STUDY OF STRUCTURAL, MORPHOLOGICAL AND ELECTRICAL PROPERTIES IN THE (Bi₁.₆Pb₀.₄)(Sr₁.₈Ba₀.₂)Ca₂(Cu₁₋ₓ Gdₓ)₃Oᵧ SUPERCONDUCTORS

Authors

  • C. LUNG Babes-Bolyai University, Physics Faculty, M. Kogalniceanu No.1, 400084, Cluj-Napoca, Romania. claudiu.lung@phys.ubbcluj.ro
  • D. MARCONI Babes-Bolyai University, Physics Faculty, M. Kogalniceanu No.1, 400084, Cluj-Napoca, Romania; Department of Molecular and Biomolecular Physics, National Institute for Research and Development of Isotopic and Molecular Technologies, Cluj-Napoca, Romania
  • A. POP Babes-Bolyai University, Physics Faculty, M. Kogalniceanu No.1, 400084, Cluj-Napoca, Romania. aurel.pop@ubbcluj.ro

DOI:

https://doi.org/10.24193/subbphys.2018.14

Keywords:

BiPb 2223 doped superconductors, XRD, SEM, electrical properties

Abstract

X-ray powder diffraction (XRD), scanning electron microscopy (SEM) and electrical resistivity measurements are performed to investigate some physical properties of (Bi1.6Pb0.4)(Sr1.8Ba0.2)Ca2(Cu1-xGdx)3Oy superconducting samples fabricated at sintering temperatures of 840 0C and 845 0C and the uniaxial pressures of 196MPa and 392MPa respectively. The samples were prepared by standard solid-state reaction methods. XRD measurements show that the samples obtained at 840 °C contain two phases. With the increase of the sintering temperature at 845 0C, a decrease in the diffraction peaks of the phase 2212 is observed, and with the increase of the pressure at 392MPa this phase falls below 10%. SEM analysis show that the superconductors have a uniform surface, but the size of the granules changes so that the sample sintered at 845 °C and the uniaxial pressure of 392 MPa has the best crystallinity.

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STUDIA UBB PHYSICA, Volume 63 (LXIII), No. 1-2, December 2018

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Published

2018-12-30

How to Cite

LUNG, C., MARCONI, D., & POP, A. (2018). STUDY OF STRUCTURAL, MORPHOLOGICAL AND ELECTRICAL PROPERTIES IN THE (Bi₁.₆Pb₀.₄)(Sr₁.₈Ba₀.₂)Ca₂(Cu₁₋ₓ Gdₓ)₃Oᵧ SUPERCONDUCTORS. Studia Universitatis Babeș-Bolyai Physica, 63(1-2), 133–142. https://doi.org/10.24193/subbphys.2018.14

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Volume 63, No. 1-2, 2018

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Articles

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