DHEA LAILA PUTRI AFIFAH, . (2024) PEMBENTUKAN DAN KARAKTERISASI LAPISAN KOMPOSIT NI-TIN-ALN MENGGUNAKAN METODE ELEKTRODEPOSISI DENGAN VARIASI RAPAT ARUS PULSA 0,45 MA/MM2 SAMPAI DENGAN 0,65 MA/MM2. Sarjana thesis, UNIVERSITAS NEGERI JAKARTA.
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Abstract
Penggunaan arus pulsa untuk elektrodeposisi memiliki keunggulan yaitu terbentuknya ukuran butir yang lebih kecil, porositas, dan homogenitas, sehingga berdampak pada peningkatan sifat material. Pada penelitian ini, variasi rapat arus pulsa yang akan digunakan yaitu 0,45 mA/mm2, 0,55 mA/mm2 dan 0,65 mA/mm2. Proses elektrodeposisi akan dilakukan selama 30 menit pada suhu 40°C dan laju pengadukan 600 rpm. Setelah proses elektrodeposisi, dilakukan karakterisasi morfologi dan komposisinya menggunakan SEM-EDS. Didapatkan ketebalan lapisan 1,27 μm, 1,11 μm, 0,31 μm. Semakin tinggi rapat arus, hasil morfologi semakin halus. Hasil analisis XRD menunjukkan struktur kristal dan ukuran kristal, pengolahan data XRD menggunakan software Match! 4. Naiknya rapat arus menyebabkan peningkatan kekerasan pada lapisan komposit Ni-TiN-AlN Kata Kunci: Lapisan Ni-TiN-AlN, Elektrodeposisi, Rapat Arus, Ketebalan Lapisan, Struktur Kristal, Regangan Kisi, Kerapatan Dislokasi, Kekerasan. ***** The use of pulse current for electrodeposition has the advantage of forming smaller grain sizes, porosity and homogeneity, thus having an impact on improving material properties. In this research, variations in pulse current density that will be used are 0,45 mA/mm2, 0,55 mA/mm2 and 0,65 mA/mm2. The electrodeposition process will be carried out for 30 minutes at a temperature of 40°C and a stirring rate of 600 rpm. After the electrodeposition process, the morphology and composition were characterized using SEM-EDS. Obtained layer thickness of 1.27 μm, 1.11 μm, 0,31 μm. The higher the current density, the smoother the morphology results. The results of the XRD analysis show the crystal structure and crystal size. XRD data processing uses Match! 4. Increasing the current density causes a decrease in lattice strain and an increase in hardness in the Ni-TiN-AlN composite layer. Keywords: Ni-TiN-AlN Composite Coatings, Electrodeposition, Current Density, Layer Thickness, Crystal Structure, Dislocation Density, Hardness.
Item Type: | Thesis (Sarjana) |
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Additional Information: | 1) Dr. Esmar Budi M.T 2) Dr. Teguh Budi Prayitno, M.Si |
Subjects: | Sains > Fisika |
Divisions: | FMIPA > S1 Fisika |
Depositing User: | Users 24805 not found. |
Date Deposited: | 12 Aug 2024 04:04 |
Last Modified: | 12 Aug 2024 04:04 |
URI: | http://repository.unj.ac.id/id/eprint/48924 |
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