• A K Adak

      Articles written in Bulletin of Materials Science

    • Preparation of superconducting-grade copper from commercial grade copper salt

      P Pramanik A K Adak A Pathak

      More Details Abstract Fulltext PDF

      Fine samples with nominal composition of Bi1·6Pb0·4Sr2Ca2Cu3Ox have been produced by solid state method using various purity grades of starting copper oxide powder. Studies onTc and high-Tc volume fraction measurements of these samples revealed that the samples produced using CuO powders obtained in laboratory after double purification of the commercially available copper salts have higherTc (104·46 K) and increased percentage of highTc volume fraction (58%) compared to even the samples prepared from Aldrich grade (99·99%) CuO. A simple and cost-effective chemical route for the purification of CuO from commercially available copper salts has been outlined.

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    • Dr Shanti Swarup Bhatnagar for Science and Technology

      Posted on October 12, 2020

      Prof. Subi Jacob George — Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bengaluru
      Chemical Sciences 2020

      Prof. Surajit Dhara — School of Physics, University of Hyderabad, Hyderabad
      Physical Sciences 2020

    • Editorial Note on Continuous Article Publication

      Posted on July 25, 2019

      Click here for Editorial Note on CAP Mode

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