Magnetic and electromagnetic properties of Fe/Fe2–3N composites prepared by high-energy ball milling
Autor: | Chunzhong Liu, Jing Gao, Anzhe Du, Chunling Liu, Mengying Gong, Weiping Tong |
---|---|
Jazyk: | angličtina |
Rok vydání: | 2020 |
Předmět: |
Diffraction
lcsh:TN1-997 Materials science Scanning electron microscope Iron nitrides 02 engineering and technology 01 natural sciences Electromagnetic radiation Magnetization Biomaterials 0103 physical sciences Composite material Ball mill lcsh:Mining engineering. Metallurgy 010302 applied physics Reflection loss Metals and Alloys High-energy ball milling 021001 nanoscience & nanotechnology Microstructure Surfaces Coatings and Films Transmission electron microscopy Electromagnetic absorption Ceramics and Composites Grain boundary 0210 nano-technology |
Zdroj: | Journal of Materials Research and Technology, Vol 9, Iss 4, Pp 8646-8651 (2020) |
ISSN: | 2238-7854 |
Popis: | In this study, high-energy ball milling processes were adopted to prepare Fe/Fe2–3N composites. The phase composition and microstructure of the composites were characterized by X-ray diffraction, scanning electron microscopy and high-resolution transmission electron microscopy. The composites were nanostructured by high-energy ball milling containing lots of interfaces, grain boundaries and defects in its particle. The magnetic property and electromagnetic parameters were identified by vibration sample magnetometer and vector network analyzer. The saturation magnetization value is 174.65 emu/g. The electromagnetic absorption performance was simulated by transmission line theory. The composites have effective electromagnetic wave absorption over the whole Ku band (12.4–18 GHz). The optimal reflection loss value reached −32.4 dB at 12.4 GHz. The mechanisms of the composites absorbing electromagnetic wave had been discussed. |
Databáze: | OpenAIRE |
Externí odkaz: |