Karakterisasi Kawat Prototype Monofilament
Superkonduktor MgB2 Dengan Penambahan Mg 10%
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Institusion
Institut Teknologi Perusahaan Listrik Negara
Author
Rabbani, Muhammad Alif Dirgantara
Pramono, Andika Widya
Imaduddin, Agung
Pramono, Andika Widya
Imaduddin, Agung
Subject
Teknik Mesin
Datestamp
2019-10-10 09:43:17
Abstract :
This research is a continuation of experiments conducted by other researchers beforehand by Rauf who had researched at P2MM-LIPI, he started from the synthesis process to MgB2 superconducting monofilament wire with stainless steel 316 (SS316) sheath. In this tube there is an alloy of Magnesium and Boron which has a blend of raw materials Magnesium (Mg) and Boron (B) powder with the addition of 10% Mg which has a stoichiometric composition (x = 1.24: 1). Before becoming a wire, this synthesis has gone through a process of grinding (milling) using mortar manually. The powder that has gone through the milling process is then inserted into a 316 stainless steel tube with an outer diameter of 6mm. The tube containing powder mixed with Mg and B then goes through the rolling process using a wire rolling machine to obtain an outer diameter measuring 5.3mm. Furthermore, the author continues the research process of monofilament prototype wire starting from the heating process to testing. Wire through the sintering process in furnace furnaces with a temperature of 800 ? for 6 hours. The sintered sample is then drawn using a wire drawing machine with variations of dies 0.1. Starting from the size of the biggest dies 5.3 mm to the smallest 2.5 mm. In the process of withdrawal, the wire will be cut 1.5 cm in each change of dies 0.5mm, which is in the sizes of 4.5mm, 4mm, 3.5mm, 3mm and 2.5mm. After obtaining a wire that has been cut off, it will be done characterization. Characterization carried out was X-Ray Diffraction (XRD) test, Scanning Electron Microscopy (SEM-EDS) test and Cryogenic test. After testing the 3.0mm wire is the most ideal, seen from the resistivity test which shows a graph of decreased resistivity and has a value of 2.7x10-4? and from the SEM EDS test which shows the most even distribution of the Mg in it.
This research is a continuation of experiments conducted by other researchers beforehand by Rauf who had researched at P2MM-LIPI, he started from the synthesis process to MgB2 superconducting monofilament wire with stainless steel 316 (SS316) sheath. In this tube there is an alloy of Magnesium and Boron which has a blend of raw materials Magnesium (Mg) and Boron (B) powder with the addition of 10% Mg which has a stoichiometric composition (x = 1.24: 1). Before becoming a wire, this synthesis has gone through a process of grinding (milling) using mortar manually. The powder that has gone through the milling process is then inserted into a 316 stainless steel tube with an outer diameter of 6mm. The tube containing powder mixed with Mg and B then goes through the rolling process using a wire rolling machine to obtain an outer diameter measuring 5.3mm. Furthermore, the author continues the research process of monofilament prototype wire starting from the heating process to testing. Wire through the sintering process in furnace furnaces with a temperature of 800 ? for 6 hours. The sintered sample is then drawn using a wire drawing machine with variations of dies 0.1. Starting from the size of the biggest dies 5.3 mm to the smallest 2.5 mm. In the process of withdrawal, the wire will be cut 1.5 cm in each change of dies 0.5mm, which is in the sizes of 4.5mm, 4mm, 3.5mm, 3mm and 2.5mm. After obtaining a wire that has been cut off, it will be done characterization. Characterization carried out was X-Ray Diffraction (XRD) test, Scanning Electron Microscopy (SEM-EDS) test and Cryogenic test. After testing the 3.0mm wire is the most ideal, seen from the resistivity test which shows a graph of decreased resistivity and has a value of 2.7x10-4? and from the SEM EDS test which shows the most even distribution of the Mg in it.
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