Preparation of high-T sub(c) Bi-Pb-Sr-Ca-Cu-O ceramic superconductor by using the sol-gel method

High-T sub(c) superconductors of the form Bi-Pb-Sr-Ca-Cu-O, with the 2223 phase as the main phase, were fabricated by a sol-gel method from an aqueous solution of metal acetates containing excess acetic acid with tartaric acid and glycol additions. Their zero resistance temperature was 105 K and T s...

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Bibliographic Details
Published in:Superconductor science & technology 1990-01, Vol.3 (11), p.564-567
Main Authors: Xu, Qinlun, Bi, Lijian, Peng, Dingkun, Meng, Guanyao, Zhou, Guien, Mao, Zhiqiang, Fan, Chengao, Zhang, Yuheng
Format: Article
Language:English
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Summary:High-T sub(c) superconductors of the form Bi-Pb-Sr-Ca-Cu-O, with the 2223 phase as the main phase, were fabricated by a sol-gel method from an aqueous solution of metal acetates containing excess acetic acid with tartaric acid and glycol additions. Their zero resistance temperature was 105 K and T sub(c) (onset) was above 120 K. These samples exhibited excellent homogeneity and sinterability at relatively low firing temperature. Thermal analysis, infrared spectra and x-ray diffraction patterns revealed the mechanisms of decomposition of the organic compounds and crystallization of various phases.
ISSN:0953-2048