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INDONESIA
Jurnal Sains Materi Indonesia
Published by BRIN Publishing
ISSN : 14111098     EISSN : 2614087X     DOI : https://doi.org/10.55981/jsmi
Core Subject : Science, Engineering,
Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology
Jurnal Sains Materi Indonesia (Indonesian Journal of Materials Science, JUSAMI) is an international peer-reviewed journal that publishes significant and important research from all areas of materials science and engineering. The topics discussed in JUSAMI are research & development results in materials science and engineering, technological innovations and applications in industry based on materials such as polymers, ceramics, composites, metals, noble metals, metal alloys, oxides, or carbon, which are related to mechanical, magnetic, physical, optical, dielectric or electronic properties (superconductivity, semiconductivity, superionic conductivity, etc.) with discussion including synthesis, modification and development of methods; testing and characterization; simulation and modeling; nuclear engineering and its applications in materials science, etc.
Arjuna Subject : Ilmu Material (semua kategori) - Ilmu Material (Lain-Lain)
Articles 94 Documents
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Adsorption of Phenol and Iron In Wastewater Using a Mixture of Active Carbon and Zeolite Modified with Chitosan Ratnawati; Rian Hidayat; M. Cece Ariwirdana; Kudrat Sunandar; Wahyudin Wahyudin
Jurnal Sains Materi Indonesia Vol. 24 No. 1 (2022)
Publisher : BRIN Publishing (Penerbit BRIN)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17146/jsmi.2022.24.1.6691

Abstract

Phenol (C6H5OH) and iron (Fe2+) contained in electroplating industrial wastewater are toxic even at small concentrations. One of the effective methods to remove these compounds is adsorption because the method is easy and simple. Activated carbon and zeolite are types of adsorbents that are often used in wastewater treatment, but both types of adsorbents are not selective in certain chemicals. In this study, modification of zeolite and activated carbon with chitosan was carried out to adsorb waste containing phenol and Fe2+. The variations used were pH (7 and 9) and the adsorbent composition to study its effect on the adsorption of phenol in the presence of Fe2+. Adsorption was carried out in a bed with circulating waste for 2 hours. Feed at pH 9 with adsorbent mixed of zeolite-chitosan composite (Z-Ch) and activated carbon-chitosan composite (AC-Ch) in a ratio of 1:1 gave the optimal results. Under these conditions, 94% and 97% of phenol and Fe2+ were adsorbed, respectively.
THE KINETICS OF PRECIPITATE COARSENING IN ZIRCALOY-2 Harini; Sungkono Sungkono
Jurnal Sains Materi Indonesia Vol. 1 No. 2 (2000): Jurnal Sains dan Materi Indonesia
Publisher : BRIN Publishing (Penerbit BRIN)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17146/jusami.2000.1.2.5320

Abstract

Zircaloy-2 has been used as fuel element cladding material in both light and heavy water power reactors. The aims of the experiment are to study the kinetics of precipitate coarsening during isothermal a-annealing and to characterize the nucleation and growth of precipitate affected by the variations of cold work and heat treatment. The results of the experiment show that all specimens annealed at 650°C have the average precipitate diameter less than 0.1 um whereas those at 750°C have the average size larger than 0.1 .tm except for one annealed for less than 5 hours. The average size of precipitates is 0.07 um for specimens deformed before 0-quenching and 0.168 .tm for specimens deformed after 0-quenching. The deformed specimens after 13-quenching have more homogeneous size distribution than that of undeformed specimens and specimens deformed before 0-quenching. The kinetics of precipitate coarsening depends on the changes in annealing temperature and time, and cooling rate from the 0-phase region. The nucleation and growth of precipitates have been influenced by the variations of cold work and heat treatment.
Influence of Hydrothermal Temperature on the Physical Characteristics and Photocatalytics Activity of TiO2 for Degradation of Amoxicillin Sutisna, Sutisna; Maulana, Rija Rizqi; Maulina, Wenny; Sujito, Sujito; Berlianti, Nindha Ayu; Wibowo, Edy
Jurnal Sains Materi Indonesia Vol. 26 No. 1 (2024): Jurnal Sains dan Materi Indonesia
Publisher : BRIN Publishing (Penerbit BRIN)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55981/jsmi.2024.2051

