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