Microwave Absorption Properties of Flaky Carbonyl Iron @ Fe3O4 Produced by Plasma-Assisted Ball Milling

时间:2024-10-11作者:浏览量:73


Microwave Absorption Properties of Flaky Carbonyl Iron @ Fe3O4 Produced by Plasma-Assisted Ball Milling

By

Liu, X (Liu, Xian) [1] , [2] ; Liu, N (Liu, Na) [2] , [3] ; Xu, WT (Xu, Wanting) [1] , [2] ; Zeng, MQ (Zeng, Meiqin) [2] , [3] ; Lu, ZC (Lu, Zhongchen) [1] , [2]

Source

JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE

DOI10.1007/s11665-024-09435-1

Early Access

APR 2024

Indexed

2024-04-28

Document Type

Article; Early Access

Abstract

In this work, large-diameter flaky carbonyl iron (FCI) and FCI@Fe3O4 composite materials were prepared by employing a simple plasma-assisted ball milling and heat treatment process. Large FCI was obtained, with 30-70 mu m diameters and a thickness of 300 nm. The results show that, compared with the original polycrystalline carbonyl iron fiber, FCI exhibited higher wave-absorbing performance. When the matching thickness was 2 mm, FCI showed strong absorption of electromagnetic waves, and the minimum reflection loss reached - 33.5 dB at 11 GHz. When the matching thickness was 1.6 mm, the effective absorbing bandwidth reached 5.3 GHz at a reflection loss of < - 10 dB. The absorption properties were enhanced further by producing the FCI@Fe3O4 composites, for which the maximum reflection loss reached - 52 dB at 3.8 GHz, with a matching thickness of 4.6 mm. This study demonstrated an effective way to improve the microwave absorbing performance of polycrystalline carbonyl iron at low frequencies while supporting industrial mass production.

Keywords

Author Keywordselectromagnetic wave absorptionFCI@Fe3O4 compositeFlaky polycrystalline carbonyl ironplasma-assisted ball milling

Keywords PlusREDUCED GRAPHENE OXIDEELECTROMAGNETIC-WAVE ABSORPTIONCOMPOSITESPARTICLESPERFORMANCEFABRICATIONPOWDERSSPHERESSHAPE

Author Information

Corresponding Address

Lu, Zhongchen

(corresponding author)

South China Univ Technol, Sch Mech & Automot Engn, Guangzhou 510640, Peoples R China

Corresponding Address

Lu, Zhongchen

(corresponding author)

South China Univ Technol, Key Lab Adv Energy Storage Mat Guangdong Prov, Guangzhou 510640, Peoples R China

Affiliation

South China University of Technology

South China University of Technology School of Materials Science and Engineering

South China University of Technology Guangdong Key Laboratory of Advanced Materials for Energy Storage Research Center

E-mail Addresses 

mezclu@scut.edu.cn

Addresses 

1 South China Univ Technol, Sch Mech & Automot Engn, Guangzhou 510640, Peoples R China

2 South China Univ Technol, Key Lab Adv Energy Storage Mat Guangdong Prov, Guangzhou 510640, Peoples R China

3 South China Univ Technol, Sch Mat Sci & Engn, Guangzhou 510640, Peoples R China

E-mail Addresses 

mezclu@scut.edu.cn

Categories/ Classification

Research AreasMaterials Science

Citation Topics

4 Electrical Engineering, Electronics & Computer Science

4.58 Wireless Technology

4.58.1125 Microwave Absorption

Web of Science Categories

Materials Science, Multidisciplinary