Abstract

Titanium dioxide (TiO2) is a photocatalyst material widely used for environmental remediation applications. In this research, TiO2 material was synthesized using the hydrothermal method at various temperatures (150°C, 180°C, and 200°C). Based on the Fourier-transform infrared (FTIR) data, it was found that all the synthesized materials showed similar absorption peaks, and Ti-O-Ti bonds were detected, which is a characteristic of TiO2. X-ray diffraction (XRD) analysis showed that all the synthesized materials were TiO2 anatase with different crystalline sizes. The synthesized TiO2 using the hydrothermal temperature of 180°C showed the smallest crystalline size of 86.81 nm. Based on the analysis of the band gap energy, it was found that wider band gap energy was obtained at higher hydrothermal temperatures. The band gap energies of the synthesized materials are 3.18 eV, 3.19 eV, and 3.21 eV for hydrothermal temperatures of 150°C, 180°C, and 200°C, respectively. The photocatalytic activity of the three synthesized materials was tested in the photodegradation experiment of amoxicillin under ultraviolet (UV) irradiation. As a result, it was found that TiO2 synthesized at 180°C has the highest photocatalytic activity by degrading 100% of amoxicillin compounds within 120 minutes.
Corrosion Resistant Support Materials (CRSM) as Potential Development of Technical Parameters for Biocompatibility Testing of Bone Implant Products: A Review Purwanto, Endi Hari; Lukiawan, Reza; Louhenapessy, Bendjamin Benny; Basuki, Budhy; Anggraeni, Putty; Darmayanti, Nur Tjahyo Eka
Jurnal Sains Materi Indonesia Vol. 26 No. 1 (2024): Jurnal Sains dan Materi Indonesia
Publisher : BRIN Publishing (Penerbit BRIN)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55981/jsmi.2024.3130

Abstract

This study aims to describe the risk of bone implant material 316L-SS by identifying the material or materials or methods that are able to withstand the rate of corrosion or anti-corrosion. The method used is a literature study supported by tabulation data processing instruments, mind mapping, and fishbone diagrams. All journal literature is collected, grouped, carefully identified and scored to obtain information regarding its anti-corrosive material. The results show that corrosion of 316L can be coated with an anti-corrosive support material  as follows: 1) Alumina Sol-Gel, 2) Silane, 3) Parylene, 4) Niobium Oxide (Nb2O5), 5) 0.01%SS, 6) MgO/Tb,Eu-HAP, 7) Ti6Al4V coated HAP 40 micrometers, 8) HAP+HNO3, 9) Nano-HA, 10) Samarium- Gadolinium-HAP (Sm/Gd-HAP), 11) Nano-Thin Film Hydroxyapatite polylactic acid (nHA-PLA), 12) Multiwall Carbon Nanotube, 13) f-MWCNT, 14) Ag-HA/f-MWCNT nanocomposite, 15) nano HAP, 16) nano TiO2, 17) Double-HA, 18 ) Titanium ions, 19) Superhydrophilic TNT, 20) Superhydrophobic TNT, and 21) Ti-Nb-Zr-Ta6. Each element that coats 316L-SS has different characteristics of advantages, but unfortunately all existing literature does not explain the technical advantages of each type of CRSM. The advantages are explained by comparing the coating elements with one another.
The Significant Process Variable of Tea Powder Production Based On Spray Dry Method Fitriady, Muhammad Arifuddin; Rohmah, Alfissyahriyah Nur; RINALDI, NINO; Agustian; SULASWATTY, ANNY; Shabri, Shabri
Jurnal Sains Materi Indonesia Vol. 26 No. 1 (2024): Jurnal Sains dan Materi Indonesia
Publisher : BRIN Publishing (Penerbit BRIN)

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

Abstract

Polyphenol, which is very beneficial to the human body, especially as an obesity inhibitor, is one of the leading nutrient content in green tea leaves. To increase popularity as well as practicability, product development needs to be conducted, one of which is to produce an effervescent instant tea. However, a high-density instant tea powder is required in this product development. This study was conducted to predict the significant process variables which affect the density as well as the yield of the instant tea powder. The exploration of significant process variables was conducted based on the Design of the Experiment, while the tea extract was produced using maceration techniques. Maltodextrin was added to the tea extract based on the concentration filler variable. The instant tea powder was produced by the spray drying method, which variable includes the concentration of maltodextrin (filler), the pump flow rate (feed pump), the outlet temperature (Tout), the fan speed, and the atomization air pressure (nozzle). The tapped density of the instant tea powder was analysed and the yield was calculated for each condition. Based on the Pareto graph, it was found that the atomization air pressure (nozzle) is the most significant variable in the spray dry process of instant tea powder.
Energy Analysis and Economy Performance of a Hybrid Solar Dryer for Drying Coffee Suherman, Suherman; Hadiyanto, Hadiyanto; Franz, Nicholas; Kamandjaja, Vimala; Sinuhaji, Tubagus Rayyan Fitra
Jurnal Sains Materi Indonesia Vol. 26 No. 1 (2024): Jurnal Sains dan Materi Indonesia
Publisher : BRIN Publishing (Penerbit BRIN)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55981/jsmi.2024.3135

