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Esmar Budi
Jurusan Fisika FMIPA, Universitas Negeri Jakarta
Humanities Education Electrical & Electronics Engineering Energy Languange, Linguistic, Communication & Media Mathematics Physics Social Sciences Other

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PEMBENTUKAN LAPISAN KOMPOSIT Ni- TiAlN/Si3N4 MENGGUNAKAN METODE ELEKTRODEPOSISI DENGAN VARIASI TEMPERATUR Assita Wahyu Andiani; Esmar Budi; Iwan Sugihartono
PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) Vol 8 (2019): PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) SNF2019
Publisher : Program Studi Pendidikan Fisika dan Program Studi Fisika Universitas Negeri Jakarta, LPPM Universitas Negeri Jakarta, HFI Jakarta, HFI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (86.992 KB) | DOI: 10.21009/03.SNF2019.02.PA.20

Abstract

Telah dilakukan penelitian pembentukan lapisan komposit Ni-TiAlN/Si3N4 untukmengkaji pengaruh temperatur terhadap morfologi lapisan. Proses pelapisan menggunakan metode elektrodeposisi dengan arus sebesar 5 mA selama 15 menit. Lapisan komposit ini terbentuk pada substrat tungsten karbida dengan komposisi larutan elektrolit yang terdiri dari 6 g/L AlN, 6 g/L TiN, 40 g/L H3BO3, 0.6 g/L Si3N4, 0.17 M NiCl2.6H2O, 0.38 M NiSO4.6H2O dan 0,6 g/L Sodium Dodecyl Sulfate. Variasi temperatur yang digunakan 35°C, 40°C dan 45°C. Penelitian ini menggunakan Karakterisasi Scanning Electron Microscopy (SEM) yang menunjukan bahwa semakin besar variasi temperatur maka morfologi permukaan lapisan komposit Ni-TiAlN/Si3N4 yang terbentuk semakin tidak merata, bentuk butiran lebih kasar dan tidak homogen. Research was conducted on coating process of the Ni-TiAlN/Si3N4 composite film to study the effect of various temperature on the surface morphology of the Ni-TiAlN/Si3N4 composite film. The coating process was conducted by electrodeposition method with a 5 mA of current for 15 minutes on tungsten carbide substrate with electrolyte solution that consists of 6 g/L AlN, 6 g/L TiN, 40 g/L H3BO3, 0.6 g/L Si3N4, 0.17 M NiCl2.6H2O, 0.38 M NiSO4.6H2O dan 0,6 g/L Sodium Dodecyl Sulfate. Variations temperature is 35°C, 40°C and 45°C The composite film morphology was characterized by Scanning Electron Microscopy (SEM). The results showed that as temperature increased, the Ni-TiAlN/Si3N4 composite film morphology was formed increasingly uneven, has coarser grain shape and not homogenous.
EFFECT OF HIGH CURRENT DENSITY ON THE MORPHOLOGY OF NI/TIN/ALN COMPOSITE LAYERS USING PULSE ELECTRODEPOSITION METHOD: PENGARUH RAPAT ARUS TINGGI PADA MORFOLOGI LAPISAN KOMPOSIT NI/TIN/ALN DENGAN METODE ELEKTRODEPOSISI ARUS PULSA Dhea Laila Putri Afifah; Esmar Budi; Teguh Budi Prayitno
PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) Vol. 13 (2025): PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) SNF2024
Publisher : Program Studi Pendidikan Fisika dan Program Studi Fisika Universitas Negeri Jakarta, LPPM Universitas Negeri Jakarta, HFI Jakarta, HFI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21009/03.1301.FA26

