摘要
By internal Sn process we have successfully fabricated the multifilamentary Nb3Sn strand with a diameter of 0.79 mm, which has 5616-6270 filaments. A two-step heat treatment was used for the Nb3Sn strands. The first step is related to bronzing process between Cu and Sn at a temperature range of 200-600 °C, whereas the second step for the formation of superconducting Nb3Sn phase at 600-800 °C. A non-Cu Jc (12 T, 4.2 K) value of 1087 A/mm2 has been obtained. The microstructure and transport property of strands have been discussed.
| 源语言 | 英语 |
|---|---|
| 页(从-至) | 819-822 |
| 页数 | 4 |
| 期刊 | Physica C: Superconductivity and its Applications |
| 卷 | 445-448 |
| 期 | 1-2 |
| DOI | |
| 出版状态 | 已出版 - 1 10月 2006 |
| 已对外发布 | 是 |
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