Pengaruh Suhu Sintering Terhadap Pembentukan Fase Superkonduktor BSCCO-2223 dengan Kadar Ca = 2,10 Menggunakan Metode Pencampuran Basah

Abstract

This study was conducted to determine the effect of sintering temperature on the formation of BSCCO-2223 superconductor phase with levels of Ca = 2,10 using the wet mixing method. The materials used were Bi₂O₃, SrCO₃, CaCO₃, CuO, HNO₃ and aquades. Synthesis is carried out by dissolving the materials using HNO₃ and aquades slowly then the solution is dried for 40 hours at a temperature of 300, 400 and 600 C gradually. The samples were calcined at 800 C for 10 hours and each was sintered with temperature variations of 850, 855, 860 and 865 C for 20 hours. The XRD result shows that the sintering temperature has an effect on the formation of BSCCO-2223 superconductor phase, with volume fraction value which tends to increase with increasing sintering temperature. The highest volume fraction was obtained in the BSCCO-2223 sample with sintering temperature of 865 C which is 79,49%. SEM result shows that all samples have arranged layers (oriented) with relatively small empty space between the plaques (void). The highest orientation degree is in the BSCCO-2223 sample with sintering temperature of 860 C which is 23,77%.