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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 125 Documents
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Simulation Of Mechanical Stress On A Solution-Annealed 15-15Ti Steel Using ABAQUS CAE Program Putra Oktavianto; Anik Purwaningsih; Muksin Aji Setiawan; Airin Hijrah Handayani; Asril Pramutadi Andi Mustari; Abdul Waris
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.
Electrochemical Investigation of Ethylene Glycol as Corrosion Inhibitor of Al 5052 Habibi; Arini Nikitasari; 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.
Effect of Basalt Size and Composition on Mechanical Properties of Wood Powder Polymer Biocomposite Material and Basalt as Reinforcement Singgih Prabowo; Astuti; Birawidha; Amin; Bahfie; Dwi Yanti; Savitri; Karo Karo; Irwanto
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.2024.4568

Abstract

Utilization of waste for raw materials for new materials is very potential for research. Wood waste from door and window craftsmen is widely available as the property business develops. Wood waste mixed with polyester resin is modified by adding basalt to produce a biocomposite material with better mechanical properties. This research on the effect of adding the composition and size of basalt to the wood-polyester biocomposite material was studied to see changes in hardness values according to the ASTM E384 standard, compressive strength according to ASTM D695 standard, and its effect on density according to ASTM D1622 standard. The results showed that the higher the composition and the smaller the basalt hardness value, the compressive strength and density increased. The highest values of hardness, compressive strength and density were 36.6 HV0.5, 151.14 MPa, and 0.1420 kg/m3, an increase compared to that without the addition of basalt 26.7 HV0.5, 95.97 MPa, and 0.1288 kg/m3. Changes in the properties of hardness, compressive strength and density are taken into consideration in the formulation of using basalt to obtain new materials according to the desired specifications by utilizing wood waste.
The Impact of Waste Marble Powder as A Partial Alternative Material for Cement Agustina Sus Andreani; Henda V. R. Taopan; Frengky Seki Banunaek; Farrah Nurkhaliza
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.2024.4569

Abstract

Waste marble powder generated from the sawing and the mining activity of marble stone caused environmental problems that harmed human health. This current research aimed to investigate the influence of waste marble powder to substitute cement partially in mortar production. The mortar preparation with the mixture compositions of 0-50% marble powder was investigated for their resistance of compression and their porosity. The characterization was assessed with X-ray Fluorescence (XRF), Scanning Electron Microscopy-Energy Dispersive X-ray (SEM-EDX), Fourier Transform Infra-Red (FTIR), and X-ray Diffraction (XRD). The finding of this research revealed that a replacement by up to 10% marble powder obtained an increase in compressive strength after 28 days. A low level of marble powder to replace cement led to a less porous microstructure of the mortars. These confirmed that waste marble powder could be applied to manufacture mortars. In addition, the utilization of waste marble powder as an alternative building material would reduce the damage to the environment.
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)

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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.
Effect of Thermomechanical Treatment Combination on Electrochemical Behavior of Nickel Free-Stainless Steel Fe-10Mn-16Cr-3Mo M. Rohmah; F.M. Ridlo; D Irawan; R Roberto; P. A. Paristiawan
Jurnal Sains Materi Indonesia Vol. 24 No. 1 (2022)
Publisher : BRIN Publishing (Penerbit BRIN)

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Abstract

Nickel-free stainless steel has emerged as an implant due to its excellent mechanical and corrosion properties. The toxic effect of Nickel ion released in the conventional SS316L need to be addressed. As one of austenitizing elements used as Nickel substitution, Nitrogen is an important alloying element to improve the strength and resistance to pitting susceptibility. In this research, the Nickel-free Fe-10Mn-16Cr-3Mo stainless steel has been developed. The effect of thermomechanical treatment consists of hot forging, hot rolling, cold rolling, and their combination followed by solution treatment on the electrochemical properties was further investigated. The corrosion resistance of Fe-10Mn-16Cr-3Mo was evaluated by the EIS and polarization test in Hank’s solution at 37℃. A ferrite-austenite duplex structure was identified by microstructural investigation, with indistinct intermetallic phase at homogenized sample. Meanwhile, fully recrystallized grains and twinning structures were formed at thermomechanical samples, indicating in dynamic recovery and dynamic recrystallization. Furthermore, the potentiodynamic parameters demonstrates the protective oxide in all samples. However, sample #5 shows a lower current density, around 0.184 µA/cm2, compared to other samples, indicating more protective passive film. In addition, the corrosion potential of sample #5, around 198 mV leading to higher corrosion resistance up to 0.02894 mmpy.
Influence of Applied Potential on The Structural and Optical Properties of Cu2O Thin Films Grown by Electrochemical Deposition A Maddu; V Lestari; M N Indro
Jurnal Sains Materi Indonesia Vol. 24 No. 1 (2022)
Publisher : BRIN Publishing (Penerbit BRIN)

