The crystallization process and the crystal morphology in Bi(Pb)SrCaCuO glass wereinvestigated by DTA, XRD, GEM and EDAX. The microstruetures of 2201, 2212 and 2223phases with superconducting properties are like-plate crystals, but that of Cu2PbO4 andCa2CuO3 are the gathering grains. CaO is the substance in flocculation.
