Bor Bazlı Toz Katkılamanın Aramid/Cam Elyaf Hibrit Kompozitlerin Mikrodalga Soğurma Özelliklerine Etkisi

Öz

Bu çalışmanın amacı, farklı katkı konsantrasyonlarının EKabor-II toz takviyeli aramid-cam elyaf kumaş/epoksi kompozitlerin mikrodalga soğurma performansı üzerindeki etkisini incelemektir. Bu araştırma, havacılık radar teknolojilerinde uygulanabilir yüksek verimli mikrodalga soğurucuların ve yeni malzemelerin geliştirilmesine katkı sağlayabilir. Bu çalışmada, Ekabor-II katkılı aramid/cam elyaf kumaş takviyeli epoksi kompozitlerin mikrodalga soğurma özellikleri incelenmiştir. Ekabor-II, ağırlıkça %0.5 ve %1 olmak üzere iki farklı konsantrasyonda eklenmiştir. Tüm hibrit kompozitler, elle yatırma ve vakum torbalama teknikleri kullanılarak üretilmiştir. Örneklerin mikrodalga özellikleri, 3-18 GHz frekans aralığında çalışan Agilent marka 2-Port PNA-L Ağ Analizörü kullanılarak iletim/yansıma ölçümleri ile incelenmiştir. Bu frekans aralığı, çeşitli yeni kablosuz iletişim bantlarını içermesi nedeniyle özellikle seçilmiştir. Kompozit plakalar iki korna anteni arasına yerleştirilmiştir. Üretilen kompozit malzemelerin elektromanyetik soğurma özellikleri, biri metal plaka ile diğeri ise metalsiz olmak üzere iki farklı deney yöntemi ile değerlendirilmiştir. Deneysel sonuçlar, Ekabor-II takviyeli lamine kompozit malzemenin metal levhalarla kullanıldığında 3-18 GHz frekans aralığında çeşitli izolasyon uygulamaları için uygun olan olumlu soğurma özellikleri sergilediğini göstermektedir. Sonuç olarak, üretilen tüm malzemelerin geniş bir frekans aralığında radom malzemesi olarak kullanılabileceği belirlenmiştir.

Anahtar Kelimeler

• Aramid Kumaş
• Cam Fiber Kumaş
• Ekabor-II
• Mikrodalga Absorpsiyonu

Impact of Boron-Based Powder Doping on The Microwave Absorption Characteristics of Aramid/Fiber-Glass Hybrid Composites

Öz

The goal of this paper is to look into the effect of different doping concentrations on the microwave absorption performance of EKabor-II powder reinforced aramid-fiber glass fabric/epoxy composites. This research may facilitate the development of high-efficiency microwave absorbers and novel materials applicable in aviation radar technologies. This work examines the microwave absorption characteristics of Ekabor-II doped aramid/fiber-glass fabric-reinforced epoxy composites. Ekabor-II was included at two distinct concentrations: 0.5% and 1% by weight. All hybrid composites were produced using the hand lay-up and vacuum bagging techniques. Microwave characteristics of samples were studied using transmission/reflection measurements on an Agilent brand 2-Port PNA-L Network Analyzer with a frequency range of 3-18 GHz. This range was chosen primarily because it contains a variety of new wireless communication bands. The composite plates are placed between two horn antennas. The electromagnetic absorption characteristics of the fabricated composite materials were assessed using two distinct experiments, one with a metal plate and the other without. Experimental results indicate that the Ekabor-II reinforced laminated composite material exhibits favorable absorption characteristics when utilized with metallic sheets, making it suitable for isolation applications at various frequencies within the 3–18 GHz range. As a result, it was determined that all produced material may be utilized as radome material throughout a broad spectrum.

Anahtar Kelimeler

• Aramid Fabric
• Fiber-Glass Fabric
• Ekabor-II
• Microwave Absorption

Kaynakça

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