Enhancement of critical current density of liquid-infiltration-processed Y-Ba-Cu-O bulk superconductors using milled Y2BaCuO5 powder
DC Field | Value | Language |
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dc.contributor.author | Mahmood, Asif | - |
dc.contributor.author | Chu, Yong Sik | - |
dc.contributor.author | Sung, Tae Hyun | - |
dc.date.accessioned | 2022-07-16T16:02:52Z | - |
dc.date.available | 2022-07-16T16:02:52Z | - |
dc.date.created | 2021-05-12 | - |
dc.date.issued | 2012-04 | - |
dc.identifier.issn | 0953-2048 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/165937 | - |
dc.description.abstract | The size effects of a precursor Y2BaCuO5 (Y211) powder on the microstructure and critical current density (J(c)) of liquid infiltration growth (LIG)-processed YBa2Cu3O7-y (Y123) bulk superconductors were investigated in terms of milling time (t). Y211 powders were attrition-milled for 0-10 h in 2 h increments at a fixed rotation speed of 400 rpm. Y211 pre-forms were made by pelletizing the milled Y211 powders followed by subsequent sintering, after which an LIG process with top seeding was applied to the Y211/Ba3Cu5O8 (Y035) pre-forms. Spherical pores were observed in all LIG-processed Y123 samples and the pore density gradually decreased as t increased from 0 to 8 h. In addition to the reduced pore density, the Y211 particle size in the final Y123 products also decreased with increasing t. As t increased further to 10 h, unexpected Y211 coarsening and large pore evolutions were observed. The magnetic susceptibility-temperature curves showed that the onset superconducting transition temperature (T-c,T- onset) of all samples was the same (91.5 K), but the transition width became greater as t increased. The J(c) of the Y123 bulk superconductors fabricated in this study was observed to correlate well with t of the Y211 precursor powder. The maximum J(c) of 1.0 x 10(5) A cm(-2) (at 77 K, 0 T) was achieved at t = 8 h, which is attributed to the reduction in pore density and Y211 particle size. The prolonged milling time of t = 10 h decreased the J(c) of the LIG-processed Y123 superconductor owing to the evolution of large pores and exaggerated Y211 growth. | - |
dc.language | 영어 | - |
dc.language.iso | en | - |
dc.publisher | IOP PUBLISHING LTD | - |
dc.title | Enhancement of critical current density of liquid-infiltration-processed Y-Ba-Cu-O bulk superconductors using milled Y2BaCuO5 powder | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Sung, Tae Hyun | - |
dc.identifier.doi | 10.1088/0953-2048/25/4/045008 | - |
dc.identifier.scopusid | 2-s2.0-84858690650 | - |
dc.identifier.wosid | 000301882700008 | - |
dc.identifier.bibliographicCitation | SUPERCONDUCTOR SCIENCE & TECHNOLOGY, v.25, no.4, pp.1 - 7 | - |
dc.relation.isPartOf | SUPERCONDUCTOR SCIENCE & TECHNOLOGY | - |
dc.citation.title | SUPERCONDUCTOR SCIENCE & TECHNOLOGY | - |
dc.citation.volume | 25 | - |
dc.citation.number | 4 | - |
dc.citation.startPage | 1 | - |
dc.citation.endPage | 7 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.isOpenAccess | N | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Physics | - |
dc.relation.journalWebOfScienceCategory | Physics, Applied | - |
dc.relation.journalWebOfScienceCategory | Physics, Condensed Matter | - |
dc.subject.keywordPlus | SEEDED INFILTRATION | - |
dc.subject.keywordPlus | CEO2 ADDITION | - |
dc.subject.keywordPlus | GROWTH | - |
dc.subject.keywordPlus | PARTICLES | - |
dc.subject.keywordPlus | SIZE | - |
dc.identifier.url | https://iopscience.iop.org/article/10.1088/0953-2048/25/4/045008 | - |
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