Abstract

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, the composition of the electrolyte solution that will be used are NiCl2.6H2O 0.17 M, NiSO4.6H2O 0.38 M, TiN 6 gr/L, AlN 10gr/L, H3BO3 0.49 M, and Sodium Dodecyl Sulfate (SDS) 0.6 gr/L. Platinum (Pt) will be used on the counter electrode and Tungsten Carbide (WC) will be used on the working electrode. Variations in pulse current density that will be used are 1 mA/mm2 and 1.2 mA/mm2. The electrodeposition process will be carried out for 30 minutes at 40°C temperature and stirring rate 600 rpm. After the electrodeposition process, morphological characterization was examinated using a Scanning Electron Microscope (SEM). SEM results at 1000x magnification show that at variations in pulse current density of 1 mA/mm2 the particle size is larger, the distribution of particles is quite even, there are neither cracks nor visible agglomeration on the substrate surface, whereas at a current density of 1.2 mA/mm2 ,the particles look smaller, the particles are evenly distributed, there are neither visible cracks nor agglomerations on the substrate surface, so the surface looks smoother. The results show that as the current density increases, the layer surface morphology will become smoother.
MORPHOLOGY AND COMPOSITION FORMATION IN NICKEL SILICON NITRIDE (NI/SI3N4) COMPOSITE LAYERS USING PULSE ELECTRODEPOSITION METHOD: PEMBENTUKAN MORFOLOGI DAN KOMPOSISI PADA LAPISAN KOMPOSIT NICKEL SILICON NITRIDE ( NI/SI3N4 ) MENGGUNAKAN METODE ELEKTRODEPOSISI ARUS PULSA Irsya Luthfiah Ramadhyagita; Esmar Budi; Teguh Budi Prayitno
PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) Vol. 13 (2025): PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) SNF2024
Publisher : Program Studi Pendidikan Fisika dan Program Studi Fisika Universitas Negeri Jakarta, LPPM Universitas Negeri Jakarta, HFI Jakarta, HFI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21009/03.1301.FA27

Abstract

Metal plating is commonly used in industry to modify surface morphology without altering its original properties. A composite Ni/Si3N4 layer on Tungsten Carbide (WC) was formed using a current density of 0.25 mA/mm2 to analyze the surface morphology and composition of the Ni/Si3N4 composite layer. The formation process employed the pulsed current electrodeposition method at a temperature of 40°C, with a stirring rate of 600 rpm for 1 hour. The solution composition included 0.38 M Ni2SO4·6H2O, 0.17 M Ni2Cl2·6H2O, 0.6 g/L Si3N4, 0.6 g/L SDS (Sodium Dodecyl Sulfate), and 0.49 M H3BO3. The results showed the presence of Ni and Si metal elements with mass compositions of 85.17% and 0.82%, respectively. Surface morphology scanning revealed a smooth surface with slight agglomeration on the substrate.
ANALYSIS OF FORMATION AND CHARACTERIZATION OF Ni-TiN-AlN COMPOSITE LAYERS USING ELECTRODEPOSITION METHOD WITH PULSE CURRENT DENSITY VARIATIONS: ANALISIS PEMBENTUKAN DAN KARAKTERISASI LAPISAN KOMPOSIT Ni-TiN-AlN DENGAN METODE ELEKTRODEPOSISI TERHADAP VARIASI RAPAT ARUS PULSA Syamsinar; Esmar Budi; Teguh Budiprayitno
PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) Vol. 13 (2025): PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) SNF2024
Publisher : Program Studi Pendidikan Fisika dan Program Studi Fisika Universitas Negeri Jakarta, LPPM Universitas Negeri Jakarta, HFI Jakarta, HFI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21009/03.1303.FA28