Abstract

This work studies the effect of the drying temperature on the profile of the water content, drying rate, drying efficiency, economic performance, and the quality of Robusta and Arabica coffee beans using the hybrid solar dryer. The drying instrument with the help of LPG heating is used in this research with a specified temperature of 40 ℃, 50 ℃, and 60 ℃. The research is conducted on a sunny day for 1 day for each temperature and coffee beans. The temperature profile shows that the lowest water content in the study is 60 ℃. The drying rate for both 50 ℃ and 60 ℃ are similar and the highest average efficiency of the instrument is at 50 ℃ for both Robusta and Arabica beans. The dominant peak in GCMS analysis result of coffee samples was caffeine with a total area percentage of 30.89%, the description of the coffee bean structure using SEM test resulted in a hole size of 5-10 µm, the obtained fat content was 1.6%, the obtained protein content 17.3%. A hybrid solar dryer is an environmentally friendly solution that enables faster coffee drying, with a payback period of 1.5 years for both coffee bean types.
An Enhanced Nickel Recovery from Mixed Hydroxide Precipitate Through Selective Leaching with KMnO4 Oxidant Gumelar, Muhammad Dikdik; Rahayu; Saputra; Agustanhakri; Husin; Andrameda; Taqwatomo; Putra; Indrijarso; Saudi; Indriasari; Arfiana; Yuliani; Mumtaz; Mirahati
Jurnal Sains Materi Indonesia Vol. 26 No. 1 (2024): Jurnal Sains dan Materi Indonesia
Publisher : BRIN Publishing (Penerbit BRIN)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55981/jsmi.2024.3136

Abstract

Mixed Hydroxide Precipitate (MHP), a metal precipitate with the dominant nickel and cobalt content in hydroxide compounds, can be leached as a lithium battery precursor. In this study, KMnO4 was used as an oxidant agent to increase the solubility of Ni and Co. The variation of the sulfuric acid concentration (0.5 - 1.5 M) as a leachate reagent, the concentration of KMnO4 (2.5 - 7.5 g/L), and the selective leaching temperature (60 - 80°C) were investigated. Solvent extraction using CYANEX 272 and D2EHPA was performed to separate the Ni, Co, and Mn. Atomic Absorption Spectrometry (AAS), Inductively coupled plasma mass (ICP-OES), and X-ray Fluorescence (XRF) were used to analyze the chemical compositions. At the same time, crystallographic analysis was observed with X-Ray Diffraction. It was observed that potassium permanganate increased the dissolution of Ni and Co to 91.3% and 85.4% but decreased the dissolution of Mn (37.53%) under the following conditions: 1.75 M sulfuric acid, 7.5 g/L potassium permanganate, and 60°C temperature. High purity of nickel crystal (99.64%) was observed with spontaneous nucleation due to the supersaturated nickel solution after solvent extraction with CYANEX 272. Thus, using permanganate ion as selective leaching of Ni and Co from Mn is promising.
Simulation Of Mechanical Stress On A Solution-Annealed 15-15Ti Steel Using ABAQUS CAE Program Oktavianto, Putra; Purwaningsih, Anik; Setiawan, Muksin Aji; Handayani, Airin Hijrah; Mustari, Asril Pramutadi Andi; Waris, Abdul
Jurnal Sains Materi Indonesia Vol. 26 No. 1 (2024): Jurnal Sains dan Materi Indonesia
Publisher : BRIN Publishing (Penerbit BRIN)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55981/jsmi.2024.3800

