Sulistioso Giat Sukaryo

National Nuclear Energy Agency of Indonesia

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Bambang Sugeng

National Nuclear Energy Agency of Indonesia

B Bandriyana

National Nuclear Energy Agency of Indonesia

Nanda Shabrina

National Nuclear Energy Agency of Indonesia

Rohmad Salam

National Research and Innovation Agency

Abu Khalid Rivai

National Research and Innovation Agency

Mardiyanto Panitra

National Research and Innovation Agency

Ferhat Aziz

National Nuclear Energy Agency of Indonesia

Mohammad Dani

National Research and Innovation Agency

Sudaryanto Sudaryanto

Indonesian Institute of Sciences

Agus Sujatno

National Nuclear Energy Agency of Indonesia

Cooperative Institutions

National Nuclear Energy Agency of Indonesia

National Research and Innovation Agency

IPB University

Indonesian Institute of Sciences

Badan Pengkajian dan Penerapan Teknologi

Nuclear Energy Agency

University of Indonesia

Bandung Institute of Technology

Ministry of Science and Technology Thailand

Mikroelektronika (Czechia)

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SINTESIS PADUAN INTERMETALIK NiAI DENGAN METODE METALURGI SERBUK

Didin S. Winatapura Sulistioso Giat Sukaryo

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Rubber based neutron shielding material simulation using MCNP5

AIP conference proceedings (2021)

Mardiyanto Panitra Ferhat Aziz Abu Khalid Rivai Sulistioso Giat Sukaryo Adel Fisli

Rubber-Based Neutron Shielding Material Simulation using MCNP5. The natural rubber-based neutron radiation shielding was simulated using MCNP5 computer code. The attenuation curves of natural rubber, rubber-neoprene, rubber-silicone, natural rubber+5% Vol. Gd2O2S composite, natural rubber+25% Vol. Borax, natural rubber+ 5% Vol. B4C, natural rubber+5% Vol. Li2O and natural rubber+5% Vol. Gd2O2S composite+Pb layer were made. The half-value layer (HVL) of each shielding was also calculated for both fast and thermal neutron. For the thermal neutron, the smallest HVL was obtained by using a composite of natural rubber+5% Vol. Gd2O2S i.e. 0.23 cm and the biggest was obtained for natural rubber+25% Vol. Borax i.e. 0.92 cm. on the other hand, for fast neutron, the smallest HVL was obtained for the shielding of Natural Rubber+5% Vol Gd2O2S i.e. 0.7 cm and Natural Rubber+25% Vol. Borax i.e. 1.23 cm. Photon was induced when thermal neutrons pass through the shielding of Natural Rubber+5% Vol Gd2O2S due to the (nth,ψ)

Silicone rubber

Borax

10.1063/5.0066597

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Citations (1)

Structure and Properties of Biomaterials

Advanced structured materials (2016)

Sulistioso Giat Sukaryo Agung Purnama Hendra Hermawan

Inert

Hard tissue

10.1007/978-3-319-14845-8_1

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Citations (14)

Molecular analysis on the utilization of oil palm empty fruit bunches fiber as reinforcement for acrylonitrile butadiene styrene biocomposites

IOP Conference Series Earth and Environmental Science (2017)

Bambang Hermawan Siti Nikmatin Husin Alatas Sudaryanto Sudaryanto Sulistioso Giat Sukaryo

Oil palm empty fruit bunches (OPEFB) was one of the solid waste produced by the palm oil factory and were totally plentiful in biomass. OPEFB fiber used as reinforcement of polymer matrix acrylonitrile butadiene styrene (ABS). The use of FTIR is to see that there is no changes in the molecules of the constituent biocomposite ABS and OPEFB. The reactivity of butadiene and styrene through the double bond- π conjugated system, contributed to the bond reaction with the maleic acid as compatibilizer witch is grafted to the system. It is concluded that the posible grafting reaction occurs by the addition of the MAH to the double bond of the butadiene and styrene. The hydroxyl group of cellulose can interact with this maleic acid to form a bond through the carboxyl group.

Maleic anhydride

Compatibilization

10.1088/1755-1315/65/1/012028

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Citations (5)

Surface free energy analysis of oil palm empty fruit bunches fiber reinforced biocomposites

IOP Conference Series Earth and Environmental Science (2017)

Gema Sukmawati Suryadi Siti Nikmatin Sudaryanto Sudaryanto Irmansyah Sulistioso Giat Sukaryo

Study of the size effect of natural fiber from oil palm empty fruit bunches (OPEFB) as filler, onto the contact angle and surface free energy of fiber reinforced biocomposites has been done. The OPEFB fibers were prepared by mechanical milling and sieving to obtain various sizes of fiber (long-fiber, medium-fiber, short-fiber, and microparticle). The biocomposites has been produced by extrusion using single-screw extruder with EFB fiber as filler, recycled Acrylonitrile Butadiene Styrene (ABS) polymer as matrix, and primary antioxidant, acid scavanger, and coupling agent as additives. The obtained biocomposites in form of granular, were made into test piece by injection molding method. Contact angles of water, methanol, and hexane on the surface of biocomposites at room temperature were measured using Phoenix 300 Contact Angle Analyzer. The surface free energy (SFE) and their components were calculated using three previous known methods (Girifalco-Good-Fowkes-Young (GGFY), Owens-Wendt, and van Oss-Chaudhury-Good (vOCG)). The results showed that total SFE of Recycled ABS as control was about 24.38 mJ/m2, and SFE of biocomposites was lower than control, decreased with decreasing of EFB fiber size as biocomposites filler. The statistical analysis proved that there are no statistically significant differences in the value of the SFE calculated with the three different methods.

