In this work, we will report the results on preparing the BiPbCaSrCuO superconductors. A phase diagram around the compositional ratio 2223(=BiCaSrCu) will be studied systematically. It is found that the superconducting properties of the samples are very sensitive to the annealing conditions. The results of annealing conditions, resistivity, magnetic susceptibility, and TGA data were applied to characterized the physical properties of samples in this system.
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