SANTA MELENIA PUTRI SINAGA, . (2022) PENGARUH VARIASI RAPAT ARUS TERHADAP PEMBENTUKAN DAN KARAKTERISASI LAPISAN KOMPOSIT Ni/Si3N4 DENGAN METODE ELEKTRODEPOSISI. Sarjana thesis, UNIVERSITAS NEGERI JAKARTA.
![[img]](http://repository.unj.ac.id/style/images/fileicons/text.png) |
Text
1. COVER.pdf Download (18kB) |
|
Text
2. LEMBAR PENGESAHAN DAN LEMBAR PERNYATAAN.pdf Download (466kB) |
|
Text
3. ABSTRAK.pdf Download (55kB) |
|
Text
4. ABSTRACT.pdf Download (54kB) |
|
Text
5 kATA PENGANTAR.pdf Download (139kB) |
|
Text
6. DAFTAR ISI, TABEL, GAMBAR DAN LAMPIRAN.pdf Download (412kB) |
|
Text
7. BAB I.pdf Download (288kB) |
|
Text
8. BAB II.pdf Restricted to Registered users only Download (1MB) |
|
Text
9. BAB III.pdf Restricted to Registered users only Download (1MB) |
|
Text
10. BAB IV.pdf Restricted to Registered users only Download (1MB) |
|
Text
11. BAB V.pdf Restricted to Registered users only Download (56kB) |
|
Text
12. DAFTAR PUSTAKA.pdf Download (463kB) |
|
Text
13. LAMPIRAN.pdf Restricted to Registered users only Download (4MB) |
|
Text
14. DAFTAR RIWAYAT HIDUP.pdf Download (137kB) |
Abstract
Telah dilakukan penelitian yaitu menganalisa morfologi, struktur kristal dan kekerasan hasil pembentukan elektrodeposisi dengan variasi rapat arus lapisan komposit Ni/Si3N4. Proses pelapisan tersebut menggunakan metode elektrodeposisi selama 30 menit dan suhu sebesar 45 pada substrat Tungsten Karbida dengan komposisi larutan elektrolit yang terdiri dari NiCl2.6H2O 0.17 M, NiSO4.6H2O 0.38 M, Si3N4 6 gr/L, H3BO3 0.49 M, dan Sodium Dodecyl Sulfate (SDS) 0,6 gr/L. Elektroda yang digunakan yaitu Platina (Pt) sebagai elektroda pembanding dan Tungsten Karbida (WC) sebagai elektroda kerja. Variasi rapat arus yang digunakan yaitu 0,4 mA/mm2, 0,6 mA/mm2 dan 0,8 mA/mm2. Selanjutnya, Penelitian ini menggunakan Karakterisasi Scanning Electron Microscopy (SEM) yang menunjukkan bahwa semakin besar variasi rapat arus maka morfologi permukaan lapisan komposit Ni/Si3N4 yang terbentuk semakin halus dan lebih rata meskipun masih terdapat sedikit retakan, Energy Dispersisive Spectroscopy (EDS) menunjukkan bahwa pada sampel terdapat unsur Ni, Si dan N sesuai dengan lapisan komposit Ni/Si3N4 yang dibentuk. Berdasarkan hasil karakterisasi X-Ray Diffraction (XRD) semakin kecil ukuran kristal menurun seiring meningkatnya rapat arus dan uji keras Vickers kekerasan tertinggi terdapat pada rapat arus 0,6 mA/mm2. ***************************** Research has been carried out, namely analyzing the morphology, crystal structure and hardness of the electrodeposition formation results with variations in the current density of the Ni/Si3N4 composite layer. The coating process uses the electrodeposition method for 30 minutes and a temperature of 45 on a Tungsten Carbide substrate with an electrolyte solution composition consisting of 0.17 M NiCl2.6H2O, 0.38 M NiSO4.6H2O, 6 gr/L Si3N4, 0.49 M H3BO3, and Sodium Dodecyl Sulfate. (SDS) 0.6 gr/L. The electrodes used are Platinum (Pt) as the reference electrode and Tungsten Carbide (WC) as the working electrode. The variations in current density used are 0.4 mA/mm2, 0.6 mA/mm2 and 0.8 mA/mm2. Furthermore, this study uses a Scanning Electron Microscopy (SEM) characterization which shows that the greater the variation in current density, the surface morphology of the Ni/Si3N4 composite layer formed is smoother and flatter even though there are still few cracks, Energy Dispersive Spectroscopy (EDS) shows that in the sample contained elements of Ni, Si and N according to the formed Ni/Si3N4 composite layer. Based on the results of the X-Ray Diffraction (XRD) characterization, the smaller the crystal size decreases with increasing current density and the Vickers hard test, the highest hardness is found at a current density of 0.6 mA/mm2.
| Item Type: | Thesis (Sarjana) |
|---|---|
| Additional Information: | 1). Dr. Esmar Budi, M.T. ; 2). Dr. Iwan Sugihartono M. Si. |
| Subjects: | Sains > Fisika |
| Divisions: | FMIPA > S1 Fisika |
| Depositing User: | PKL . |
| Date Deposited: | 19 Nov 2024 01:57 |
| Last Modified: | 19 Nov 2024 01:57 |
| URI: | http://repository.unj.ac.id/id/eprint/52136 |
Actions (login required)
 |
View Item |
