한국재료학회지 (Korean Journal of Materials Research)

  • 제33권9호
  • /
  • Pages.367-371
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  • 2023
  • /
  • 1225-0562(pISSN)
  • /
  • 2287-7258(eISSN)
한국재료학회 (Materials Research Society of Korea)
권호 표지
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Preparation and Structure Properties of LaBa2Cu2O9, LaBa22CaCu3O12 and LaBa2Ca2Cu5O15 Perovskites

  • Kareem Ali Jasim (Department of Physics, College of Education for Pure Science (Ibn Al-Haitham), University of Baghdad) ;
  • Hind Abdulmajeed Mahdi (Department of Physics, College of Education for Pure Science (Ibn Al-Haitham), University of Baghdad) ;
  • Rafah Ismael Noori (Department of Physics, College of Education for Pure Science (Ibn Al-Haitham), University of Baghdad) ;
  • Marwa Ayad Abdulmajeed (Department of Physics, College of Education for Pure Science (Ibn Al-Haitham), University of Baghdad)
  • 투고 : 2023.08.14
  • 심사 : 2023.09.18
  • 발행 : 2023.09.27
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초록

In this study we examine variations in the structure of perovskite compounds of LaBa2Cu2O9, LaBa22CaCu3O12 and LaBa2Ca2Cu5O15 synthesized using the solid state reaction method. The samples' compositions were assessed using X-ray fluorescence (XRF) analysis. The La: Ba: Ca: Cu ratios for samples LaBa2Cu2O9, LaBa22CaCu3O12 and LaBa2Ca2Cu5O15 were found by XRF analysis to be around 1:2:0:2, 1:2:1:3, and 1:2:2:5, respectively. The samples' well-known structures were then analyzed using X-ray diffraction. The three samples largely consist of phases 1202, 1213, and 1225, with a trace quantity of an unknown secondary phase, based on the intensities and locations of the diffraction peaks. According to the measured parameters a, b, and c, every sample has a tetragonal symmetry structure. Each sample's mass density was observed to alter as the lead oxide content rose. Scanning electron microscope (SEM) images of the three phases revealed that different Ca-O and Cu-O layers can cause different grain sizes, characterized by elongated thin grains, without a preferred orientation.

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