Recent progress in production of infiltration-growth and melt-growth processed bulk (RE)Ba.sub.2./sub.Cu.sub.3./sub.O.sub.y./sub.

0539052 - FZÚ 2021 RIV GB eng J - Článek v odborném periodiku
Muralidhar, M. - Sunsanee, P. - Takemura, K. - Srikanth, A.S. - Jirsa, Miloš - Rao, M.S.R. - Oka, T. - Sakai, N. - Murakami, M.
Recent progress in production of infiltration-growth and melt-growth processed bulk (RE)Ba₂Cu₃O_y.
Superconductor Science and Technology. Roč. 33, č. 7 (2020), s. 1-11, č. článku 074002. ISSN 0953-2048. E-ISSN 1361-6668
Institucionální podpora: RVO:68378271
Klíčová slova: infiltration growth * mixed RE-123 * critical current density * trapped field
Obor OECD: Condensed matter physics (including formerly solid state physics, supercond.)
Impakt faktor: 3.219, rok: 2020
Způsob publikování: Open access

Novel methods are necessary to further increase the critical current density (Jc) and uniformity of (RE)Ba2Cu3Oy (RE-123, RE—rare earth element) materials. In this contribution we address several issues of infiltration growth (IG) and melt -growth (MG) processing of RE-123 bulks and show recent progress: (i) optimization of 211 composition in IG -processed mixed YGd system type for the production of good -performance RE-123 bulks (RE: YGd), (ii) optimization of the thermal profile in IG processing of a mixed YEr-123 system for producing large bulks, and (iii) preparation of sharp-edge refined RE-211 -phase particles by means of a high -energy ultra-sonication to improve performance of MG-processed Y-123. All products were studied by means of SQUID, SEM, TEM, and trapped field measurements at liquid nitrogen temperature.
Trvalý link: http://hdl.handle.net/11104/0316806