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Afiefudin, Mohamad
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Aerospace Engineering Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Control & Systems Engineering Electrical & Electronics Engineering Energy Materials Science & Nanotechnology Mechanical Engineering

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Fabrication and Characterization of Asbestos Free Brake Pads Composite using Elaeocarpus Ganitrus as Reinforcement Afiefudin, Mohamad; Widodo, Rahmat Doni; Rusiyanto, Rusiyanto
Automotive Experiences Vol 6 No 2 (2023)
Publisher : Automotive Laboratory of Universitas Muhammadiyah Magelang in collaboration with Association of Indonesian Vocational Educators (AIVE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31603/ae.9367

Abstract

To minimize potential health hazards, there is awareness to avoid asbestos fibers in brake pads. Therefore, this study aims to produce composite brake pads using Elaeocarpus ganitrus seed powder as a substitute for asbestos. The composition of Elaeocarpus ganitrus seed powder was varied from 8%, 10%, and 12% by weight. The properties of the brake pads, including their morphology, physical characteristics, mechanical performance, and wear behavior, were thoroughly investigated and analyzed. The experimental results showed a positive correlation between the addition of 12% by weight of Elaeocarpus ganitrus and the increase in the density and hardness of the resulting sample. In addition, wear resistance increases with increasing percentage of Elaeocarpus ganitrus. Samples containing 12% by weight of Elaeocarpus ganitrus seed powder gave better properties compared to other composite samples. The research findings indicate that Elaeocarpus ganitrus particles can be an alternative to asbestos in the manufacture of brake pads.
ENHANCED IONIC CONDUCTIVITY OF LAYERED-MNO2 ACCOMPANIED MORPHOLOGY EVOLUTION FOR AQUEOUS ZINC-ION BATTERY Afiefudin, Mohamad; Setiawan, Asep Ridwan
Mesin Vol 30 No 1 (2024)
Publisher : Faculty of Mechanical and Aerospace Engineering

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5614/MESIN.2024.30.1.4

Abstract

Enhancing ionic conductivity is crucial for improving the performance of cathode materials in zinc-ion battery applications. In this study, nanoscale manipulation with nickel intercalation into the layered-MnO2 cathode structure was achieved through a hydrothermal reaction at 160°C for 10 hours. The results of Ni-layered-MnO2 synthesis showed a distinctive peak of layered-MnO2 cathode, as indicated by XRD results, and increased conductivity; its ionic conductivity was analyzed through electrochemical impedance spectroscopy (EIS), enabling rapid diffusion of Zn2+ ions and electron transfer. The distinctive morphology and structure of Ni-doped layered-MnO2 through scanning electron microscope (SEM) contribute to enhanced ionic conductivity and facilitate ion transportation, positioning it as a promising cathode material for aqueous zinc-ion battery applications.
Co-Authors Rusiyanto Rusiyanto, Rusiyanto Setiawan, Asep Ridwan