Shielding Effectiveness of Zeolite: Chopped Strands Composites for Radar and Wider Frequency Applications

Abstract

In this study, zeolite: chopped strands composites were produced by using traditional mixed oxide technique. The single phase natural zeolite compound was generated after sintering at 1050 °C for 4 h. For the structural investigation, various quantities powders of zeolite: chopped strands composites were generated. X-ray diffraction (XRD) was carried out for the structural analysis, which indicated that second phase did not form in zeolite. Additionally, the zeolite: strands composites were manufactured by hot pressing using the compositions of zeolite, chopped strands in various proportions and epoxy. The zeolite:chopped strands compound formed in various weights, and epoxy resin were used to fabricate microwave shielding effectiveness composites. Utilizing network analyser (NA), the microwave shielding effect of zeolite: chopped strands composites at a thickness of 1.5 mm were measured in the range of 6.5-17.5 GHz and a minimum of -40.52 dB shielding efficacy value was achieved at 17.17 GHz. Feautures of zeolite: chopped strands composites were characterized for shielding effectiveness. The content of zeolite and chopped strands in the samples may be modulated for the larger and needed frequency bands to change the microwave shielding effect performance.

Keywords

• Electromagnetic shielding effectiveness
• Matrix composites
• Mixed oxide
• Zeolite

Radar ve Daha Geniş Frekans Uygulamaları için Zeolit: Kırpılmış Elyaf Kompozitlerin Ekranlama Etkinliği

Öz

Bu çalışmada, geleneksel karışık oksit tekniği kullanılarak zeolite: kırpılmış elyaf kompozitler üretilmiştir. Tek fazlı doğal zeolit bileşiği 1050 °C'de 4 saat sinterlendikten sonra üretildi. Yapısal inceleme için, çeşitli miktarlarda zeolit: kırpılmış elyaf kompozit tozları üretildi. Yapısal analiz için X-ışını kırınımı (XRD) yapıldı, bu da zeolitte ikinci fazın oluşmadığını gösterdi. Ek olarak, zeolit: kırpılmış elyaf kompozitler, çeşitli oranlarda zeolit, kırpılmış elyaf bileşimleri ve epoksi kullanılarak sıcak presleme ile imal edildi. Çeşitli ağırlıklarda oluşturulan zeolite: kırpılmış elyaflar bileşiği ve epoksi reçinesi, mikrodalga koruyucu etkili kompozitleri imal etmek için kullanıldı. Ağ analizör (NA) cihazı kullanılarak, 1.5 mm kalınlıktaki zeolit: kırpılmış elyaf kompozitlerin mikrodalga ekranlama etkinliği 6.5-17.5 GHz frekans aralığında ölçüldü ve 17.17 GHz'de minimum -40.52 dB ekranlama etkinlik değeri elde edildi. Zeolit: kırpılmış elyaf kompozitlerinin özellikleri, ekranlama etkinliği için karakterize edildi. Numunelerdeki zeolit ve kırpılmış elyafların içeriği, mikrodalga ekranlama etkisi performansını değiştirmek için daha büyük ve gerekli frekans bantları için modüle edilebilir.

Anahtar Kelimeler

• Elekromanyetik ekranlama etkinliği
• Matriks kompozitler
• karışık oksit

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