Article Per Year (5 Year)
p-Index From 2020 - 2025
0.444
P-Index
This Author published in this journals
All Journal Journal of Technomaterial Physics
Marlianto, Eddy
Unknown Affiliation
Astronomy Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Earth & Planetary Sciences Electrical & Electronics Engineering Energy Materials Science & Nanotechnology Physics

Published : 2 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 2 Documents
Search

 1 
Efficiency of Ketapang (Terminalia catappa L.) Leaves Tannin Extract as Organic Inhibitor Against Corrosion Rate of Iron Metal in Seawater Marlianto, Eddy
Journal of Technomaterial Physics Vol. 2 No. 1 (2020): Journal of Technomaterial Physics
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jotp.v2i1.5268

Abstract

The research is about effect of immersion time and mechanical properties on the rate of corrosion of ferrous metals by the addition of Ketapang (Terminalia catappa L.) leaf extract as an organic inhibitor in the seawater environment. In this study, ketapang leaf extract was used as a natural inhibitor to inhibit the rate of corrosion of ferrous metals. This inhibitor is used on iron metal plates which are immersed in corrosive media, namely sea water with variations in the composition of the inhibitors used at 0; 10% V; 20% V, and 40% V, with immersion time of 3 and 6 days. The characterizations tested included measurement of density, corrosion rate, inhibitor efficiency, and hardness testing using the Vickers method. From the measurement results, the density value decreases with the addition of the concentration of the inhibitor both on immersion 3 days and 6 days. The value of hardness increases with increasing composition of the inhibitor. The optimum hardness value is 165.03 N/m2 with immersion time of 6 days at an inhibitor concentration of 40% and a minimum hardness value of 145.603 N/m2 on immersion 6 days with no inhibitor. The smallest corrosion rate was obtained by samples with a composition of 40% inhibitor of 2.77 mpy with immersion time of 3 days and 1.33 mpy with immersion time of 6 days. And the efficiency value of Ketapang leaf extract inhibitors reached 47.01 % in the composition of 40% in the seawater environment with immersion time of 6 daysketapang leaves
Effect of Additional Cu on Structural and Optical Properties of TiO2 Synthesized with Sol-Gel Method Sidauruk, Anggi Natasya; Amal, Muhamad Ikhlasul; Marlianto, Eddy
Journal of Technomaterial Physics Vol. 4 No. 1 (2022): Journal of Technomaterial Physics
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jotp.v4i1.7851

Abstract

In this study, TiO2 doped with Cu has been successfully synthesized using the sol-gel method by varying the addition of Cu and the calcination temperature. Sample preparation was started by mixing 0.75 mL of 37% HCl in 49.25 mL of 96% ethanol and stirred with a magnetic stirrer for 10 minutes. Then 10 mL of TTIP (Titanium Tetraisopropoxide) was added dropwise using a dropper and the solution was stirred again with a magnetic stirrer for 60 minutes. Then added Cu with variations of 1%, 2%, 3%, 4%, and 5% and stirred again for 60 minutes using a magnetic stirrer. The sol solution was then put into the furnace at a temperature of 100°C for 3 days. The crystalline sol solution was then mashed with a mortar to a submicron size, then washed with 50 mL of Aquades and stirred using a magnetic stirrer for 10 minutes. The washed samples were then dried in a furnace at a temperature of 100°C for 1 day. Followed by calcination for 3 hours with temperature variations of 450°C, 500°C, 550°C and 600°C to release the gases in the nanoparticles. Cu-doped TiO2 nanoparticles were characterized using test equipment such as XRD, SEM-EDX, and UV-Vis. From the results of XRD analysis obtained 3 phases namely Brookite, Rutile and Anastase, and the crystal size is unstable and the shape of the sample particles is tetragonal. The results of the SEM-EDX analysis showed that the content of the sample was in accordance with the experiments that had been carried out. The results of UV-Vis analysis show that the wavelength is inversely proportional to the bandgap energy.
Co-Authors Amal, Muhamad Ikhlasul Sidauruk, Anggi Natasya