Preparation and Characterization of High Magnetic Loss Microwave Absorber for Splitter Load

Microwave absorbing material was prepared using epoxy resin as matrix and spherical carbonyl iron powder (s-CIP), flaky carbonyl iron powder (f-CIP) as absorbing agent. Microwave absorbing, mechanical properties and structure of the composites containing different kinds of carbonyl iron powder (CIP)...

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Bibliographic Details
Main Authors: Tian, Lan, Lichao, Dong, Nan, Li, Chunbo, Zhang, Hao, Zhang, Yuchen, Pei
Format: Conference Proceeding
Language:English
Subjects:
Attenuation
Carbonyl compounds
Carbonyl powders
Electromagnetic properties
Epoxy resins
Iron
Mechanical properties
Microwave absorbers
Microwave absorption
Polymer matrix composites
Powder
Spherical powders
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Summary:Microwave absorbing material was prepared using epoxy resin as matrix and spherical carbonyl iron powder (s-CIP), flaky carbonyl iron powder (f-CIP) as absorbing agent. Microwave absorbing, mechanical properties and structure of the composites containing different kinds of carbonyl iron powder (CIP) were investigated. The results show that the microwave absorber with flaky CIP have better electromagnetic properties than composites with spherical CIP. With concentration of spherical CIP increasing the electromagnetic properties of composites becomes better, except for the mechanical performance. The flaky CIP/epoxy resins composites with a loading of 79 wt% plate-like CIP has attenuation constant of 25.443 dB/cm in 3 GHz. The absorber prepared using flaky CIP has homogenous, dense structure and has excellent mechanical properties.
ISSN:2267-1242
2555-0403
2267-1242
DOI:10.1051/e3sconf/202018603006