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Abstract

Cu2O thin films have been deposited on indium-tin-oxide (ITO) coated glass substrate by electrochemical method or electrodeposition. The effect of deposition potential on the microstructure and optical properties of Cu2O thin films was studied. Electrodeposition for two Cu2O thin films was carried out at –0.5V and –0.6V relative to the standard calomel electrode (SCE) as a reference electrode. Cu2O thin films were characterized by X-ray diffraction (XRD), scanning electron microscope (SEM), and UV-Visible spectroscopy. The diffraction pattern indicated the cubic structure of the Cu2O crystal has been well grown. The lattice parameters of Cu2O films slightly increased as the potential of electrodeposition increased. The crystallite size of Cu2O films significantly increased as the applied potential increased. Cu2O thin films showed a smooth and flat surface morphology based on SEM images. The optical transmittance of the Cu2O thin films drastically decreased as the applied potential increased due to the film thickness increasing. The bandgap energy of Cu2O films based on the Tauc plot increased as the applied potential increased, that is 2.0 eV for the film deposited at -0.5V and 2.13 eV deposited at -0.6V.
Influence of Glucose, Urea and Bacteria Concentration On Nata De Cassava Preparation Using Liquid Tapioca Waste Medium M. Ghozali; Y Meliana; W K Restu; E Triwulandar; M Chalid
Jurnal Sains Materi Indonesia Vol. 24 No. 1 (2022)
Publisher : BRIN Publishing (Penerbit BRIN)

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Abstract

In this research, Nata de Cassava as the obtained bacterial cellulose was synthesized by Acetobacter xylinum using the liquid tapioca waste as the media. This research aimed to investigate the influence of concentration from carbon and nitrogen sources and then the type of bacteria used toward the obtained Nata de Cassava. The liquid tapioca waste was heated in a beaker glass at 70-80 °C and then added 5-10 % (w/v) of sugar and 0.1-0.5 % (w/v) of urea. The mixed solution was poured into a container and then cooled. Furthermore, 10-20 % (v/v) of Acetobacter xylinum was added and incubated at room temperature. After ten days, the Nata de cassava was harvested, sterilized, and immersed in ethanol, then dried in an oven at 60 °C. The results of FTIR, XRD and SEM analysis showed that Nata de Cassava had been successfully synthesized. The composition that produced the highest Nata de Cassava yield of 2.41% was the composition using 15% of A. xylinum, 10% of glucose and 0.1% of urea in the fermentation medium. In addition, the composition that produced the highest carbon conversion ratio of 26.15% was the composition that used 10% of A. xylinum, 5% of glucose and 0.2% of urea in the fermentation medium.
Sensing Properties of ZnO-SWCNT Hybrid Nanostructure Coated on Flexible Substrate for CO2 Gas Detection Aisyah Nur Estri; Riyani Tri Yulianti; Qonitatul Hidayah; Surip Kartolo; Rike Yudianti
Jurnal Sains Materi Indonesia Vol. 24 No. 1 (2022)
Publisher : BRIN Publishing (Penerbit BRIN)

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Abstract

We report sensing properties of functionalized single walled carbon nanotubes (f-SWCNTs) deposited on the flexible substrate of silicon (Si) and polyethylene tereptaphalate (PET). Deposition of f-SWCNT on Si rubber and PET surface was conducted by applying different manner of spray coating and dip coating techniques, respectively. Surface modification of f-SWCNT by ZnO nanostructure layer were applied by hydrothermal process.The research study were conducted to know the effect of substrate material and ZnO structure on the f-SWCNT surface which embedded in those flexible polymer substrates. The results reveal that f-SWCNT on Si substrate (f-SWCNT/Si) do not have a good response in gas sensing performance. In meanwhile f-SWCNT on PET substrates (f-SWCNT/PET) is more sensitive about 1.6% with 3s in response. ZnO structure layer modifying the surface structure of f-SWCNT enhance the sensitivity and responsiveness of the sensor with sensitivity of 4.1 % in 2s response after CO2 injection. Effect of bending treatment of the sensor and its stability were further investigated. Morphological surface of f-SWCNT network and crystal structure of ZnO and f-SWCNT were also observed by scanning electron microscope (SEM) and X-ray diffraction, respectively
The Effect of Conventional and Sonochemical Synthesis Methods on Gd2O3 Nanoparticles Properties Muflikhah; W Z Lubis; Mujamilah; M Azizah; R P Caesariyant
Jurnal Sains Materi Indonesia Vol. 24 No. 1 (2022)
Publisher : BRIN Publishing (Penerbit BRIN)

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Abstract

Paramagnetic Gd2O3 nanoparticles have been widely used as a contrast agent in bioimaging such as Magnetic Resonance Imaging (MRI). In this study, Gd2O3 nanoparticles were prepared using conventional and sonochemically precipitation methods, without any stabilizers. Gadolinium nitrate was used as a precursor and ammonium hydroxide as precipitating agent. The synthesized Gd2O3 nanoparticles were characterized using X-Ray Diffractometer (XRD), Particle Size Analyzer (PSA), Scanning Electron Microscope (SEM), and Vibrating Sample Magnetometer (VSM). It was found that Gd2O3 nanoparticles obtained in both methods have a cubic phase. The saturation magnetization (Ms) values of conventional and sonochemical samples were 1.63 emu/g and 1.44 emu/g respectively. The morphology of both samples shows agglomerated spherical shape in the nanometer range. The nanoparticles size of Gd2O3 that was confirmed by the Dynamic Light Scattering technique show samples from the sonochemical method has narrower size distribution (higher homogeneity) compare to samples from the conventional method. It was also found that the sonochemical synthesis technique is faster (time-saving), simple, convenient, and environmentally benign.

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