Improvement of critical current density in the bronze-processed Nb3Sn superconductor

被引：0

作者：

Miyazaki, T ^{[1
]}

Matsukura, N ^{[1
]}

Miyatake, T ^{[1
]}

Shimada, M ^{[1
]}

Takabatake, K ^{[1
]}

Itoh, K ^{[1
]}

Kiyoshi, T ^{[1
]}

Sato, A ^{[1
]}

Inoue, K ^{[1
]}

Wada, H ^{[1
]}

机构：

[1] Kobe Steel Ltd, Kobe, Hyogo 65122, Japan

来源：

ADVANCES IN CRYOGENIC ENGINEERING MATERIALS, VOL 44, PTS A AND B | 1998年 / 44卷

关键词：

D O I：

暂无

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The superconductors with bronze matrix of Cu-15wt%Sn-0.3wt%Ti were fabricated on a commercial scale. The number of filaments and Cu to non Cu ratio of the conductors were 25099 and 0.3, respectively. A non Cu Jc of 980 A/mm(2) at 12 T, 4.2 K was obtained for a conductor with a round cross section in diameter of 0.7 mm. A rectangular shaped conductor, i.e. 1.75 mm x 3.50 mm, showed a non Cu Jc of 133 A/mm(2) at 21 T and 1.8 K, corresponding to a critical current of 620 A. The dependence of non Cu Jc on heat treatment conditions is also reported. These characteristics are considered with results from microscopic observations and relations with upper critical fields based on the pinning properties.

引用

页码：943 / 950

页数：8

共 7 条

[1]

Hansen M., 1958, CONSTITUTION BINARY, P633

[2]

Inoue K., 1997, Proceedings of the Sixteenth International Cryogenic Engineering Conference/International Cryogenic Materials Conference, P1103

[3]

Itoh K., 1997, Proceedings of the Sixteenth International Cryogenic Engineering Conference/International Cryogenic Materials Conference, P1735

[4] SCALING LAWS FOR FLUX PINNING IN HARD SUPERCONDUCTORS [J].

KRAMER, EJ .

JOURNAL OF APPLIED PHYSICS, 1973, 44 (03) :1360-1370

[5]

MIYAZAKI T, 1997, CEC ICMC PORTL

[6]

Miyazaki T., 1996, ADV CRYOGEN ENG, P1385

[7]

TOYOTA N, 1984, CRYOGENIC ENG, V19, P319

← 1 →