Infiltration growth processing of single grain (Gd,Dy)BCO bulk superconductors: optimization of liquid phase mass and characterization of physical properties

0505524 - FZÚ 2020 RIV US eng J - Článek v odborném periodiku
Naik, S.P.K. - Muralidhar, M. - Takemura, K. - Jirsa, Miloš - Murakami, M.
Infiltration growth processing of single grain (Gd,Dy)BCO bulk superconductors: optimization of liquid phase mass and characterization of physical properties.
Journal of Applied Physics. Roč. 125, č. 9 (2019), s. 1-12, č. článku 093907. ISSN 0021-8979. E-ISSN 1089-7550
Grant CEP: GA ČR GB14-36566G
Institucionální podpora: RVO:68378271
Klíčová slova: seeded infiltration * crystal-growth * flux * particles
Obor OECD: Condensed matter physics (including formerly solid state physics, supercond.)
Impakt faktor: 2.286, rok: 2019
Způsob publikování: Omezený přístup
https://doi.org/10.1063/1.5082665

Infiltration of an optimal amount of liquid (Ba3Cu5O8 denoted further as “035”) for efficient peritectic growth is a primary requirement in the infiltration growth (IG) processing of high-quality REBa2Cu3O7-δ products. Recently, we optimized the Dy content and the time-temperature schedules for top-seeded IG processing of (Gd,Dy)Ba2Cu3O7–δ [(Gd,Dy)BCO] single grain superconductors. Aiming to fabricate larger sized (Gd,Dy)BCO (80wt.% Gd2BaCuO5 and 20wt.% of Dy2BaCuO5) single grain bulk superconductors, different liquid phase [LP=ErBa2Cu3O7–δ (Er-123) and mixed with 035] sources were employed and the LP content was optimized by varying its mass. The increase in Er-123+035 mass assured an abundant amount of liquids for peritectic reaction. The Er-123+035 ratio of 1:1.4 was found to be optimum. The optimized liquid phase infiltration enabled an effective control of (Gd,Dy)2BaCuO5 (211) secondary phase size and content in final microstructures.
Trvalý link: http://hdl.handle.net/11104/0297012