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.
Lead oxide compounds Bi-2223/Ag tapes Critical current Microstructure
Mingya Li Zhenghe Han
Department of Materials Science and Engineering,Northeastern University at Qinhuangdao,Qinhuangdao 0 Applied Superconductivity Research Center,Department of Physics,Tsinghua University,Beijing 100084,P
国际会议
The Fifth China International Conference on High-Performance Ceramics (第五届先进陶瓷国际研讨会(CICC-5))
长沙
英文
641-643
2007-05-10（万方平台首次上网日期，不代表论文的发表时间）