Abstract
EDTA sol-gel methods have previously been employed successfully to synthesize Bi(Pb)-2223 phase. But heat-treatment optimization to transform the precursor solution into the final 2223 powder seems to have been neglected, leading to long heat-treatment times as in the classical powder method. In this paper, a route is proposed to accelerate 2223 phase kinetics formation, by improving calcination, sintering and intermediate grindings. Thus a nearly pure 2223 powder is obtained consecutive to a relatively short total duration of heat treatment.
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Rouessac, V., Wang, J., Provost, J. et al. Rapid synthesis of the Bi(Pb)-2223 110 K superconductor by the EDTA sol-gel method. JOURNAL OF MATERIALS SCIENCE 31, 3387–3390 (1996). https://doi.org/10.1007/BF00360738
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DOI: https://doi.org/10.1007/BF00360738