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Laser fabrication of Pb doped Bi-Sr-Ca-Cu-O superconductor

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Abstract

It has been shown that the addition of Pb enhances the formation of 110 K (2 2 2 3) phase in Bi-Sr-Ca-Cu-O system due to kinetic reasons. With the premise that a local temperature spike, exceeding the melting temperature of the compound, might enhance the nucleation and growth of the 110 K phase, we have conducted laser calcination experiments of Pb doped Bi-Sr-Ca-Cu-O compound by using a high energy Nd: YAG laser. It is found that laser calcination of this material indeed enhances kinetics of formation of the 110 K phase. Nearly 100% 2223 phase has been obtained in laser processed samples in much shorter sintering time compared with the conventional sintering.

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Authors and Affiliations

  1. Department of Metallurgy, Mechanics and Materials Science, Michigan State University, 48824, East Lansing, Ml, USA

    C. W. Chen, P. A. A. Khan & K. Mukherjee

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  1. C. W. Chen
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  2. P. A. A. Khan
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  3. K. Mukherjee
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Chen, C.W., Khan, P.A.A. & Mukherjee, K. Laser fabrication of Pb doped Bi-Sr-Ca-Cu-O superconductor. J Mater Sci 27, 3221–3224 (1992). https://doi.org/10.1007/BF01116016

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  • DOI: https://doi.org/10.1007/BF01116016

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