• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Physica, C. Superconductivity and its applications >PREPARATION OF MELT-TEXTURED NDBA2CU3OY BULK WITH ND4BA2CU2O10 ADDITION
【24h】

PREPARATION OF MELT-TEXTURED NDBA2CU3OY BULK WITH ND4BA2CU2O10 ADDITION

机译：添加ND4BA2CU2O10的熔体化NDBA2CU3OY本体的制备

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

The NdBa2Cu3Oy (Nd123) bulk superconductor, to which Nd4Ba2Cu2O10 (Nd422) particles were intentionally added, was prepared through the so-called MMTG process in Ar (99% purity) flowing atmosphere at an ambient pressure. The quasi-single crystal thus grown was about 1 cm X 1 cm X 1 cm in dimension. It turned out that the Nd422 particles were uniformly distributed in the Nd123-phase matrix in a fashion similar to the distribution of the intentionally added Y211 particles in the Y123 phase matrix. The superconducting transition temperature T-c for the sample subjected to post-annealing in oxygen atmosphere was 94 K. The critical current density J(c) was determined to be 45 000 A/cm(2) at 77 K and 1 T, when the field was applied parallel to the c-axis of the sample. To the best of our knowledge, the J(c) value is the highest and the size of the quasi-single crystal is the largest in the melt-textured Nd123 bulk superconductors so far reported. [References: 14]
机译：通过所谓的MMTG工艺，在氩气（纯度为99％）的大气压下，在环境压力下，有意添加了Nd4Ba2Cu2O10（Nd422）颗粒的NdBa2Cu3Oy（Nd123）块状超导体。这样生长的准单晶的尺寸约为1cm×1cm×1cm。结果表明，Nd422颗粒以与故意添加的Y211颗粒在Y123相基质中的分布相似的方式均匀地分布在Nd123相基质中。在氧气气氛中经过后退火的样品的超导转变温度Tc为94K。在电场为77 K和1 T时，确定的临界电流密度J（c）为45 000 A / cm（2）。平行于样品的c轴施加。据我们所知，到目前为止，据报道，在熔融织构的Nd123大块超导体中，J（c）值最高，准单晶的尺寸最大。 [参考：14]

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