Abstract

In addressing the problem of Ti steel (15-15Ti) proposed as the main candidate material for the manufacture of coatings and fuel wrappers for liquid LBE-cooled fast reactors at high temperatures related to material degradation, such as liquid metal embrittlement (LME) and liquid metal corrosion (LMC), Gong et al. conducted research related to the creep failure behavior of solution-annealed 15-15Ti steel exposed to LBE at temperatures of 550 and 600oC using a creep test facility. However, in this study, testing the mechanical properties of 15-15Ti steel through tensile testing was not really discussed, even though the mechanical properties of a material are one of the most important things in determining structural design. The mechanical properties obtained from previous research were then simulated using ABAQUS CAE software to determine the stress distribution profile (initial and final) and the mechanical stress-strain performance used to understand more about the 15–15Ti material. From the simulation results, it was found that the peak force received by the specimen for a strain rate of 1.1 x 10-5s-1 was 6.0 kN, while for a strain rate of 5 x 10-5s-1, it was 6.2 kN. This means that the specimen used cannot accept a force greater than the peak force value. A stress-strain difference graph was also obtained in the experimental results, with simulation results showing a decrease in the value of the fracture point. This is because the mesh setting in the simulation is not close to a more detailed value.
Simple Synthesis of 4A Zeolite with the Addition of Al2O3 and Na2EDTA Compounds Dawolo, Januari; Telaumbanua, Putra Hidayat; O. Laia; N. K. Lase
Jurnal Sains Materi Indonesia Vol. 26 No. 2 (2025): Jurnal Sains dan Materi Indonesia
Publisher : BRIN Publishing (Penerbit BRIN)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55981/jsmi.2025.4302

Abstract

4A zeolite complex derived from coal has been successfully synthesized through the preparation of fractionated samples, analyzed using atomic absorption spectrophotometry (AAS), resulting in a chemical composition of silica (SiO2) 24.78% and aluminum oxide (Al2O3) 29.60%. The fly ash produced from this fractionation is used as the base material for the synthesis of 4A zeolite. The fly ash is reacted with sodium hydroxide (NaOH) at room temperature, yielding a gel that is subsequently crystallized into 4A zeolite through a reflux process. The resulting zeolite crystals are then supplemented with Al2O3 and disodium dihydrogen ethylenediaminetetraacetate (Na2EDTA) as sources of aluminum to achieve a molar ratio of Si/Al = 1.42. Optimal quality 4A zeolite crystals were obtained from the synthesis of 5.9351 g of medium fraction fly ash, along with 1 g Al2O3, 4 g NaOH, and 0.569 g Na2EDTA. Infrared (IR) characterization results indicate that the optimal 4A zeolite from medium fraction fly ash is characterized by crystals with the addition of 1.5 g of Al2O3. Wide absorption bandwidths are typically caused by large spectral line widths, which can occur if a significant amount of energy is absorbed by various vibrational modes, assuming that excess Al2O3 leads to the formation of functional groups that contribute to the same band. A peak at a wavelength of 564 cm-1 indicates double ring stretching vibrations, while a peak at 661 cm-1 indicates symmetric stretching vibrations of the zeolite framework. Meanwhile, peaks at wavelengths of 3460.86 cm-1 and 974.71 cm-1 indicate detected O-H absorption
Electrochemical Investigation of Ethylene Glycol as Corrosion Inhibitor of Al 5052 Habibi; Nikitasari, Arini; Saifudin; Kusumastuti; Musabikha; Prifiharni; Irawan; Priyotomo; Riastuti
Jurnal Sains Materi Indonesia Vol. 26 No. 1 (2024): Jurnal Sains dan Materi Indonesia
Publisher : BRIN Publishing (Penerbit BRIN)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55981/jsmi.2024.4398

Abstract

Nowadays, electric cars use Al 5052 in the cooling pad of the battery coolant system. Corrosion behavior study of Al 5052 by coolant is essential in the automotive industry. Ethylene glycol is the main compound of the battery coolant system that can inhibit the corrosion process of aluminum alloys. The corrosion inhibition performance of ethylene glycol (EG) for Al 5052 surface in 3.5% NaCl solution has been studied using electrochemical measurements such as potentiodynamic polarization and electrochemical impedance spectroscopy (EIS) in various concentrations of EG up to 50% and a temperature range from 30oC to 60oC. Based on results, EG can inhibit the corrosion process of Al 5052. The corrosion rate (CR) of coolant containing EG decreases with increasing that concentration in various temperatures, and the CR of the coolant rises with the increased temperatures. The inhibition efficiency of coolant boosts with the increase in EG concentration in each operational temperature and the highest up to 75% at 60oC with 50% of EG concentration.

Page 6 of 10 | Total Record : 94

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