| MgB_2带材的超导电性与制备温度的关系 |
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| 引用本文： | 张芹,朱亚彬,王淑芳,路庆凤,周岳亮.MgB_2带材的超导电性与制备温度的关系[J].低温与超导,2003,31(3):27-29. |
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| 作者姓名： | 张芹 朱亚彬 王淑芳 路庆凤 周岳亮 |
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| 作者单位： | 1. 河南师范大学物理与信息工程学院,新乡,453002
2. 中国科学院物理研究所,北京,100080 |
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| 基金项目： | 国家重点基础研究发展计划(973计划)，， |
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| 摘 要： | 报导了利用电泳技术在不锈钢基底上制备 Mg B2 超导带材。采用扫描电子显微镜、X射线衍射、电测量和磁测量技术 ,分别研究了后退火温度对带材表面形貌、晶体结构、超导转变温度和临界电流密度的影响。结果表明 ,随着后退火温度的升高 ,Mg B2 带材的结晶情况逐渐变好 ,超导转变温度升高、转变宽度变窄。 90 0℃下制备的带材的临界电流密度为 6× 10 5A/ cm2 (5 K,0 T)。
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| 关 键 词： | 电泳 MgB2 带材 制备温度 |
| 修稿时间： | 2003年3月12日 |
Relation Between Post-annealing Temperature and Superconductivity of MgB2 Tapes |
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| Zhang Qin ,Zhu Yabin ,Wang Shufang ,Lu Qingfeng ,Zhou Yueliang.Relation Between Post-annealing Temperature and Superconductivity of MgB2 Tapes[J].Cryogenics and Superconductivity,2003,31(3):27-29. |
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| Authors: | Zhang Qin Zhu Yabin Wang Shufang Lu Qingfeng Zhou Yueliang |
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| Institution: | Zhang Qin 1,Zhu Yabin 2,Wang Shufang 2,Lu Qingfeng 1,Zhou Yueliang 2 |
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| Abstract: | MgB 2 tapes on stainless-steel substrates have been fabricated by a two-step method:B films were prepared by electrophoresis followed by an ex-situ annealing process. X-ray diffraction、 Scanning electron microscopy、 Resistance and magnetic measurements were used to study the effect of post-annealing temperature on superconductivity of MgB 2/SS tapes. Results show that with the increasing temperature, it's superconducting properties become better. |
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| Keywords: | Electrophoresis MgB 2 Tape Annealing temperature |
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