Fabrication and Electromagnetic Absorbing Properties of Hexagonal Ferrites
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Tarih
2021
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Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
Nanocomposite materials were obtained by synthesizing $Ba_2Bi_2Co_2Fe_{12O}_{22}$ Nano Particles with polyaniline and polyacrylonitrile polymers. Composites in this nanostructure; structural, magnetic and electromagnetic absorption properties were examined. It was observed from the x-ray analysis that the nano-structured particles had crystalline structure and shown Y-type hexagonal structure. It can be also seen from the IR measurements that it has this structure at 878 and 650 $cm^{?1}$. The Electron Spin Resonance experiment of nanoparticles have been measured at room temperature and shown quite wide spectra and splitting factor. Vibration Sample Magnetometer measurements were made at 10-50 and room temperature. It can be said that nanoparticles useable so successful the magnetic recording media, applications of microwave technologies. Electromagnetic absorption experiments were measured approximately 5-20 GHz in the frequency band by used the free space method. These electromagnetic absorbers are using for 1,5 mm. thickness of the samples obtained 6 GHz. wide - 50 db. loss of reflection was measured.
Açıklama
Anahtar Kelimeler
Kaynak
Düzce Üniversitesi Bilim ve Teknoloji Dergisi
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Cilt
9
Sayı
1
