyword(s):

Particle Size ◽

Microwave Absorption ◽

Resin Composite ◽

Composite Coatings ◽

Absorption Properties ◽

Microwave Absorption Properties

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Influence of particle size on electromagnetic behavior and microwave absorption properties of Z-type Ba-ferrite/polymer composites

Journal of Magnetism and Magnetic Materials ◽

10.1016/j.jmmm.2007.01.017 ◽

2007 ◽

Vol 313 (2) ◽

pp. 322-328 ◽

Cited By ~ 65

Author(s):

B.W. Li ◽

Y. Shen ◽

Z.X. Yue ◽

C.W. Nan

Keyword(s):

Particle Size ◽

Polymer Composites ◽

Microwave Absorption ◽

Absorption Properties ◽

Microwave Absorption Properties ◽

Electromagnetic Behavior

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Preparation and microwave absorption properties of uniform TiO2@C core–shell nanocrystals

RSC Advances ◽

10.1039/c5ra14344f ◽

2015 ◽

Vol 5 (94) ◽

pp. 77443-77448 ◽

Cited By ~ 26

Author(s):

Gengping Wan ◽

Lei Yu ◽

Xiange Peng ◽

Guizhen Wang ◽

Xianqin Huang ◽

...

Keyword(s):

Microwave Absorption ◽

Microwave Absorber ◽

Core Shell ◽

Absorption Properties ◽

Microwave Absorption Properties ◽

Carbon Coated ◽

New Type

Uniform carbon-coated TiO2 core–shell nanocrystals are synthesized and can be used as a new type of broadband microwave absorber.

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Carbon Coated Core-Shell FeSiCr/Fe3C Embedded in Carbon Nanosheets Network Nanocomposites for Improving Microwave Absorption Performance

NANO ◽

10.1142/s1793292020500940 ◽

2020 ◽

Vol 15 (07) ◽

pp. 2050094

Author(s):

Houdong Xiong ◽

Lei Wang ◽

Sajjad Ur Rehman ◽

Yang Chen ◽

Qiulan Tan ◽

...

Keyword(s):

Microwave Absorption ◽

Impedance Matching ◽

Core Shell ◽

Absorption Properties ◽

Microwave Absorption Properties ◽

Carbon Nanosheets ◽

Practical Applications ◽

Conduction Loss ◽

Microwave Absorbing Materials ◽

Carbon Coated

Development of microwave absorbing materials with tunable thickness and bandwidth is particularly important for practical applications, but its realization remains a great challenge. Here, we report carbon coated core-shell FeSiCr/Fe3C embedded in two-dimensional carbon nanosheets network (FeSiCr/Fe3C@C/C) nanocomposites fabricated by plasma arc-discharging method. FeSiCr/Fe3C@C/C has the best microwave absorption properties in which the minimum calculated reflection loss (RL) can reach [Formula: see text][Formula: see text]dB at 11.5[Formula: see text]GHz with a coating thickness of 2.4[Formula: see text]mm and the efficient absorption bandwidth (RL[Formula: see text][Formula: see text]dB) almost covers 4.5–18[Formula: see text]GHz range by adjusting the coating thicknesses from 1.3 to 5.0[Formula: see text]mm. The improved microwave absorption properties could be ascribed to the optimized impedance matching and enhanced polarization loss, conduction loss and internal reflections of the propagated microwave.

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