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All Journal Jurnal Rekayasa Material, Manufaktur & Energi Indonesian Journal of Chemical Studies (Indones. J. Chem. Stud.)
Pratita, Elda
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Aerospace Engineering Chemistry Control & Systems Engineering Electrical & Electronics Engineering Energy Engineering

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Drone Berbahan Komposit Serat Rami Dengan Karbon Aktif-Barium M-Heksaferit Sebagai Radar Absorbing Material Aritonang, Sovian; Hijrianisa, Alya; Pratita, Elda; Ningrum, Hanifa Setya; Pangestu, Bintang Brilliant
Rekayasa Material, Manufaktur dan Energi Vol 7, No 1: Januari 2024
Publisher : Fakultas Teknik UMSU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30596/rmme.v7i1.17283

Abstract

Radar is a crucial tool in military applications for detecting enemy objects in its vicinity, but its presence can pose a risk of being detected by adversaries. Therefore, this research focuses on the development of Radar Absorbing Material (RAM) using activated carbon obtained from cassava peel and Barium M-Hexaferrite. The research results indicate that this combination can be used as a protective layer on military drones made of composite hemp fibers, enhancing the drone's ability to absorb radar waves, thus reducing the risk of detection by adversaries. This improves the effectiveness of military operations and contributes to environmental preservation through the use of eco-friendly materials. 
Yellow-Flare Performance Improvement of PVC Addition into Mg-Sodium Nitrate-Based Pyrotechics Gunaryo, Gunaryo; Maharani, Anggaria; Budiman, Anggito; Widyatama, Satria Aqilla; Pratita, Elda; Miwazuki, Shella Athaya
Indonesian Journal of Chemical Studies Vol. 3 No. 2 (2024): Indones. J. Chem. Stud., December 2024
Publisher : Indonesian Scholar Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55749/ijcs.v3i2.60

Abstract

Light pyrotechnics is one strategic defence equipment for civil and military purposes. Additives act as one of the factors that affect the flame in pyrotechnics. Additives were used to slow down the combustion rate so that the flare could burn for a long time without drastically reducing the flame performance of the flare. This study focused on the performance of pyrotechnic flames with variations of PVC as a density-increasing material because it was in the form of a polymer and had high-chlorine content, resulting in a mixture that is difficult to burn. The experiment results exhibited that pyrotechnics without PVC showed intensity with an emission spectrum of 577-585 nm, light intensity of 723-1184 lux, and burning rate of 3.22-3.31 g/s. Increasing the PVC additive composition to 1.5 gr showed emissions with a wavelength of 596-597 nm, decreased intensity from 91-183 lux, and a slower burning rate of 0.72-0.88 g/s. The use of PVC was effectively applied in the 1.76-10.21% fraction and was actively able to slow down the rate of combustion of pyrotechnic mixtures. Hence, PVC could slow down the burning rate and increase density. Adding PVC in yellow pyrotechnics would slow down the burning rate of the pyrotechnic sample with the side effect of reducing the brightness of the yellow color and the intensity of the light.
Comparative Analysis of the Performance of Magnesium-Teflon-Viton (MTV) and Aluminum-Teflon-Viton (ATV) Flares Widyatama, Satria Aqila; Pratita, Elda; Gunaryo, Gunaryo; Wiratama, Minandre; Maharani, Anggaria
Indonesian Journal of Chemical Studies Vol. 4 No. 2 (2025): Indones. J. Chem. Stud. December 2025
Publisher : Indonesian Scholar Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55749/ijcs.v4i2.95

Abstract

The development of effective pyrotechnic flare compositions is critical for advancing indigenous defense capabilities. This study presents a comparative analysis of two formulations, Magnesium-Teflon-Viton (MTV) and Aluminum-Teflon-Viton (ATV) to evaluate their suitability for application in decoy systems within Indonesia’s defense sector. Key performance factors, including luminosity, combustion temperature, burn rate, and spectral color distribution, were assessed through controlled laboratory experiments. The MTV composition demonstrated superior luminous intensity, reaching up to 3572.5 lux, alongside broader spectral color output, indicating enhanced visibility and potential effectiveness in visual signaling applications. Conversely, the ATV composition exhibited higher average burn rates, peaking at 5.55 g/s, which suggests greater combustion efficiency and faster energy release, advantageous for time-sensitive deployments. Both systems maintained comparable combustion temperatures, with variations attributed to compositional differences in fuel-metal interactions and binder behavior. This study emphasizes the trade-offs between brightness and combustion kinetics inherent in flare formulations and provides valuable insights for optimizing material selection according to mission-specific applications. The results obtained in this study are expected to contribute to the creation of independence in defense material development by utilizing locally available resources and promoting domestic innovation in pyrotechnic technology.
Co-Authors Anggaria Maharani Aritonang, Sovian Budiman, Anggito Gunaryo, Gunaryo Hijrianisa, Alya Miwazuki, Shella Athaya Ningrum, Hanifa Setya Pangestu, Bintang Brilliant Widyatama, Satria Aqila Widyatama, Satria Aqilla Wiratama, Minandre