MANUFACTURE AND ANALYSIS OF MgB2 SUPERCONDUCTING WIRE WITH ADDITION CARBON NANO TUBE (CNT) BY IN-SITU

The study has been conducted on making samples of MgB2 superconducting wire, by adding 1% CNT with situ method. MgB2 is a superconducting material that has a critical temperature of 39 K. The making process begins with weighing Mg powder, B powder, and CNT powder. After weighing, a grinding process with mortar agate is conducted for 45 minutes. The grinding results are inserted into the SS304 tube, and then the rolling wire process is carried out. Afterwards, the wire is cut and had sintering process with temperature variations of 750 o C, 800 oC, and 850 o C. Characterization is carried out using XRD to determine the phase formed, SEM to see the morphology, and Cryogenic Magnet to determine the nature of superconductivity. The study finds that the critical temperature produced in the sample of MgB 2 wire without the addition of CNT is 33.77 K, while in the sample MgB2 wire with the addition of 1% CNT is 36.67 K. Thus, the addition of 1% CNT increased the critical temperature value.