Abstract
The nonconventional technique of attrition milling has been used to producesuperconducting BSCCO powder from the starting powders of oxides and carbonates of Bi,Sr, Ca and Cu. This process shows a drastic reduction in processing time by 80% from theconventional solid-state reaction. The completion of the reaction was determined by x-raydiffraction of the milled powder. The superconducting property characterization wasdone for the critical transition temperature and the critical current density of theprocessed powder by magnetic methods. The attrition milled powder shows aTc of about 87 K after two high temperature treatments for 60 h andJc of theorder of 106 A cm−2 at 4 K. The superconducting properties of the processed powder are discussed in theframework of the Bean model.
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