| 摘要 |
Improved process for making Bi-Pb-Sb-Sr-Ca-Cu oxide superconductors. A solution of the nitrates of Bi, Pb, Sr, Ca, and Cu is reacted with a quaternary ammonium carbonate in a dispersion (heel) of Sb2O5. Carbonates of Bi, Pb, Sr, Ca, and Cu precipitate homogeneously on the Sb2O5 particles. Solids are recovered, dried, and heated to make a superconductor. The method minimizes handling toxic antimony compounds and reduces introduction of contaminants. Novel compositions result.
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