Flux-pinning enhancement in Ag-sheathed Bi-2223 tapes by nanometer-SiC addition
文献类型：期刊论文
| 作者 | Z. Q. Yang ; X. D. Su ; G. W. Qiao ; Y. C. Guo ; S. X. Dou ; F. R. de Boer |
| 刊名 | Physica C-Superconductivity and Its Applications
 |
| 出版日期 | 1999 |
| 卷号 | 325期号:3-4页码:136-142 |
| ISSN号 | 0921-4534 |
| 关键词 | Bi-2223 nanometer SiC flux pinning critical-current density columnar defects phase evolution superconductor irradiation composites |
| 中文摘要 | We have studied the influence of nanometer SIC particles on the flux pinning and the magnetization critical current density J(cm) of Ag-sheathed (Bi,Pb)(2)Sr2Ca2Cu3Ox superconducting tapes. The results show that below 40 K SiC particles up to 0.5 wt.% introduce additional flux-pinning centres, and enhance J(cm) to different extent dependent on the temperature and applied magnetic field. For the tapes with SiC addition up to 0.5 wt.%, the magnetization critical current density J(cm) at 5 K in applied fields up to 50 kOe is twice that of the tape without SiC, for both H parallel to c and H parallel to ab. A study of the magnetization decay shows that tape with 0.15 wt.% nanometer SiC particles has a reduced flux-creep rate and increased pinning potential compared with the tape without SiC. The enhanced pinning properties can be attributed to the small SIC particles dispersed in the superconducting matrix and to the secondary defects at the interface between SiC particles and the superconducting matrix created by the introduction of the SiC particles. (C) 1999 Elsevier Science B.V. All rights reserved. |
| 原文出处 | |
| 公开日期 | 2012-04-14 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/37550]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 推荐引用方式 GB/T 7714 | Z. Q. Yang,X. D. Su,G. W. Qiao,et al. Flux-pinning enhancement in Ag-sheathed Bi-2223 tapes by nanometer-SiC addition[J]. Physica C-Superconductivity and Its Applications,1999,325(3-4):136-142. |
| APA | Z. Q. Yang,X. D. Su,G. W. Qiao,Y. C. Guo,S. X. Dou,&F. R. de Boer.(1999).Flux-pinning enhancement in Ag-sheathed Bi-2223 tapes by nanometer-SiC addition.Physica C-Superconductivity and Its Applications,325(3-4),136-142. |
| MLA | Z. Q. Yang,et al."Flux-pinning enhancement in Ag-sheathed Bi-2223 tapes by nanometer-SiC addition".Physica C-Superconductivity and Its Applications 325.3-4(1999):136-142. |
入库方式： OAI收割
来源：金属研究所
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