CUED Publications database

Seeded infiltration and growth of bulk YBCO nano-composites

Babu, NH and Shi, YH 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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The seeded infiltration and growth (SIG) technique offers near-net shape processing of bulk superconductors with significant improvement in reduced Y 2 BaCuO 5 (Y-211) inclusion size, reduced shrinkage, reduced porosity and improved current density compared to samples fabricated by top seeded melt growth (TSMG). Y 2 Ba 4 CuMO y phases where M=Nb, Mo, W, Ta, etc., have been shown to form nano-scale inclusions in the YBa 2 Cu 3 O y (Y-123) phase matrix and to contribute to enhanced magnetic flux pinning in these materials. In this paper, we describe the introduction of Y 2 Ba 4 CuWO y 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 Y 2 Ba 4 CuWO y . © 2011 IEEE.

Item Type: Article
Divisions: Div C > Materials Engineering
Depositing User: Cron Job
Date Deposited: 17 Jul 2017 19:26
Last Modified: 22 May 2018 07:54