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Zakaria, Nurul Zafirah
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Materials Science & Nanotechnology Physics

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A Modified Thermal Decomposition Approach for The Synthesis of Phase-Pure YBa₂Cu₃O₇−δ Superconductor Dzul-Kifli, Nur Athirah Che; Zakaria, Nurul Zafirah; Kechik, Mohd Mustafa Awang; Kien, Chen Soo; Pah, Lim Kean; Shaari, Abdul Halim; Shabdin, Muhammad Kashfi; Doyan, Aris; Hong, Yap Siew; Hapipi, Nur Hidayah Mohd
Journal of Material Science and Radiation Vol. 2 No. 1 (2026)
Publisher : Balai Publikasi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56566/jmsr.v2i1.694

Abstract

High temperature superconductor of YBa2Cu3O7-δ (Y-123) has been synthesised using the modified thermal decomposition method (MTD). In this work, a pure Y-123 sample is produced using an acetate-based material as a precursor and sintered at 980 oC. The study on the phase formation, superconducting properties and microstructural characteristics of pure Y-123 was investigated using X-ray diffraction (XRD), four-point probe (4PP) and scanning electron microscopy (SEM) respectively. XRD analysis confirmed the formation of a single-phase orthorhombic Y-123 crystal structure with an orthorhombicity of 0.008, indicating high phase purity without detectable impurity phases. Electrical measurements revealed a sharp superconducting transition with a critical onset temperature, Tc-onset of 97.3. SEM observations showed plate-like grains with an average grain size of 2.25 µm and good grain connectivity. These results demonstrate that the modified thermal decomposition technique is an effective approach for producing phase-pure YBCO superconductors with excellent structural and superconducting properties, highlighting its potential for advanced superconducting applications
Co-Authors Aris Doyan Dzul-Kifli, Nur Athirah Che Hapipi, Nur Hidayah Mohd Hong, Yap Siew Kechik, Mohd Mustafa Awang Kien, Chen Soo Pah, Lim Kean Shaari, Abdul Halim Shabdin, Muhammad Kashfi