Enhancement of mechanical strength in Y-Ba-Cu-O bulk superconductor through liquid binder addition

Conference proceedings article

Authors/Editors

Strategic Research Themes

No matching items found.

Publication Details

Author list: Ikeda Y., Umakoshi S., Wongsatanawarid A., Seki H., Murakami M.

Publication year: 2011

Volume number: 471

Issue number: 21-22

Start page: 846

End page: 849

Number of pages: 4

ISSN: 0921-4534

eISSN: 0921-4534

URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-80055013125&doi=10.1016%2fj.physc.2011.05.071&partnerID=40&md5=e61d3488dc84139ff48afb6b2466e7cf

Languages: English-Great Britain (EN-GB)

View in Web of Science | View on publisher site | View citing articles in Web of Science

Abstract

We have studied the effects of the liquid binder (polyvinyl alcohol) addition (0-10 wt%) on the mechanical properties of the green compacts and also on the superconducting properties of bulk Y-Ba-Cu-O superconductors of 20 mm diameter produced with the top-seeded melt growth (TSMG) process. The mechanical properties of the green compacts with binder addition were characterized with the compression tests, which revealed that mechanical strength increased dramatically with increasing the amount of the binder addition. The binder-added green compacts were then subjected to the TSMG process and oxygen annealing. The trapped field measurements showed that we could produce single-grain bulk Y-Ba-Cu-O samples with binder additions up to 8 wt% without any deterioration in the superconducting properties. ฉ 2011 Elsevier B.V. All rights reserved.

Keywords

Bulk Y-Ba-Cu-O, Liquid binder, Melt process