Structural and Superconducting Properties of Bi-Based Low Density HTSC

Abstract:

Low density HTSC with nominal composition of Bi_1.6Pb_0.4Sr₂Ca₂Cu₃O_y filled with crystalline sucrose has been synthesized and its structucal and superconducting properties have been studied. The transport properties, morphology, density and structural identification were determined by using the standard four point probe, Field Emission Scanning Electron Microscope (FESEM), densitometer and X-ray diffraction (XRD) respectively. The critical current density (J_c) of optimized ratio of crystalline sucrose onto Bi-2223 powder used to produce low density Bi-based superconductor was found to be higher than the bulk polycrystalline sample. T_{C zero} obtained was varied between 93 and 101 K towards the increment ratio of crystalline sucrose with the highest T_{C zero} = 101 K for ratio of 0.050:1.950 and decrease gradually for further addition of cystalline sucrose. The crystallographic structures was found to be remained in tetragonal where a=b≠c. The grains with higher porosity resulting in decreasing of critical current density (J_c) as well as critical temperature (T_{c zero}) due to lack of effective area of current flows.

• Periodical: Advanced Materials Research (Volume 1107)
• Pages: 606-610
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1107.606
• Online since: June 2015
• Authors: C.M.N. Azura*, H. Azhan, K. Azman, I.N. Syuhaida, M. Robaiah, Mohd Mustaqim Rosli
• Keywords: BSCCO, Crystalline Sucrose, Low Density, Solid State, Superconductor

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