Hematit ve götit takviyeli karbon fiber polimer kompozitlerin uzak alan elektromanyatik kalkanlama etkinliği performansı

Yıl 2024, Cilt: 30 Sayı: 6, 779 - 784, 29.11.2024

Uğur Erbaş , Cantekin Kaykılarlı , Taha Yasin Eken , Burak Küçükelyas Mehmet Barış Tabakcıoğlu

Öz

Karbon fiber (carbon fiber: CF) katkılı malzemeler, günlük hayatımızda
vazgeçilemez malzemelerdir. CF takviyeli kompozitlerinin (CFRP) üstün
mukavemeti, yüksek dielektrik özelliği, üretim kolaylığı ve korozyon
direnci, CFRP’leri diğer malzemelerden öne çıkaran özelliklerinden
yalnızca birkaçıdır. Bu çalışmada partikül boyutları 50 nm ve 45 μm
(325 mesh) olan iki farklı hematit (alfa-Fe2O3) ile götit (FeO(OH))
takviyeli, 2 katmanlı CF takviyeli epoksi kompozitler el ile yatırma
yöntemi kullanılarak üretilmiştir. Üretilen kompozitler 700 MHz-6000
MHz aralığında uzak alan elektromanyetik kalkanlama özelliklerini
tespit etmek için testlere tabi tutulmuşlardır. Maksimum kalkanlama
etkisi, ağırlıkça %5 FeO(OH) takviyeli kompozit için 39.28 dB ile
5200 MHz'de, %10 Fe2O3(325 mesh) takviyeli için 38.38 dB ile 4700
MHz’de, %15 Fe2O3(50 nm) takviyeli için 37.15 dB ile 3800 MHz’de
belirlenmiştir.

Anahtar Kelimeler

Karbon fiber, Uzak alan, Elektromanyetik kalkanlama, Karbon fiber takviyeli polimer kompozit, Hematit, Götit

Electromagnetic shielding effectiveness performance of carbon fiber reinforced polymer (CFRP) composites with hematite and goethite in far-field

Öz

Carbon fibers (CFs) are indispensable materials in our daily life. The
excellent bearing capacity, remarkable dielectric property, ease of
production, and corrosion resistance of CFRP composites distinguish
them from all other options in addition to them, CFRPs may also shield
from electromagnetic interference (EMI). In this study, two-layer CF
reinforced epoxy composites reinforced with two different hematite
(alpha- Fe2O3) and goethite (FeO(OH)) particle sizes of 50 nm and 45
μm (325 mesh) were produced using the manual lay-up method. Then,
far field electromagnetic shielding effectiveness (SE) with 700 MHz -
6000 MHz range were examined. The maximum shielding effectiveness
was determined to be at 5200 MHz with 39.28 dB for 5 wt.% FeO(OH),
at 4700 MHz with 38.38 dB for 10 wt.% Fe2O3(325 mesh), at 3800 MHz
with 37.15 dB for 15 wt.% Fe2O3(50 nm).

Anahtar Kelimeler

Carbon fibers, Far field, Electromagnetic shielding, carbon fiber reinforced polymer, Hematite, Goethite

Kaynakça

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