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All Journal Natural B Praxis : Jurnal Sains, Teknologi, Masyarakat dan Jejaring Jurnal Informatika Ekonomi Bisnis METAL Proceeding of The International Conference on Mathematical Sciences, Natural Sciences, and Computing
Antonius Prisma Jalu Permana
Universitas Katolik Widya Karya Malang
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Electrical & Electronics Engineering Energy Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Mechanical Engineering Public Health

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The design of Plasma Reactor and Study of Oxgyen Gas Flow Effect against to the Carbon Ashing Rate in Steel K110 Antonius Prisma Jalu Permana; Bernardus Crisanto Putra Mbulu
Natural B, Journal of Health and Environmental Sciences Vol 4, No 4 (2018)
Publisher : Natural B, Journal of Health and Environmental Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (897.975 KB)

Abstract

Thin film technology is a green technology in order to decrease industrial waste. The need of thin film cleaner in recoating process is a must. Build up of a plasma reactor using oxygen gas and generate with 2.45GHz microwave was studied. The main objective of this research was to determine alternative plasma generation using high frequency microwave 2.45GHz as a thin film cleaning media on thin film technology. The results show that plasma could generate with maximum pressure at 3cmHg or 30 Torr and it could decrease carbon on surface of steel K110.
Ch2FCF3 Gas Flow Rate Effects of SiO2 Plasma Etching Rate on Quartz Crystal Microbalance Antonius Prisma Jalu Permana; Dionysius Joseph Djoko HS; Masruroh Masruroh
Natural B, Journal of Health and Environmental Sciences Vol 3, No 4 (2016)
Publisher : Natural B, Journal of Health and Environmental Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (418.546 KB) | DOI: 10.21776/ub.natural-b.2016.003.04.1

Abstract

Effect of gas flow rate on the surface of quartz crystal SiO2 during plasma etching was studied. The etching process was applied using the capacitively coupled plasma (CCP) reactor generated with 100 W power AC generator at low frequency of 40 kHz using a gas flow of CH2FCF3. The main objective of this study was to determine the effect of changing gas flow rate on the plasma etching rate on the SiO2 surfaces. Gas flow rate was varied between 20-40 mL/min, while keeping all other plasma parameters constant. The etched surface of SiO2 was analyzed using white-light profilometer (Topography Measurement System (TMS 1200 Micro Lab)). The results show the physical etching processes influenced the rate of etching at a low gas flow rate, while the higher flow rate influence reactive ion etching (RIE) in the etching process. The maximum etching rate is found at 7.753 nm / min achieved in plasma etching process. 
Rancang Bangun Mesin Pengering Menjes Gombal Dengan Studi Kasus Pengaruh Variasi Waktu Dan Temperatur Bernardus Crisanto Putra Mbulu; Antonius Prisma Jalu Permana
Praxis : Jurnal Sains, Teknologi, Masyarakat dan Jejaring Vol 2, No 2: Maret 2020
Publisher : Soegijapranata Catholic University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24167/praxis.v2i2.2531

Abstract

Menjes is an food that was made by tofu pulp. In order to be made a menjes chis, it must be dried as dry as possible. In this research, it’ll develop a menjes dryer with variation of heat and time in order to calculate the efficiency of the dryer. The results, drying process using menjes dryer was faster than ordinary process. If menjes dried by sunlight, it need 3 hour to decrease 14% of water level inside menjes, but if menjes dryed by menjes dryer it only need an hour to decrease 12,33% water level using T=400C heat source temperatur and 8.6% using T=500C. Keywords: Menjer, Dryer, Menjes Chips, Water Level Abstrak Menjes merupakan makanan berbahan dasar kedelai yang umumnya terbuat dari ampas tahu. Untuk dibuat menjadi keripik menjes, menjes tersebut harus dikeringkan sekering mungkin. Pada penelitian ini, dilakukan rancang bangun mesin pengering menjes dengan variasi temperatur pemanasan dan lama pemanasan. Hasil dari penelitian ini pengeringan menggunakan mesin pengering menjes lebih cepat dibandingkan dijemur di matahari. Proses pengeringan menjes dengan dijemur hanya bisa menurunkan kadar air hingga 14% dalam waktu 3 jam, sedangkan dengan menggunakan pengering menjes dapat menurunkan kadar air 12,33% pada T=400C dan 8,6% pada T=500C dalam waktu 1 jam. Kata Kunci: Menjes, Pengering, Keripik Menjes, Kadar air
Analisa Desain dan Perancangan Ruang Vakum Medium Sebagai Media Pembangkitan Plasma Oksigen Menggunakan Gelombang Mikro 2,45 GHZ Antonius Prisma Jalu Permana; Danang Murdiyanto; Bernardus Crisanto Putra Mbulu
Praxis : Jurnal Sains, Teknologi, Masyarakat dan Jejaring Vol 2, No 2: Maret 2020
Publisher : Soegijapranata Catholic University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24167/praxis.v2i2.2532

