Effect of Lead Oxide Compounds on the Microstructure and Properties of Bi-2223/Ag Tapes
The effect of lead oxide compounds in (Bi,Pb)2Sr2Ca2Cu3Ox ((Bi,Pb)-2223) precursor powder on the microstructure and properties of Bi-2223/Ag tapes was investigated. Firstly, precursor powders containing different types of lead-rich phases were prepared by controlling the calcination temperature and atmosphere. Then monofilament (Bi,Pb)-2223/Ag tapes were fabricated using these powders. Lastly, samples scissor from these tapes were heat treated under different conditions. The phase composition and microstructure of these powders and tapes were analyzed using XRD and SEM. Experimental results show that the lead-rich phases in BSCCO precursor powders played an important role on the formation of the (Bi,Pb)-2223 phase, the microstructure and critical current of Bi-2223/Ag tapes.
Wei Pan and Jianghong Gong
M. Y. Li and Z. H. Han, "Effect of Lead Oxide Compounds on the Microstructure and Properties of Bi-2223/Ag Tapes", Key Engineering Materials, Vols. 368-372, pp. 641-643, 2008