Seeded Infiltration and Growth of Bulk YBCO Nano-Composites

被引：17

作者：

Babu, N. Hari ^{[1
]}

Shi, Yun-Hua ^{[2
]}

Dennis, Anthony R. ^{[2
]}

Pathak, Sandeep K. ^{[2
]}

Cardwell, David A. ^{[2
]}

机构：

[1] Brunel Univ, BCAST, Uxbridge UB8 3PH, Middx, England

[2] Univ Cambridge, Dept Engn, Cambridge, England

来源：

IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY | 2011年 / 21卷 / 03期

基金：

英国工程与自然科学研究理事会;

关键词：

Flux pinning; high temperature superconductors; melt-textured superconductors; nano-composites; BA-CU-O; SINGLE-GRAIN; SUPERCONDUCTORS; URANIUM; MICROSTRUCTURE; IRRADIATION; FABRICATION; MAGNETS; FIELDS;

D O I：

10.1109/TASC.2010.2101574

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The seeded infiltration and growth (SIG) technique offers near-net shape processing of bulk superconductors with significant improvement in reduced Y2BaCuO5 (Y-211) inclusion size, reduced shrinkage, reduced porosity and improved current density compared to samples fabricated by top seeded melt growth (TSMG). Y2Ba4CuMOy phases where M = Nb, Mo, W, Ta, etc., have been shown to form nano-scale inclusions in the YBa2Cu3Oy (Y-123) phase matrix and to contribute to enhanced magnetic flux pinning in these materials. In this paper, we describe the introduction of Y2Ba4CuWOy nano-scale inclusions into bulk superconductors processed by the seeded infiltration growth process. Critical current density, J(c), in excess of 10(5) A/cm(2) at 77 K in self-field is observed for samples containing Y2Ba4CuWOy.

引用

页码：2698 / 2701

页数：4

共 20 条

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