抄録
We have investigated the microstructure and flux-pinning properties of the (Nd0.33Eu0.33Gd0.33)Ba2Cu3Oy (NEG-123) bulk superconductors with the addition of different amounts of Eu2BaCuO5 (Eu-211) secondary phase particles using SEM, EPMA and magnetic measurements. The SEM study showed that the submicrometre secondary-phase particles were finely distributed in the NEG-123 matrix. Chemical analyses revealed that the matrix composition changed with the quantity of Eu-211 particles. The scaling study of the volume pinning forces showed that the peak position lies around h≈0.52, which indicates enhanced ΔTc-type pinning. For the NEG-123 sample with 20 mol% Eu-211 additions, a large critical current density (Jc) of 50 000 A cm-2 was achieved at 77 K and 2.7 T for the H∥c axis.
| 元の言語 | English |
|---|---|
| ページ（範囲） | 1587-1594 |
| ページ数 | 8 |
| ジャーナル | Superconductor Science and Technology |
| 巻 | 13 |
| 発行部数 | 12 |
| DOI | |
| 出版物ステータス | Published - 2000 12 |
| 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
Effect of Eu2BaCuO5 addition on the matrix composition and flux pinning in (Nd0.33Eu0.33Gd0.33)Ba2Cu3Oy superconductors. / Miryala, Muralidhar; Murakami, Masato.
：: Superconductor Science and Technology, 巻 13, 番号 12, 12.2000, p. 1587-1594.研究成果: Article
}
TY - JOUR
T1 - Effect of Eu2BaCuO5 addition on the matrix composition and flux pinning in (Nd0.33Eu0.33Gd0.33)Ba2Cu3Oy superconductors
AU - Miryala, Muralidhar
AU - Murakami, Masato
PY - 2000/12
Y1 - 2000/12
N2 - We have investigated the microstructure and flux-pinning properties of the (Nd0.33Eu0.33Gd0.33)Ba2Cu3Oy (NEG-123) bulk superconductors with the addition of different amounts of Eu2BaCuO5 (Eu-211) secondary phase particles using SEM, EPMA and magnetic measurements. The SEM study showed that the submicrometre secondary-phase particles were finely distributed in the NEG-123 matrix. Chemical analyses revealed that the matrix composition changed with the quantity of Eu-211 particles. The scaling study of the volume pinning forces showed that the peak position lies around h≈0.52, which indicates enhanced ΔTc-type pinning. For the NEG-123 sample with 20 mol% Eu-211 additions, a large critical current density (Jc) of 50 000 A cm-2 was achieved at 77 K and 2.7 T for the H∥c axis.
AB - We have investigated the microstructure and flux-pinning properties of the (Nd0.33Eu0.33Gd0.33)Ba2Cu3Oy (NEG-123) bulk superconductors with the addition of different amounts of Eu2BaCuO5 (Eu-211) secondary phase particles using SEM, EPMA and magnetic measurements. The SEM study showed that the submicrometre secondary-phase particles were finely distributed in the NEG-123 matrix. Chemical analyses revealed that the matrix composition changed with the quantity of Eu-211 particles. The scaling study of the volume pinning forces showed that the peak position lies around h≈0.52, which indicates enhanced ΔTc-type pinning. For the NEG-123 sample with 20 mol% Eu-211 additions, a large critical current density (Jc) of 50 000 A cm-2 was achieved at 77 K and 2.7 T for the H∥c axis.
UR - http://www.scopus.com/inward/record.url?scp=0034514613&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0034514613&partnerID=8YFLogxK
U2 - 10.1088/0953-2048/13/12/304
DO - 10.1088/0953-2048/13/12/304
M3 - Article
AN - SCOPUS:0034514613
VL - 13
SP - 1587
EP - 1594
JO - Superconductor Science and Technology
JF - Superconductor Science and Technology
SN - 0953-2048
IS - 12
ER -