Effect of Sintering Conditions on the Phase Formation and Microstructure of Bi-2223/Ag/Ni Composite-sheathed Tapes
Effect of sintering conditions in the first heat treatment on the phase and microstructure evolution of Bi-2223/Ag/Ni composite-sheathed tapes fabricated by powder-in-tube method was studied.Samples were sintered at different temperatures for different time in an atmosphere of 14.5% O2.The results showed that this higher O2 atmosphere improved the content of Bi-2223 phase.XRD and SEM results showed that Bi-2223 content increased with the extension of the dwelling time.Meanwhile,the sintering temperature had significant influence on the Bi-2223 content and secondary phase dimensions as well.With the increase of the sintering temperature,the Bi-2223 content reached to a maximum at 834℃.With further increase of sintering temperature,the Bi-2223 phase was decomposed to Bi-2212 and others secondary phases.
Bi-2223/Ag/Ni tapes Bi-2223 fraction Microstructure Sintering temperature
Xingpin Chen Meng Liu Xiaowei Yu Mingya Li
College of Materials Science and Engineering, Chongqing University, Chongqing, 400030, China Department of Materials Science and Engineering, Northeastern University at Qinhuangdao,066004, Hebe
国际会议
the Chinese Materials Congress 2012(2012年中国材料大会(CMC2012))
太原
英文
239-242
2012-07-13（万方平台首次上网日期，不代表论文的发表时间）