Elektromanyetik Ekranlama Uygulamaları İçin GdMnO3/PANI/Ba(Zn1/3Nb2/3)O3 Kompozitlerin Özellikleri

Yıl 2023, Cilt: 13 Sayı: 3, 2143 - 2154, 01.09.2023

Ethem İlhan Şahin , Mehriban Emek

https://doi.org/10.21597/jist.1268835

Cited By: 2

Öz

Bu çalışmada, oksitlerin karışımı tekniği kullanılarak GdMnO3-Ba(Zn1/3Nb2/3)O3 üretilmiştir. GdMnO3-Ba(Zn1/3Nb2/3)O3 kompozisyon bileşimleri yapısal analiz için çeşitli oranlarda oluşturulmuştur. Tek fazlı GdMnO3 ve Ba(Zn1/3Nb2/3)O3 bileşimi, 1200-1400°C arasında sinterlendikten sonra üretilmiştir. Yapısal analizi sonuçları, GdMnO3 ve Ba(Zn1/3Nb2/3)O3 ‘de ikinci fazın oluşmadığını göstermiştir. Yapısal analiz için X-ışını kırınımı (XRD) yapıldı. Ek olarak, GdMnO3/PANI/Ba(Zn1/3Nb2/3)O3 kompozitleri çeşitli miktarlarda GdMnO3-Ba(Zn1/3Nb2/3)O3 ve anilin bileşimleri kullanılarak sıcak presleme yöntemiyle üretilmiştir. (GdMnO3-Ba(Zn1/3Nb2/3)O3) ve anilin ağırlık oranları sırasıyla 1:1 idi. Çeşitli ağırlıklarda oluşturulan GdMnO3/PANI/Ba(Zn1/3Nb2/3)O3 bileşiği ve epoksi tozu kullanılarak mikrodalga kalkanlama etkili kompozitler üretilmiştir. Bir ağ analizör cihazı (NA) kullanılarak, GdMnO3/PANI/Ba(Zn1/3Nb2/3)O3 kompozitlerinin mikrodalga ekranlama etkisi 8-18 GHz aralığında incelenmiştir. 1.4 mm kalınlıkta 15.77 GHz'de minimum -56.77 dB ekranlama etkisi değeri elde edilmiştir. GdMnO3/PANI/Ba(Zn1/3Nb2/3)O3 kompozit malzeme olarak üretilmiş ve kalkanlama etkisi için özellikleri karakterize edilmiştir. Bu mikrodalga koruma performansı, daha geniş ve gerekli frekans bantları için örneklerdeki polianilin içeriği ve GdMnO3-Ba(Zn1/3Nb2/3)O3 içeriği kontrol edilerek kolayca ayarlanabilir.

Anahtar Kelimeler

XRD, SEM, Ağ Analizör

Teşekkür

Bu çalışma yardımları asla unutulmayacak Emsal Şahin, Salim Şahin ve Prof. Dr. Ayhan Mergen anısına ithafendir

Properties of GdMnO3/PANI/Ba(Zn1/3Nb2/3)O3 Composites For Electromagnetic Shielding Applications

Öz

In this study, GdMnO3-Ba(Zn1/3Nb2/3)O3 was manufactured using the mixture of oxides technique. GdMnO3-Ba(Zn1/3Nb2/3)O3 compositional compounds were formed in various ratios for structural analysis. Single-phase composition of GdMnO3 and Ba(Zn1/3Nb2/3)O3 were produced after sintering between 1200-1400°C. Structural analysis results showed that the second phase did not occur in GdMnO3 and Ba(Zn1/3Nb2/3)O3. X-ray diffraction (XRD) was performed for structural analysis. In addition, GdMnO3/PANI/Ba(Zn1/3Nb2/3)O3 composites were produced by hot pressing method using various amounts of GdMnO3-Ba(Zn1/3Nb2/3)O3 and aniline. The weight ratios of (GdMnO3-Ba(Zn1/3Nb2/3)O3) and aniline were 1:1, respectively. The GdMnO3/PANI/Ba(Zn1/3Nb2/3)O3 compound formed in various weights, and epoxy powder were used to produce microwave shielding effect composites. Using a network analyzer (NA), the microwave shielding effect of GdMnO3/PANI/Ba(Zn1/3Nb2/3)O3 composites was investigated in the range of 8-18 GHz. A minimum shielding effect value of -56.77 dB was obtained at 15.77 GHz at 1.4 mm thickness. The GdMnO3/PANI/Ba(Zn1/3Nb2/3)O3 was produced as composite material and their properties were characterized for shielding effect. This microwave shielding performance can be easily adjusted by controlling the polyaniline content and GdMnO3-Ba(Zn1/3Nb2/3)O3 content in the samples for wider and required frequency bands.

Anahtar Kelimeler

XRD, SEM, Network Analyzer

Kaynakça

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