抄録
Large single-grain RE-Ba-Cu-O (RE: rare-earth elements) superconductors can trap large magnetic fields over several tesla, and thus can be used as quasi-permanent magnets, generating fields much higher than those of conventional permanent magnets. However, the maximum trapped field is essentially limited by the mechanical properties of bulk superconductors, since a large electromagnetic force acts on the bulks when they trap large fields. The stress produced by refrigeration also causes cracking. We have recently found that epoxy resin can penetrate into bulk superconductors under appropriate conditions. Microstructural observations revealed that microcracks as well as macrocracks or porosities can be impregnated with epoxy resin, which greatly improves the mechanical properties of bulk RE-Ba-Cu-O superconductors and thus results in the improvement of their field-trapping capability.
| 元の言語 | English |
|---|---|
| ページ（範囲） | 722-724 |
| ページ数 | 3 |
| ジャーナル | Superconductor Science and Technology |
| 巻 | 13 |
| 発行部数 | 6 |
| DOI | |
| 出版物ステータス | Published - 2000 6 |
| 外部発表 | Yes |
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ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Physics and Astronomy (miscellaneous)
- Condensed Matter Physics
これを引用
Improvement of the mechanical properties of bulk superconductors with resin impregnation. / Tomita, M.; Murakami, Masato.
：: Superconductor Science and Technology, 巻 13, 番号 6, 06.2000, p. 722-724.研究成果: Article
}
TY - JOUR
T1 - Improvement of the mechanical properties of bulk superconductors with resin impregnation
AU - Tomita, M.
AU - Murakami, Masato
PY - 2000/6
Y1 - 2000/6
N2 - Large single-grain RE-Ba-Cu-O (RE: rare-earth elements) superconductors can trap large magnetic fields over several tesla, and thus can be used as quasi-permanent magnets, generating fields much higher than those of conventional permanent magnets. However, the maximum trapped field is essentially limited by the mechanical properties of bulk superconductors, since a large electromagnetic force acts on the bulks when they trap large fields. The stress produced by refrigeration also causes cracking. We have recently found that epoxy resin can penetrate into bulk superconductors under appropriate conditions. Microstructural observations revealed that microcracks as well as macrocracks or porosities can be impregnated with epoxy resin, which greatly improves the mechanical properties of bulk RE-Ba-Cu-O superconductors and thus results in the improvement of their field-trapping capability.
AB - Large single-grain RE-Ba-Cu-O (RE: rare-earth elements) superconductors can trap large magnetic fields over several tesla, and thus can be used as quasi-permanent magnets, generating fields much higher than those of conventional permanent magnets. However, the maximum trapped field is essentially limited by the mechanical properties of bulk superconductors, since a large electromagnetic force acts on the bulks when they trap large fields. The stress produced by refrigeration also causes cracking. We have recently found that epoxy resin can penetrate into bulk superconductors under appropriate conditions. Microstructural observations revealed that microcracks as well as macrocracks or porosities can be impregnated with epoxy resin, which greatly improves the mechanical properties of bulk RE-Ba-Cu-O superconductors and thus results in the improvement of their field-trapping capability.
UR - http://www.scopus.com/inward/record.url?scp=0033690482&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0033690482&partnerID=8YFLogxK
U2 - 10.1088/0953-2048/13/6/318
DO - 10.1088/0953-2048/13/6/318
M3 - Article
AN - SCOPUS:0033690482
VL - 13
SP - 722
EP - 724
JO - Superconductor Science and Technology
JF - Superconductor Science and Technology
SN - 0953-2048
IS - 6
ER -