| 熔融织构Y1-xNdxBa2Cu3O7-y的磁通钉扎 |
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| 引用本文： | 邢玉涛,王永忠,乔桂文. 熔融织构Y1-xNdxBa2Cu3O7-y的磁通钉扎[J]. 材料研究学报, 2001, 15(1): 117-119 |
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| 作者姓名： | 邢玉涛 王永忠 乔桂文 |
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| 作者单位： | 中国科学院金属研究所 |
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| 基金项目： | 国家高技术研究发展计划(863计划)，863-CD010107， |
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| 摘 要： | 制备了Y1-xNdxBa2Cu3O7-Y熔融织构超导样品，X射线衍射分析表明，样品具有较高的织构度，样品中晶粒的取向为（001）方向， 钕均匀地替代了钇，并且对样品的晶体结构影响不大，样品的不可逆温度Tp随外场的变化说明，少量钕替代钇可以提高YBCO超导材料的磁通钉扎能力，在高温超导体中引入和样品本身结构的第二相可能是一种比较有效的增强高温超导材料磁通钉扎能力的方法。
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| 关 键 词： | 高温超导体 不可逆温度 磁通钉扎 熔融织构 |
| 文章编号： | 1005-3093(2001)01-0117-03 |
| 修稿时间： | 2000-10-25 |
FLUX PINNING IN MELT-TEXTURED Y1-xNdxBa2Cu3O7-y SUPERCONDUCTORS |
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| XING Yutao,WANG Yongzhong,QIAO Guiwen. FLUX PINNING IN MELT-TEXTURED Y1-xNdxBa2Cu3O7-y SUPERCONDUCTORS[J]. Chinese Journal of Materials Research, 2001, 15(1): 117-119 |
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| Authors: | XING Yutao WANG Yongzhong QIAO Guiwen |
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| Abstract: | The textured Y1-xNdxBa2Cu3O7-y superconducting samples have been fabricated by the modified MTG method. XRD analysis shows that the samples have perfect orientation along the (001) direction. Nd substituted Y in the samples homogeneously and it has little effects on the samples' microstructures. The field dependence of the irreversibility temperature in various MTG Y1-xNdxBa2Cu3O7-y samples at 5k shows that small amount of Nd substitution for Y can enhance the flux pinning of these samples. So introducing some second phase, which has the same structure with the matrix, into the sample may be an effective way to improve the flux pinning in YBCO superconductors. |
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| Keywords: | Y_(1-x)Nd_xBa_2Cu_3O_(7-y) superconducto irreversibility temperature flux pinning |
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