Synthesizing and characterizing oF YBCO superconductor via thermal treatment method at different sintering temperature

Mohamed Indera Alim Sah, Nur Afiqah (2022) Synthesizing and characterizing oF YBCO superconductor via thermal treatment method at different sintering temperature. [Project Paper] (Submitted)

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Abstract

Among the active and extensively distributed elements in physics that are receiving attention all around the globe is a superconductor. It offers zero resistance to electrical current, repelling magnetic fields, and holds enormous potential for the future. Thus, this research seeks to synthesize a high purity Y-123 superconducting system by using the thermal treatment method and comparing the effect of different sintering temperatures on the superconducting properties of Y-123. In the meantime, it also explores the study of the physical properties in microstructure, phase formation and critical temperature, Tc of Y-123. In this research, YBa2Cu3O7-δ (Y-123) sinter at temperatures of 920 °C, 950 °C and 980 °C. The microstructure and superconducting properties of Y-123 were investigated by thermogravimetric analyzer (TGA), X-ray diffraction (XRD), field-emission scanning electron microscope (FESEM), energy dispersive X-ray diffraction (EDX) alternating current susceptibility (ACS) and Four Point Probe (4PP). It was observed the sample Y-123 showed that the primary phases in all the XRD patterns were the orthorhombic crystal structure while Y-211 and BaCuO2 act as secondary phases. The sample Y-123 with sintering temperature 980 °C revealed the highest value of Tc-onset, Tcj, Tp and the sharpest diamagnetic transition in the normalized susceptibility curves. According to the microstructure analysis, the sample with the highest average grain size is 1.285 μm was sintered at 980 °C. On the other hand, from 4PP analysis, the sample of sintering temperature 980 °C exhibits good metallic behavior in the normal state with the increasing value of Tc-onset, Tc-offset, hole concentration and smallest ΔT for Y-123.

Item Type:	Project Paper
Faculty:	Fakulti Sains
Depositing User:	Ms. ROHANA ALIAS
Date Deposited:	05 Jun 2024 04:11
Last Modified:	05 Aug 2024 09:04
URI:	http://psaspb.upm.edu.my/id/eprint/1893

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