TY  - JOUR
T1  - Hegzagonal Ferritlerin İmalatı ve Elektromanyetik Soğurma Özelliklerinin İncelenmesi
TT  - Fabrication and Electromagnetic Absorbing Properties of Hexagonal Ferrites
AU  - Bayrakdar, Harun
PY  - 2021
DA  - January
DO  - 10.29130/dubited.818564
JF  - Duzce University Journal of Science and Technology
JO  - DÜBİTED
PB  - Duzce University
WT  - DergiPark
SN  - 2148-2446
SP  - 1
EP  - 6
VL  - 9
IS  - 1
LA  - tr
AB  - Nanokompozit malzemeler, Ba2Bi2Co2Fe12O22 Nano Partiküllerin polianilin ve poliakrilonitril polimerler ile sentezlenmesi ile elde edilmiştir. Bu nanoyapıdaki kompozitler; yapısal, manyetik ve elektromanyetik soğurma özellikleri incelenmiştir. X-ışını analizinden nano yapılı partiküllerin kristal yapıya sahip olduğu ve Y tipi altıgen yapı gösterdiği görülmüştür. 878 ve 650 cm-1'de bu yapıya sahip olduğu IR ölçümlerinden de görülebilmektedir. Nanopartiküllerin Elektron Spin Rezonans deneyi oda sıcaklığında ölçülmüş ve oldukça geniş spektrum ve bölünme faktörü gösterilmiştir. Titreşim Örneği Manyetometre ölçümleri 10-50 ve oda sıcaklığında yapılmıştır. Nanopartiküllerin, manyetik kayıt medyası, mikrodalga teknolojilerinin uygulamaları kadar başarılı olduğu söylenebilir. Elektromanyetik absorpsiyon deneyleri, frekans bandında serbest alan yöntemi kullanılarak yaklaşık 5-20 GHz ölçülmüştür. 1,5 mm. kalınlığındaki elektromanyetik soğurucu numuneler için 6 GHz. genişliğinde ve 50 db. yansıma kaybı ölçülmüştür.
KW  - Manyetik
KW  - Hegzagonal
KW  - Soğurma
N2  - Nanocomposite materials were obtained by synthesizing Ba2Bi2Co2Fe12O22 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.
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UR  - https://doi.org/10.29130/dubited.818564
L1  - https://dergipark.org.tr/en/download/article-file/1371535
ER  -