原子能科学技术2001，Vol.35Issue(2)：116-120,5.
准单畴YBCO超导体工艺性能研究和微观分析
Study on the Technology and Microstructural Analysis for Quasi-single Crystal Domain Melt-textured YBCO Bulk Superconductor
沙建军 1郁金南 1郁刚 1韩华 1罗金汉1
作者信息
- 1. 中国原子能科学研究院 反应堆工程研究设计所，北京 102413
- 折叠
摘要
Abstract
The paper describes the method of melt-textured growth(MTG) witha top-seeded technique to prepare the quasi-single crystal domain YBCO bulk materials with various Y-211 particle contents. The obtained specimens have high density and good mechanical toughness. The JC of specimens reaches 1.23×106 A/cm2 under 0.6 T at 30 K and 1.35×104 A/cm2 under 2 T at 70 K. The SEM observation of specimens indicates that Y-211 particles can improve the quality of melt-textured YBCO superconductor. Combining the microstructures with JC measurements shows that the smaller the particle size and the more homogeneous the particle distribution is, the better the pinning effectiveness is.关键词
准单畴/熔融织构YBCO超导体/临界电流密度/钉扎中心分类
数理科学引用本文复制引用
沙建军,郁金南,郁刚,韩华,罗金汉..准单畴YBCO超导体工艺性能研究和微观分析[J].原子能科学技术,2001,35(2):116-120,5.