Abstract

In line with the development of thin-film technology, its also developing plasma-based removal techniques such as plasma ashing. Plasma is an ionized gas-like phase. Ionized gas when the temperature approaches or exceeds atomic ionization energy. The atoms are ionized into positive and negative ions. The purpose of this research to analyze the working system of plasma generation using 2,45GHz microwaves. The plasma reactor was successfully operating, but it only maintain to generate plasma in short time. The reactor broke because it couldn’t hold the bombardment energy of particles which the energy was 1,623x10-24 for each every second. At last, the reactor could maintain the plasma only for ±240 s. Keywords: microwave, plasma, ashing, vacuum, mean free path, ionization.
Analisa Korelasi Motivasi Koperasi, Manfaat Koperasi dan Kualitas Pelayanan terhadap Partisipasi Anggota Antonius Prisma Jalu Permana; Jovita Vicka Bayu Wardani
Jurnal Informatika Ekonomi Bisnis Vol. 5, No. 1 (March 2023)
Publisher : SAFE-Network

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37034/infeb.v5i1.219

Abstract

The existence of cooperatives is expected to be able to realize a populist economy that grows rapidly and is just and in accordance with the goals of sustainable development (SDGs). The participation of members of the Kosayu Credit Cooperative is still considered insufficient. This can be seen from the decrease in the number of members' savings and an increase in Non-Performing Loans (NPL) or members' bad loans. The purpose of this study was to determine the effect of cooperative members' motivation, benefits for members, and cooperative service quality both partially and simultaneously on the participation of Kosayu Kopdit members. The population in this study were all members of the Kosayu Kopdit. From the partial hypothesis testing, it is known that the cooperative motivation variable has a positive effect of 16.4%, the member benefits variable has an effect of 36.2%, and the service quality variable has an effect of 21.7% on the participation of Kosayu Kopdit members. While simultaneously, the variables of motivation to cooperate, the variables of benefits for members, and the variables of service quality jointly affect member participation by 40.4% and the remaining 59.6% is influenced by other factors.
2025 ALUMINUM COATING USING CARBON POWDER WITH TEMPERATURE OF 600°C, 700°C AND 800°C USING HEAT TREATMENT METHOD Antonius Prisma Jalu Permana; Nereus Tugur Redationo; Emilianus Chris Welafubun
Mechanical, Energy and Material (METAL) Vol. 1 No. 1 (2023): Juni: Mechanical, Energy and Material (METAL)
Publisher : Universitas Katolik Widya Karya Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59581/metal.v1i1.41

Abstract

Aluminum coating in Indonesia is one of the business fields that has experienced an increase in development and rapid progress starting from the type of coating used to produce coatings that also vary. The purpose of this study was to determine the hot temperatures of 600°C, 700°C and 800°C in the aluminum coating process uses carbon powder and determines the effective hardness values ​​at temperatures of 600°C, 700°C, and 800°C. Test result hardness shows that the highest average hardness value is at a temperature of 600°C of 68.6 Hv and the lowest average hardness value is at a temperature of 800°C which is equal to 51.7 Hv
Evaluation of Electrode Deposition and Corrosiveness in HHO Generators: A Comparative Study Between Theoretical Predictions and Experimental Results Bernardus Crisanto Putra Mbulu; Antonius Prisma Jalu Permana; Donysius Dwi Hercahyo
Proceeding of the International Conference on Mathematical Sciences, Natural Sciences, and Computing Vol. 1 No. 1 (2024): June : Proceeding of the International Conference on Mathematical Sciences, Nat
Publisher : Asosiasi Riset Ilmu Matematika dan Sains Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62383/icmsnsc.v1i1.11