Biocomposite

Acrylonitrile butadiene styrene

Natural fiber

Molding (decorative)

10.1088/1755-1315/65/1/012044

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Citations (11)

Hardness and corrosion rate of cocrmo

Mohammad Nur Indro H. Wiranata Sulistioso Giat Sukaryo

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Enhancing Thermal and Mechanical Properties of UHMWPE/HA Composite as Tibial Tray

Indonesian Journal of Chemistry (2020)

Yusuf Bramastya Apriliyanto Sri Sugiarti Sulistioso Giat Sukaryo

A bearing material in an artificial knee joint has to have good thermal and mechanical properties to prevent wear in order to be used as a tibial tray. Despite its well-known good properties, ultrahigh molecular weight polyethylene (UHMWPE) still needs to be modified to enhance its physical strength in its use in artificial joints. In this research, composites made from UHMWPE and hydroxyapatite (HA) were prepared by mechanical alloying and hot press method and their thermal and mechanical properties were modified using gamma rays. The composites were prepared using various HA loading ratios and irradiated using gamma rays at doses of 0, 25, 50, and 75 kGy. The effects of HA loading and gamma irradiation on thermal and mechanical properties were studied by various methods. The results showed that the addition of HA enhanced the hardness of UHMWPE by 8–15% and the maximum stress up to 38%. Gamma irradiation enhanced the crystallinity by 113–172%, the melting point by 0.6–0.7%, and decreased the break elongation of composites by 23–48%. Addition of polyvinyl alcohol (5% w/w) in composites reduced their rigidity by 16–47% and hardness by 3–9%.

Tray

Elongation

Polyvinyl Alcohol

10.22146/ijc.44086

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Citations (2)

Hidroxyapatite Coating on CoCrMo Alloy Titanium Nitride Coated Using Biomimetic Method

Journal of Physics Conference Series (2016)

Charlena Sulistioso Giat Sukaryo Muhammad Fajar

Bone implants is a way to cure broken bones which is being developed. The implants can be made of metals, ceramics and polymers. Metallic materials commonly used are titanium (Ti), stainless steel, and metal alloys. This study used Co-based alloys, i.e. CoCrMo coated with titanium nitride (TiN) which was then coated on hidroxyapatite (HAp). The HAp coating on the surface of CoCrMo alloy was done by biomimetic methods, first by soaking the metal alloys in simulated body fluid (SBF) solution for 18, 24, and 36 hours. The immersion in the SBF solution produced white coat on the surface of the metal alloy. The layers formed were analyzed by scanning electron microscope (SEM) and characterized by x-ray diffractometer (XRD). Based on the SEM results of 36 hours treatment, the morphology of apatite crystal formed fine grains. According to XRD result, there were HAp peaks at angles 2θ 31.86, 32.25, dan 39.48. However, there were also CaCO3 peaks at angles 2θ 29.46, 36.04, and 46.79. It indicated the pure HAp is not yet formed.

Diffractometer

Simulated body fluid

Titanium alloy

10.1088/1742-6596/776/1/012056

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Citations (3)

Effect of oil palm empty fruit bunches fibers reinforced polymer recycled

IOP Conference Series Materials Science and Engineering (2017)

Bambang Hermawan Siti Nikmatin Sudaryanto Sudaryanto Husin Alatas Sulistioso Giat Sukaryo

The aim of this research is to process the OPEFB to become fiber with various sizes which will be used as a filler of polymer matrix recycled acrylonitrile butadiene styrene (ABS). Molecular analysis and mechanical test have been done to understand the influence of fiber size toward material capability to receive outer deformation. Single screw extruder formed a biocomposites granular continued with injection moulding to shaped test pieces. Maleic anhydride was added as coupling agent between filler and matrix. Filler concentration were 10 and 20% in fiber size respectively with constant additif. Two kind of fiber glass (10%) were used as comparator. In order to analyze the results of the mechanical test Fisher least significant difference (LSD) in ANOVA method was performed (-with α=0,05-).

Maleic anhydride

Filler (materials)

Acrylonitrile butadiene styrene

10.1088/1757-899x/223/1/012064

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Synthesis and characterization of nanoparticle magnetite for biomedical application

AIP conference proceedings (2019)

Reny Kusuma Wardani Kiagus Dahlan Setyanto Tri Wahyudi Sulistioso Giat Sukaryo

Nanoparticles (NP) have been studied because of their unique physical and chemical properties compared with their bulk counterparts. The ferrite colloids, magnetite (Fe3O4) are the main representatives of the magnetic nanoparticles (MNPs). These ferrite colloids are characterized by a spinel crystal structure with oxygen ions forming a close-packed cubic lattice and iron ions located at the interstices. Fe3O4 has been attracting in biomedical applications due to their biocompatibility and their biodegradability. In this research, Fe3O4 nanoparticles has been successfully synthetized by using coprecipitation method by using Natrium hydroxide (NaOH) as precipitant agent, Ferrous Chloride Tetrahydrate (FeCl2.4H2O) and Ferric Chloride Anhydrous (FeCl3.6H2O) were used as precursor. Fe3O4 were characterized with X-Ray Diffraction (XRD), Vibrating Sample Magnetometer (VSM), and Particle Size Analysis (PSA). The results of synthesized Fe3O4 shown that the crystallite size 7.664 nm and the XRD pattern was match with the reference magnetite Fe3O4 pattern (JCPDS card number 19-0629). From PSA measurement, it shown that the average particles size was 228.9 nm with Polidispersity Index (PdI) 0.402 and the magnetic saturation value 80 emu/gram.

Coprecipitation

Tetrahydrate

10.1063/1.5139869

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Citations (19)