Abstract

In this paper, the formation of a Ni-TiN-AlN composite coating layer is carried out to study the effect of variations in pulse current density on surface morphology and coating composition. The coating process is carried out using the electrodeposition method. The Ni-TiN-AlN composite layer was formed on a Tungsten Carbide (WC) substrate with an electrolyte solution composition consisting of 0.17 M NiCl2.6H2O, 0.38 M NiSO4.6H2O, 0.49 M H3BO3, 0.6 g/l Sodium Dodecyl Sulfate (SDS), particles TiN strengthening powder of 6 gr/l and AlN powder of 10 g/l. Electrodeposition on the substrate was carried out for 30 minutes and variations in current density used were 0.15 mA/mm2, 0.25 mA/mm2, and 0.35 mA/mm2. The Ni-TiN-AlN composite layer was characterized using SEM-EDS (Scanning Electron Microscopy-Energy Dispersive Spectroscopy), X-Ray Diffraction (XRD), and Hardness Test (Vickers). The results show that the surface morphology and composition of the Ni-TiN-AlN composite layer are influenced by the current density used.
DESIGN AND DEVELOPMENT OF A PULSE GENERATOR SYSTEM FOR THE FORMATION AND CHARACTERIZATION OF Ni-TiN/Si3N4 COMPOSITE LAYERS USING PULSE CURRENT DENSITY ELECTRODEPOSITION METHOD: RANCANG BANGUN SISTEM PULSE GENERATOR UNTUK PEMBENTUKAN DAN KARAKTERISASI LAPISAN KOMPOSIT Ni-TiN/Si3N4 DENGAN METODE ELEKTRODEPOSISI RAPAT ARUS PULSA Arsyan Fadilah; Esmar Budi; Teguh Budi Prayitno
PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) Vol. 13 (2025): PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) SNF2024
Publisher : Program Studi Pendidikan Fisika dan Program Studi Fisika Universitas Negeri Jakarta, LPPM Universitas Negeri Jakarta, HFI Jakarta, HFI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21009/03.1301.FA29

Abstract

This research aims to make a pulse generator system and test the design results in the electrodeposition process by analyzing the composition and surface morphology of the Ni-TiN/Si3N4 composite layer formed. The Ni-TiN/Si3N4 coating is used because it can increase hardness, seal diffusion to the substrate, and prevent oxidation at high temperatures. Tungsten carbide (WC) is coated to reduce wear, improve the surface, increase adhesion, and strength of the substrate without changing the original properties. Pulse current electrodeposition uses Pulse Width Modulation (PWM) circuit with IC 555 as pulse generator. The result of the Pulse Generator system design is a pulse wave that can be adjusted by adjusting the duty cycle value using a potentiometer and can be observed using an oscilloscope, and the pulse height or output current can be adjusted as needed and can be measured using a multimeter. The electrodeposition process was carried out for 30 minutes at 40ºC with a stirring rate of 600 rpm. Morphological scanning using a Scanning Electron Microscope (SEM) showed a rough surface, uneven particle size distribution, and agglomeration in the formed layer. Energy Dispersive Spectroscopy (EDS) scanning results showed the success of the coating formed with the presence of Ni, TiN, and Si3N4 metal elements with a thickness of 2.7191 μm.
NATURAL ZEOLITE ACTIVATION AND ZAA/Ni CATALYST SYNTHESIS USING THE WET IMPREGNATION METHOD: AKTIVASI ZEOLIT ALAM DAN SINTESIS KATALIS ZAA/Ni MENGGUNAKAN METODE IMPREGNASI BASAH Elsa Regita Hutami; Esmar Budi; Saddam Husin; Dita Adi Saputra; Muhammad Dikdik Gumelar
PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) Vol. 13 (2025): PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) SNF2024
Publisher : Program Studi Pendidikan Fisika dan Program Studi Fisika Universitas Negeri Jakarta, LPPM Universitas Negeri Jakarta, HFI Jakarta, HFI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21009/03.1301.FA30