Abstract

Abstract: Renewable Energi have been goverment concern in Indonesia since 2014. HHO generator is one of some machine to generate hydrogen fuel using electrolysis process. In this research, the discussion will focus on the comparison between theoretical predictions and experimental results, about the causes of precipitation and corrosion of electrodes made of stainless steel produced from HHO generators, especially when using a mixture of KOH and NaCl electrolytes. The results, show the precipitate produced by the KOH solution is less compared to the NaCl solution. Meanwhile, the chlorine (Cl⁻) content of NaCl which is initially corrosive is not always present because it is formed into Cl₂ in the form of a gas, so the subsequent precipitation and corrosiveness depend on the element hydroxide (OH⁻) from H₂O dissociation.
EXPERIMENTAL STUDY OF PACK CARBURIZING AND QUENCHING PROCESS WITH TEMPERATURE VARIATIONS (700℃, 800℃, AND 900℃) ON THE MICRO-CHARACTERISTICS AND HARDNESS OF STAINLESS STEEL 316L Daniel Angger; Bernardus Crisanto Putra Mbulu; Antonius Prisma Jalu Permana
Mechanical, Energy and Material (METAL) Vol. 3 No. 2 (2025): Desember: Mechanical, Energy and Material (METAL)
Publisher : Universitas Katolik Widya Karya Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59581/metal.v3i2.141

Abstract

His study aims to investigate the effect of temperature variation in pack carburizing and quenching processes on the microstructure and surface hardness of Stainless Steel 316L. The pack carburizing process was conducted using activated carbon derived from robusta coffee grounds at temperatures of 700°C, 800°C, and 900°C with a holding time of 60 minutes. Subsequently, a quenching process was carried out using oil mixed with activated carbon to lock the diffused carbon. The material was tested for mass change, microstructure (via SEM), and surface hardness (using the Vickers method). The results show that increasing temperature significantly affects carbon diffusion and hardness improvement. The highest hardness value was obtained from the quenching process at 900°C with 330 HV, while pack carburizing at the same temperature resulted in 292 HV. The microstructure revealed more dominant Martensitic formation in the quenching process. Therefore, heat treatment with rapid cooling proves to be more effective in enhancing hardness and modifying the microstructure of Stainless Steel 316L.
THE EFFECT OF NACL AND KOH SOLUTION VARIATIONS ON HYDROGEN PRODUCTIVITY AND CORROSIVITY IN WET HHO GENERATORS USING SS316L ELECTRODES Akmal Tri BasunJaya; Bernardus Crisanto Putra Mbulu; Antonius Prisma Jalu Permana
Mechanical, Energy and Material (METAL) Vol. 3 No. 2 (2025): Desember: Mechanical, Energy and Material (METAL)
Publisher : Universitas Katolik Widya Karya Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59581/metal.v3i2.153

Abstract

The increasing energy demand due to population growth and industrial development has driven the search for clean and renewable alternative energy sources. One promising solution is hydrogen-based energy through water electrolysis, which produces HHO gas (a mixture of hydrogen and oxygen).  The efficiency of the electrolysis process is significantly influenced by the type and concentration of the electrolyte solution used, such as NaCl and KOH, as well as the electrode material here, stainless steel SS316L. This study shows that increasing the mass of the electrolyte solution enhances hydrogen production. NaCl with a mass of 153 grams produced 1,509 ppm of hydrogen at the high-variable setting, while KOH with a mass of 147 grams produced up to 2,320 ppm. However, KOH also caused higher corrosion levels, reaching 0.117 grams in the high-variable setup, compared to NaCl at 0.038 grams. The Cl⁻ and OH⁻ ions in the electrolyte are highly reactive and contribute to electrode surface degradation. Furthermore, the electrode position affects hydrogen productivity, where closer proximity to the power source improves reaction efficiency. Therefore, the selection of electrolyte type and the optimization of the electrolysis system configuration are crucial in the development of efficient hydrogen production technology.
Co-Authors Akmal Tri BasunJaya Bernardus Crisanto Putra Mbulu Daniel Angger Dionysius Joseph Djoko HS Donysius Dwi Hercahyo Emilianus Chris Welafubun Masruroh Masruroh Murdiyanto, Danang Redationo, Nereus Tugur Wardhani, Jovita Vicka Bayu