PEMBENTUKAN LAPISAN TIPIS KOMPOSIT NiTiAlN/Si3N4 DENGAN METODE ELEKTRODEPOSISI

AGUNG SEPTIAN ARDI PRAKOSO, . (2018) PEMBENTUKAN LAPISAN TIPIS KOMPOSIT NiTiAlN/Si3N4 DENGAN METODE ELEKTRODEPOSISI. Sarjana thesis, UNIVERSITAS NEGERI JAKARTA.

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Abstract

Telah dilakukan pembentukan lapisan tipis komposit Ni-TiAlN/Si3N4 dengan metode elektrodeposisi pada substrat Tungsten Karbida. Sebanyak larutan elektrolit 5ml yang terdiri dari 4 gr/l AlN, 4 gr/l TiN, 0.49 Mol/l H3BO3, 0.17 M NiCl2.6H2O, 0.38 M NiSO4.6H2O, 1.2 gr/l Sodium Dodecyl Sulfate (NaC12H25SO4), dan 10 gr/l Si3N4. Proses pelapisan berlangsung selama 15 menit dengan tegangan listrik sebesar 12V serta variasi arus listrik sebesar 3mA, 4mA dan 5mA. Tujuan penelitian ini adalah menentukan struktur kristal, komposisi, morfologi lapisan, dan nilai kekerasan bahan pada lapisan tipis komposit yang terbentuk dengan variasi arus listrik sebagai parameter penelitian. Sistem elektroda yang digunakan terdiri dari Tungsten Karbida sebagai elektroda kerja (katoda), Pt sebagai elektroda pembanding (anoda), dan AgCl sebagai elektroda acuan (anoda). Berdasarkan hasil karakterisasi Scanning Electron Microscopy (SEM) dan Energy Dispersive Spectroscopy (EDS), arus listrik yang semakin besar membuat morfologi permukaan lapisan semakin halus, terlihat semakin sedikitnya aglomerasi dan semakin berlimpah kandungan unsur logam pelapis serta matriksnya. Berdasarkan hasil karakterisasi X-Ray Diffraction (XRD) dan uji keras Vickers, variasi arus listrik memberikan pengaruh pada ukuran butir kristal dan memengaruhi nilai kekerasan bahan lapisan tipis komposit yang terbentuk. *** Thin film of Ni-TiAlN/Si3N4 composite has been formed by electrodeposition method on Tungsten Carbide substrate. Total of 5ml electrolyte solution consisting of 4 gr/l AlN, 4 gr/l TiN, 0.49 M H3BO3, 0.17 M NiCl2.6H2O, 0.38 M NiSO4.6H2O, 1.2 gr/l Sodium Dodecyl Sulfate (NaC12H25SO4), and 10 gr/l Si3N4. The coating process lasts for 15 minutes with an electric voltage of 12V and variations in electrical current of 3mA, 4mA and 5mA. The purpose of this study was to determine the crystal structure, composition, morphology, and the hardness of composite film with electric current as variations of study parameter. The electrodes system using Tungsten Carbide as the working electrode (cathode), Pt as the counter electrode (anode), and AgCl as the reference electrode (anode). Based on the results of characterization of Scanning Electron Microscopy (SEM) and Energy Dispersive Spectroscopy (EDS), the greater electric current makes the surface morphology of the coated substrate more smooth, less agglomeration and more abundant the metal composition coating and matrix. Based on the results of X-Ray Diffraction (XRD) characterization and Vickers hardness test, variations in electric current have an effect on the size of the crystal grain and influenced the hardness value of the composite thin film material formed.

Item Type:	Thesis (Sarjana)
Additional Information:	1). Dr. Esmar Budi, M.T ; 2). Dr. Widyaningrum Indrasari, M.Si
Subjects:	Sains > Fisika
Divisions:	FMIPA > S1 Fisika
Depositing User:	PKL .
Date Deposited:	15 Jun 2026 08:16
Last Modified:	15 Jun 2026 08:16
URI:	http://repository.unj.ac.id/id/eprint/66324

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