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All Journal Jurnal Pascapanen dan Bioteknologi Kelautan dan Perikanan Infotekmesin Jurnal Nuansa Akademik: Jurnal Pembangunan Masyarakat Accurate: Journal of Mechanical Engineering and Science Abdi Masya JURNAL AGROINDUSTRI HALAL
Sodikin, Jenal
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Journal : Infotekmesin

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Karakteristik Struktur Kristal In2Se3 Hasil Preparasi Dengan Metode Bridgman Ulikaryani, Ulikaryani; Sodikin, Jenal; Akhlis Sarihidaya Laksana, Nur; Satria Jati, Unggul; Kristiningsih, Ari
Infotekmesin Vol 14 No 1 (2023): Infotekmesin: Januari, 2023
Publisher : P3M Politeknik Negeri Cilacap

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35970/infotekmesin.v14i1.1753

Abstract

Apart from using silicon material, thin-layer solar cells can be made from various types of semiconductor materials, such as a combination of groups III and VI. In solar cell applications, these materials are usually used as n-type coatings. This study not only aimed to determine the crystal structure and the effect of annealing temperature on the crystal lattice parameters but also to determine the chemical composition and surface morphological structure of the crystals formed from the preparation. The crystal growth process was carried out using the Bridgman method with different heating patterns. The temperature in both annealing temperatures is 200oC and 250oC. The physical properties of the prepared In2Se3 crystals were characterized using XRD, SEM, and EDAX. XRD Characterization was used to determine the crystal structure, while SEM and EDAX characterization was used to determine the surface morphology and chemical composition of the crystals. The result of the XRD characterization showed that the formed In2Se3 crystals were polycrystals with a hexagonal structure. Based on the diffractogram obtained, the In2Se3 crystalline heating 1 has better quality. EDAX analysis showed that the In2Se3 crystals were composed of elements of In and Se with a mole ratio of 2:9, while the SEM characterization showed that the color of the surface morphology of the In2Se3 crystals was not homogeneous.
Desain Pisau Pengurai dan Sistem Pengayak serta Uji Produk Mesin Pengolah Sabut Kelapa sebagai Bahan Mentah Komposit Tarigan, Roy Aries Permana; Priyanto, Kaleb; Sodikin, Jenal; Pratama, M R; Ramadhani, I R
Infotekmesin Vol 15 No 1 (2024): Infotekmesin: Januari, 2024
Publisher : P3M Politeknik Negeri Cilacap

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35970/infotekmesin.v15i1.2097

Abstract

This research aims to design a decomposing blade, sieving system, and test machine products. The method for completing coconut fiber processing machines consists of three stages, namely the design and production process stages, as well as machine product testing. This research produces the following data, namely the design of the untangling knife which is a combination of the functions of the coir untangling knife for random and woven results. Calculation of the equilibrium moment on the shaft obtained a value of 𝑅𝑉𝐵 is 28.68 N and the reaction at point A was 𝑅𝑉𝐴 is 28.32 N, with the diameter of the shaft used in the coconut fiber sieving machine transmission system being Ø28 mm. Fiber uniformity is obtained from twice decomposition processes, whereas the level of fiber/powder uniformity is influenced by the long sieving process time and also the high rotational speed of the sieve.
Co-Authors Agus Santoso Akhlis Sarihidaya Laksana, Nur Fadlilah, Ilma Hastuti, Hety Dwi Kristiningsih, Ari Kurniawan, Ipung Lutfi Syafirullah Nur Akhlis Sarihidaya Laksana, Nur Akhlis Sarihidaya Perdana Wanti, Linda Pramita, Ayu Pratama, M R Priyanto, Kaleb Pujono Radhi Ariawan Ramadhani, I R Roy Aries Permana Tarigan Satria Jati, Unggul Setia Pribadi, Joko Tarigan, Roy Tarigan, Roy Aries Permana Ulikaryani, Ulikaryani Wittriansyah, Khoeruddin