Abstract
The relationship between the particle size of Gd211 powder in the precursor and the particle size of Gd211 inclusions in Gd-Ba-Cu-O bulk has been investigated. Gd211 starting powders with various diameters were prepared by the calcination of Gd2O3, BaO2 and CuO powders at different temperatures between 800 and 1000°C. The particle size of Gd211 in the melt-grown bulk was proportional to the particle size of the initial Gd211 powder. In conclusion, the employment of fine Gd211 powder led to a size reduction of 211 particles in the bulk, while largely enhancing the Jc values in low magnetic fields. A large Gd-Ba-Cu-O/Ag bulk sample, 32 mm in diameter, could also be fabricated by the hot-seeding method. The maximum trapped field value revealed 1.5 T at 77 K.
| Original language | English |
|---|---|
| Pages (from-to) | 778-784 |
| Number of pages | 7 |
| Journal | Superconductor Science and Technology |
| Volume | 13 |
| Issue number | 6 |
| DOIs | |
| Publication status | Published - 2000 Jun |
| Externally published | Yes |
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ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Physics and Astronomy (miscellaneous)
- Condensed Matter Physics
Cite this
Influence of the size of Gd211 starting powder on the critical current density of Gd-Ba-Cu-O bulk superconductor. / Nariki, S.; Seo, S. J.; Sakai, Naomichi; Murakami, Masato.
In: Superconductor Science and Technology, Vol. 13, No. 6, 06.2000, p. 778-784.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Influence of the size of Gd211 starting powder on the critical current density of Gd-Ba-Cu-O bulk superconductor
AU - Nariki, S.
AU - Seo, S. J.
AU - Sakai, Naomichi
AU - Murakami, Masato
PY - 2000/6
Y1 - 2000/6
N2 - The relationship between the particle size of Gd211 powder in the precursor and the particle size of Gd211 inclusions in Gd-Ba-Cu-O bulk has been investigated. Gd211 starting powders with various diameters were prepared by the calcination of Gd2O3, BaO2 and CuO powders at different temperatures between 800 and 1000°C. The particle size of Gd211 in the melt-grown bulk was proportional to the particle size of the initial Gd211 powder. In conclusion, the employment of fine Gd211 powder led to a size reduction of 211 particles in the bulk, while largely enhancing the Jc values in low magnetic fields. A large Gd-Ba-Cu-O/Ag bulk sample, 32 mm in diameter, could also be fabricated by the hot-seeding method. The maximum trapped field value revealed 1.5 T at 77 K.
AB - The relationship between the particle size of Gd211 powder in the precursor and the particle size of Gd211 inclusions in Gd-Ba-Cu-O bulk has been investigated. Gd211 starting powders with various diameters were prepared by the calcination of Gd2O3, BaO2 and CuO powders at different temperatures between 800 and 1000°C. The particle size of Gd211 in the melt-grown bulk was proportional to the particle size of the initial Gd211 powder. In conclusion, the employment of fine Gd211 powder led to a size reduction of 211 particles in the bulk, while largely enhancing the Jc values in low magnetic fields. A large Gd-Ba-Cu-O/Ag bulk sample, 32 mm in diameter, could also be fabricated by the hot-seeding method. The maximum trapped field value revealed 1.5 T at 77 K.
UR - http://www.scopus.com/inward/record.url?scp=0033682809&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0033682809&partnerID=8YFLogxK
U2 - 10.1088/0953-2048/13/6/330
DO - 10.1088/0953-2048/13/6/330
M3 - Article
AN - SCOPUS:0033682809
VL - 13
SP - 778
EP - 784
JO - Superconductor Science and Technology
JF - Superconductor Science and Technology
SN - 0953-2048
IS - 6
ER -