Abstract

Zeolite has been widely used as a heterogeneous catalyst in catalytic cracking reactions. The role of zeolite as a catalyst depends on the amount and site of acid present on the surface of the catalyst. The imposition of nickel metal on the pores of zeolite can increase the surface area of the catalyst, which allows more reactant molecules to interact with the active site, thereby increasing the selectivity of the product. This study aims to study the process of natural zeolite activation and the manufacture of catalysts made from nickel-impregnation active natural zeolite consisting of BET and XRF characteristics. The zeolite used in this study is natural zeolite from Sukabumi. The catalyst variations used are activated natural zeolite with H2SO4 (ZAA) and ZAA/Ni with a nickel concentration of 2%. The type of nickel used is NiSO4 MHP (Mixed Hydroxide Precipitate) 2%. The results of the study showed an increase in the surface area of natural zeolite from 61.59 m2/g to 91.72 m2/g. Activation of zeolite using sulfuric acid has succeeded in reducing the impurity elements contained in natural zeolites such as Na, K, Cl, Mg and Fe. Nickel that has been successfully impregnated into zeolite pores by 0.30% in the ZAA/Ni catalyst.
PHYSICS E-MODULE WITH A SCIENTIFIC APPROACH ON GLOBAL WARMING MATERIAL FOR GRADE 10: E-MODULE FISIKA DENGAN PENDEKATAN SAINTIFIK PADA MATERI PEMANASAN GLOBAL UNTUK KELAS 10 Syafira Ghassani; Vina Serevina; Esmar Budi
PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) Vol. 13 (2025): PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) SNF2024
Publisher : Program Studi Pendidikan Fisika dan Program Studi Fisika Universitas Negeri Jakarta, LPPM Universitas Negeri Jakarta, HFI Jakarta, HFI

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

This research is to design learning media that can be used anytime and anywhere, to follow student learning culture in current technological developments. The research uses research and development (R&D) methods, with a 4D research model (Define, Design, Develop, and Disseminate). Initial research data collection at the Define stage was carried out by observing at school, interviews with teachers and students, and giving questionnaires to students. Based on data analysis, students need learning media that is practical, can be used anywhere and at any time, and they agree to carry out research by designing e-modules with a scientific approach to global warming material. The expected results of this e-module are that students are more interested in learning, have easier access to learning resources, and can be used for students with diverse learning characteristics, because it is equipped with various pictures, explanatory videos and questions related to global warming in the e-module . Data collection in this research was carried out by giving questionnaires to media experts and learning experts, as well as questionnaires to physics teachers and students.
DEVELOPMENT OF DIGITAL PHYSICS MODULE (DPM) BASED ON DISCOVERY LEARNING IN THE CONCEPT OF PARABOLIC MOTION: PENGEMBANGAN DIGITAL MODULE PHYSICS (DMP) BERBASIS DISCOVERY LEARNING PADA KONSEP GERAK PARABOLA Irsya Affiyani Darlestia; Firmanul Catur Wibowo; Esmar Budi
PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) Vol. 13 (2025): PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) SNF2024
Publisher : Program Studi Pendidikan Fisika dan Program Studi Fisika Universitas Negeri Jakarta, LPPM Universitas Negeri Jakarta, HFI Jakarta, HFI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21009/03.1301.PF13

Abstract

In today’s technological era, gadgets have become a necessity in life, one of which is in theworld of education, which can make it easier for teachers and students in the learning process. Therefore, this research aims to produce learning media in the form of digital physics modules based on Discovery Learning on the concept of parabolic motion. The method used in this research is the Research and Development (R&D) methodwith the ADDIE approach which includes five development stages, namely Analysis, Design, Development, Implementation and Evaluation. Based on the results of the needs analysis, as many as 76.9% of students are interested in using digital modules as learning resources. This research will be validated by media experts and material experts, after which it will be tested by teachers and high school students in the form of a questionnaire. It is recommended that the product of this research can be used as a valid learning medium for physics learning in class to understand the concept of parabolic motion.
MORPHOLOGICAL ANALYSIS AND COMPOSITION OF NICKEL LAYER USING PULSE CURRENT ELECTRODEPOSITION: ANALISIS MORFOLOGI DAN KOMPOSISI LAPISAN NIKEL MENGGUNAKAN ELEKTRODEPOSISI RAPAT ARUS PULSA Bayyinah; Esmar Budi; Teguh Budi Prayitno
PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) Vol. 13 (2025): PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) SNF2024
Publisher : Program Studi Pendidikan Fisika dan Program Studi Fisika Universitas Negeri Jakarta, LPPM Universitas Negeri Jakarta, HFI Jakarta, HFI

