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STUDI PERBANDINGAN UJI MATERIAL ALUMINIUM MURNI (Al) DAN PELAPISAN ALUMINIUM MURNI DENGAN PERAK (Ag) MENGGUNAKAN METODA ELEKTROPLATING Rosyid Ridlo Al Hakim; Aming Sungkowo
Electro Luceat Vol 7 No 2 (2021): Electro Luceat (JEC) - November 2021
Publisher : LPPM Poltek ST Paul

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32531/jelekn.v7i2.381

Abstract

Electroplating is the process of coating metal surfaces by electrochemical methods. The electroplating research process uses aluminum material, where aluminum is a material that is easy to obtain, lighter and cheaper than other metals. The purpose of this study was to determine the ability of the electric current to power aluminum (Al) coated with silver (Ag) by the electroplating method, to determine the effect of the magnitude of the electric current and the length of time the coating process took on the weight of aluminum coated with silver (Ag) and to determine the strength of the metal. aluminum after being tested using the Brinnell test. The method used is to compare pure aluminum (Al) and aluminum coated with silver (Ag) by electroplating at different currents so that it can determine the effect of the electroplating process. After that, the Brinnell test was carried out to determine the hardness of the aluminum (Al) material after electroplating was carried out. The results of the study are the amount of current that flows during the electroplating process is directly proportional to the thickness of the electroplating layer attached to the aluminum (Al) surface. If the electroplating process uses a large current, the results of the attached layer will look rough and not smooth, the electroplating layer also affects the material testing using the Brinnell method. The results of the Brinnell test prove that the hardness value of the aluminum (Al) material is directly proportional to the thickness of the layer.
Kelebihan, Kekurangan, Peluang Teknologi 5G di Indonesia Trikolas Trikolas; Aming Sungkowo; Rosyid Ridlo Al Hakim; Ariep Jaenul
INSOLOGI: Jurnal Sains dan Teknologi Vol. 1 No. 1 (2022): Februari 2022
Publisher : Yayasan Literasi Sains Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (362.838 KB) | DOI: 10.55123/insologi.v1i1.145

Abstract

On May 27, 2021, Indonesia has started using the fifth-generation digital device known as 5G and officially launched in Indonesia. Currently, Indonesian people are still specifically familiar with third generation (3G) and fourth (4G) network services, and this type of 4G service is still completely unreachable in several locations in Indonesia, especially outside Java. The development of fifth generation (5G) technology in Indonesia is still not widely studied. This study aims to review of strengths and weaknesses of 5G technology in Indonesia.