• Fulltext

       

        Click here to view fulltext PDF


      Permanent link:
      https://www.ias.ac.in/article/fulltext/boms/014/02/0199-0206

    • Keywords

       

      Sintering time; quenching; highTc phase

    • Abstract

       

      Influence of sintering time and quenching in Bi2 −xPbxCa2Sr2Cu3Oy(x=0.0, 0.1, 0.2, 0.25, 0.3 and 0.4) samples have been studied by resistance and XRD measurements. In samples sintered at 850°C for 4 days,Tc(0) increases with Pb concentration.Tc(0) increased from 81 K forx=0.0 to 109 K inx=0.30 sample and then decreased. Increasing the sintering time to 10 days decreased theTc Quenching further decreased theTc(0). From X-ray diffraction patterns, the intensity peaks of low and highTc phases have been measured. The addition of Pb promotes highTc-phase. Sintering time, slow cooling and rapid quenching studies show that there is an optimum sintering time and cooling rate to produce a highTc-phase.

    • Author Affiliations

       

      D Mangapathi Rao1 M Muralidhar1 T Somaiah1 V Hari Babu1

      1. Department of Physics, Osmania University, Hyderabad - 500 007, India
    • Dates

       
  • Bulletin of Materials Science | News

    • Editorial Note on Continuous Article Publication

      Posted on July 25, 2019

      Click here for Editorial Note on CAP Mode

© 2017-2019 Indian Academy of Sciences, Bengaluru.