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

In this study, Nickel layers were deposited on a Tungsten Carbide (WC) substrate using pulse current densities of 0.35 and 0.4 mA/mm2. The Nickel deposition was performed by electrodeposition for 30 minutes at a temperature of 40°C with a stirring rate of 600 rpm. Based on the SEM characterization results, the Nickel layer at a magnification of 1000x showed that at a current density of 0.35 mA/mm2, the particle distribution was uniform, with no cracks or agglomeration on the substrate surface, and the particles were larger and more homogeneous. In contrast, at a current density of 0.4 mA/mm2, the particle distribution was less uniform, there were no cracks or agglomeration on the substrate surface, and the particles appeared smaller and homogeneous, resulting in a smoother Nickel layer surface. The EDS scanning results indicated the successful formation of the Nickel layer, with the presence of Ni metal content, which increased with the current density from 0.35 to 0.4 mA/mm2.
Tinjauan Penerapan Microlearning dalam Pembelajaran Fisika Siti Awaliyah Saripah; I Made Astra; Esmar Budi
J-CEKI : Jurnal Cendekia Ilmiah Vol. 4 No. 5: Agustus 2025
Publisher : CV. ULIL ALBAB CORP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56799/jceki.v4i5.10920

Abstract

Microlearning dapat menjadi solusi untuk mengatasi rendahnya motivasi siswa dalam belajar. Penelitian ini menggunakan jenis penelitian A Systematical Literature Review (SLR). Penelitian ini dilakukan dengan proses pencarian melalui Google Scholar melalui aplikasi Publish or Perish, dengan batas waktu 10 tahun terakhir yakni dari 2013 hingga 2023. Hasil dari penelitian ini mencatat bahwa terjadi peningakatan penelitian microlearning tahun 2017 sampai 2021. Penggunaan Microlearning dalam pembelajaran Fisika hanya ada tiga jurnal dan semua penelitian merupakan penelitian R&D. Hasil ini menunjukan bahwa masih kurangnnya penggunaan microlearning dalam pembelajaran Fisika, padahal pembelajaran microlearning dapat dilakukan dalam waktu yang singkat, materi yang dipelajari sedikit, dan dapat menjadikan peserta didik memiliki kemandirian dalam proses belajarnya. pembelajaran microlearning dapat menjadi solusi ideal untuk instruksi pembelajaran terbaru karena sifatnya penelitian berikutnya direkomendasikan untuk meningkatkan frekuensi penelitian microlearning dalam proses pembeljaran fisika. Penelitian selaanjutnya direkomendasikan penelitian yang menginformasikan dengan jelas tentang instrumen penelitiannya, beserta validitas dan reliabilitas instrumennya.
Co-Authors Adinda Adzkia Zhafira Dahlan Amalinda Maret Dwi Cahyani Amanda Agustin Nurzahra Arsyan Fadilah Assita Wahyu Andiani Bayyinah Dhea Laila Putri Afifah Dita Adi Saputra Elsa Regita Hutami Ely Rismawati Firmanul Catur Wibowo I Made Astra Irsya Affiyani Darlestia Irsya Luthfiah Ramadhyagita Iwan Sugihartono Lutvi Vitria Kadarwati Muhammad Dikdik Gumelar Saddam Husin Siti Awaliyah Saripah Syafira Ghassani Syamsinar Teguh Budi Prayitno Teguh Budiprayitno Vina Serevina Widyaningrum Indrasari