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Grain growth and sintering in Bi–(Pb)—Sr—Ca—Cu—O superconductors made by sol-gel

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Abstract

Bi—(Pb)—Sr—Ca—Cu—O superconductors were synthesized by sol-gel processing from nitrates by complexation with citric acid. Their grain growth and sintering above 800 °C were studied by Scanning Electron Microscopy (SEM) and Brunauer, Emmett, Teller (BET) porosimetry. The sintering was limited by anisotropic grain growth, and microcracks in 2212 phase grains were created due to the formation of 2223 phase.

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Authors and Affiliations

  1. Department of Mining, Metallurgical and Petroleum Engineering, University of Alberta, Edmonton, Alberta, T6G 2G6, Canada

    Kunsong Ma & Alain C. Pierre

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  1. Kunsong Ma
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  2. Alain C. Pierre
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Ma, K., Pierre, A.C. Grain growth and sintering in Bi–(Pb)—Sr—Ca—Cu—O superconductors made by sol-gel. Journal of Materials Research 9, 286–291 (1994). https://doi.org/10.1557/JMR.1994.0286

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  • DOI: https://doi.org/10.1557/JMR.1994.0286

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