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A Bi-based high-Tc ceramic superconductor (Bi1.6Pb0.4Sr2Ca2Cu3Ox) was milled in various fluids and the effect of fluids on the crystal structure and morphology of the milled powder was studied. It was found that methyl acetate is an excellent fluid for wet grinding without decomposition of the 110 K phase. Dehydrated pure ethanol acts as a reagent to make cracks on the specific surface of Bi-based...
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