Putri, Elisa Beliana (2026) Analisis Pengaruh Komposisi Dan Jumlah Lapisan BaFe10,2Cu0,6Ni0,6Zn0,6O19 / Polianilin / Karbon Aktif Dalam Epoksi Terhadap Rugi Refleksi Dan Kekuatan Adhesi Radar Absorbing Material. Other thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Pengembangan material penyerap radar (Radar Absorbing Material/RAM) sangat penting dalam rangka peningkatan kemampuan stealth kapal militer. Sehingga berdasarkan urgensi tersebut, dilakukan penelitian untuk mengembangkan kombinasi filler RAM untuk menganalisis pengaruh komposisi dan jumlah lapisan komposit RAM berbasis BaFe₁₀.₂Cu₀.₆Ni₀.₆Zn₀.₆O₁₉/polianilin/karbon aktif dalam matriks epoksi terhadap rugi refleksi dan kekuatan adhesi. Komposit disintesis melalui metode polimerisasi in situ, kemudian diaplikasikan pada substrat baja A36 menggunakan metode dallenbach layer dengan variasi jumlah dan susunan lapisan. Pengujian meliputi karakterisasi struktur kristal, morfologi, sifat magnetik, konduktivitas, rugi refleksi (menggunakan VNA pada rentang X-band), serta kekuatan adhesi. Hasil penelitian menunjukkan bahwa komposisi optimal pada rasio 15% filler : 85% matriks menghasilkan rugi refleksi -4,98 dB dengan efektivitas penyerapan 68,23% dan kuat rekat 6,7 MPa. Penambahan jumlah lapisan secara bertahap meningkatkan performa penyerapan hingga rugi refleksi -12,95 dB dan efektivitas penyerapan 94,91% pada konfigurasi multilayer, meskipun diikuti penurunan kekuatan adhesi dari 5,885 MPa (single layer) ke nilai 3,16 MPa (multilayer). Mode kegagalan adhesi yang dominan bergeser dari adhesif ke kohesif seiring bertambahnya lapisan, yang menandakan peningkatan kekuatan antarmuka.
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The development of radar absorbing material (RAM) is very important in order to improve the stealth capabilities of military ships. Therefore, based on this urgency, research was conducted to develop a combination of RAM fillers to analyze the effect of the composition and number of layers of BaFe₁₀.₂Cu₀.₆Ni₀.₆Zn₀.₆O₁₉/polyaniline/activated carbon-based RAM composites in an epoxy matrix on reflection loss and adhesive strength. The composite was synthesized using the in situ polymerization method, then applied to an A36 steel substrate using the Dallenbach layer method with variations in the number and arrangement of layers. The tests included characterization of the crystal structure, morphology, magnetic properties, conductivity, reflection loss (using VNA in the X-band range), and adhesive strength. The results showed that the optimal composition at a ratio of 15% filler : 85% matrix produced a reflection loss of -4.98 dB with an absorption effectiveness of 68.23% and an adhesive strength of 6.7 MPa. The gradual addition of layers increased the absorption performance to a reflection loss of -12.95 dB and an absorption efficiency of 94.91% in the multilayer configuration, although this was followed by a decrease in adhesive strength from 5.885 MPa (single layer) to 3.16 MPa (multilayer). The dominant mode of adhesion failure shifted from adhesive to cohesive as the number of layers increased, indicating an increase in interfacial strength.
| Item Type: | Thesis (Other) |
|---|---|
| Uncontrolled Keywords: | Barium M-Heksaferit, Karbon aktif, Kekuatan adhesi, Polianilin, Radar Absorbing Material (RAM), Rugi refleksi, Activated carbon, Barium M-Hexaferrite, Adhesive strength, Polyaniline, Reflection loss |
| Subjects: | Q Science Q Science > QD Chemistry Q Science > QD Chemistry > Polymerization U Military Science > U Military Science (General) |
| Divisions: | Faculty of Industrial Technology and Systems Engineering (INDSYS) > Material & Metallurgical Engineering > 28201-(S1) Undergraduate Thesis |
| Depositing User: | Elisa Beliana Putri |
| Date Deposited: | 26 Jan 2026 08:35 |
| Last Modified: | 26 Jan 2026 08:35 |
| URI: | http://repository.its.ac.id/id/eprint/130424 |
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