Comparative studies of pure YBa2Cu3O7-ẟ prepared by modified thermal decomposition method against thermal treatment method

Nur Afiqah Mohamed Indera Alim Sah, Mohd Mustafa Awang Kechik, Chen Soo Kien, Lim Kean Pah, Abdul Halim Shaari, Muhammad Kashfi Shabdin, Muhammad Khalis Abdul Karim, Muralidhar Miryala, Hussein Baqiah, Khairul Khaizi Mohd Shariff, Yap Siew Hong, Arebat Ryad Alhadei Mohamed

Research output: Contribution to journalArticlepeer-review

Abstract

High temperature superconductor Yttrium Barium Copper Oxide (YBCO) was successfully prepared by modified thermal decomposition and thermal treatment method. Both samples in that methods sintered at 980 °C and were investigate by using X-ray diffraction (XRD), field emission scanning electron microscope (FESEM) and R-T measurement. From XRD analysis, it was confirmed that Yttrium Barium Copper Oxide, YBa2Cu3O7-ẟ (Y-123) acts as primary phase with orthorhombic crystal structure and Pmmm space group while Diyttrium Barium Copper Oxide, Y2BaCuO5 (Y-211) and Barium Copper Oxide (BaCuO2) belong to the secondary phases. The microstructure analysis showed that the average grain size of modified thermal decomposition (TD) method (3.6559 μm) was bigger compared with thermal treatment (TT) method (1.7766 μm). The sample exhibited metallic behavior and the critical temperature, Tc-onset was increased as modified thermal decomposition (TD) method was applied. Based on the results obtained, the modified thermal decomposition (TD) method exhibited superior performance compared to the thermal treatment (TT) in terms of the physical properties which includes microstructure, phase formation and critical temperature Tc of Y-123.

Original languageEnglish
Article number340
JournalApplied Physics A: Materials Science and Processing
Volume130
Issue number5
DOIs
Publication statusPublished - 2024 May

Keywords

  • Superconducting properties
  • Thermal decomposition method
  • Thermal treatment method
  • YBaCuO superconductor

ASJC Scopus subject areas

  • General Chemistry
  • General Materials Science

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