Karakterisasi Impedansi Komposit Isotropik Pani/Bam pada Pelapisan Double Layer sebagai Radar Absorbing Material (RAM)

Muhammad Rizki Alfirdaus, Mochamad Zainuri
Submission Date: 2016-07-25 14:18:52
Accepted Date: 2016-11-23 18:14:55

Abstract


Karakterisasi impedansi komposit isotropik PANi/BAM pada pelapisan double layer sebagai Radar Absorbing Material (RAM) telah berhasil dilakukan. Penelitian ini bertujuan untuk mengidentifikasi nilai impedansi serta mengetahui kemampuan penyerapan gelombang mikro yang dihasilkan dari pelapisan double layer komposit PANi/BAM. BAM (BaFe11.7Zn03O19) berhasil disintesis dengan metode kopresipitasi dan sintesis PANi dilakukan dengan metode polimerisasi in situ. Identifikasi fasa BAM dan PANi dilakukan dengan menggunakan XRD, sedangkan sifat kemagnetan material magnetik BAM diidentifikasi dengan menggunakan VSM dan diperoleh medan koersivitas sebesar 0,043 T. Karakterisasi impedansi dan kemampuan penyerapan terhadap gelombang mikro dilakukan dengan menggunakan VNA pada frekuensi X-Band. Berdasarkan hasil pengujian VNA, dihasilkan nilai impedansi dan rugi refleksi (RL) maksimum dari pelapisan P-PB, PB-P, B-PB serta PB-B berturut-turut yaitu 406,142 Ω, 478,438 Ω, 612,564 Ω serta 632,216 Ω dan -49,57 dB, -31,30 dB, -22,41 dB dan -22,07 dB. Pelapisan double layer komposit PANi/BAM sangat efektif diterapkan sebagai RAM pada rentang frekuensi X-Band, karena material komposit PANi/BAM dapat meningkatkan kemampuan penyerapan serta memperlebar pita penyerapan.



Keywords


barium m-hexaferrite; double layer; impedansi; polianilin; radar absorbing material (RAM);rugi refleksi

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