CUED Publications database

Seeded infiltration and growth of bulk YBCO nano-composites

Babu, NH and Shi, Y-H and Dennis, AR and Pathak, SK and Cardwell, DA (2011) Seeded infiltration and growth of bulk YBCO nano-composites. IEEE Transactions on Applied Superconductivity, 21. pp. 2698-2701. ISSN 1051-8223

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Abstract

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 Y2Ba 4CuWOy nano-scale inclusions into bulk superconductors processed by the seeded infiltration growth process. Critical current density, Jc, in excess of 105 A/cm2 at 77 K in self-field is observed for samples containing Y2Ba 4CuWOy. © 2011 IEEE.

Item Type: Article
Uncontrolled Keywords: Flux pinning High temperature superconductors Melt-textured superconductors Nano-composites
Subjects: UNSPECIFIED
Divisions: Div C > Materials Engineering
Depositing User: Cron Job
Date Deposited: 07 Mar 2014 12:09
Last Modified: 08 Dec 2014 02:31
DOI: 10.1109/TASC.2010.2101574