• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Materials Research >Enhanced high-field performance in Fe-sheathed MgB_2 tapes using inexpensive stearic acid additives
【24h】

Enhanced high-field performance in Fe-sheathed MgB_2 tapes using inexpensive stearic acid additives

机译：使用廉价的硬脂酸添加剂可增强铁护套MgB_2胶带的高场性能

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

High performance Fe-cladded MgB_2 taps were prepared by the in situ powder-in-tube method utilizing very cheap stearic acid (C_(18)H_(36)O_2) as dopants. The amount of stearic acid was varied from 0 to 30 wt%. We found that a significant enhancement of J_c, H_(irr), and H_(c2) in comparison with undoped samples was easily achieved. At 4.2 K, the transport J_c for the best doped tapes (10 wt%) reached 2 x 10~4 A/cm~2 at 10 T and 3.7 x 10~3 A/cm~2 at 14 T, respectively, an order of magnitude higher than for the pure tapes. In particular, at 20 K, the irreversibility field of the 10 wt% doped tape was around 10 T, which is comparable to the upper critical field of the commercial NbTi at 4.2 K. The results demonstrate great potential of MgB_2 tapes for superconducting magnets.
机译：采用非常便宜的硬脂酸（C_（18）H_（36）O_2）作为掺杂剂，通过原位管内粉末法制备了高性能的Fe包覆MgB_2丝锥。硬脂酸的量为0至30重量％。我们发现，与未掺杂样品相比，很容易实现J_c，H_（irr）和H_（c2）的显着增强。在4.2 K时，最佳掺杂带（10 wt％）的传输J_c在10 T时达到2 x 10〜4 A / cm〜2，在14 T时达到3.7 x 10〜3 A / cm〜2，一个数量级数量级要比纯磁带高。尤其是在20 K时，掺杂10 wt％的带的不可逆场约为10 T，这与商用NbTi在4.2 K时的上临界场相当。结果表明MgB_2带在超导磁体方面具有巨大潜力。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号