加Ag对（Bi,Pb）2Sr2Ca2Cu3Oy超导带材组织和性能的影响

加Ag对（Bi,Pb）₂Sr₂Ca₂Cu₃O_y超导带材组织和性能的影响

详细信息

1. Department of Metal Forming, University of Science and Technology Beijing, Beijing 100083, China;
2. Wsinghua University, Beijing 100084

摘要: 研究了超导粉末中添加银对Bi系高温超导带材组织和性能的影响。添加银粉后,增大了银/氧化物之间的接触面积,改善了晶粒弱连接,相应地提高了Jc。另外加银粉可有效降低裂纹危害,增强带材的抗弯性能。
- 超导带材 /
- Ag
Abstract: Effects of doping silver powders on the properties of Bi-2223 superconducting tapes were studied.It was found that the Ag/(2223) interface area with a high degree of texturing can be enhanced and thus its Jc can be improved by addition of silver powders.Besides,the bending strain characteristic of Ag-doped tapes was improved than that of undoped ones.The crack initiation and propagation induced by bending in Ag-doped tapes were delayed.
- superconducting tapes /
- Ag-doped