International Round Robin Test for Critical Current Measurement of RE-Ba-Cu-O Superconducting Tapes

被引：10

作者：

Nishijima, Gen ^{[1
]}

Osamura, Kozo ^{[2
]}

Nagaishi, Tatsuoki ^{[3
]}

Fukushima, Toru ^{[4
,5
]}

Iijima, Yasuhiro ^{[6
]}

Koizumi, Tsutomu ^{[7
]}

Zhang, Yifei ^{[5
]}

Breschi, Marco ^{[8
]}

Chaud, Xavier ^{[9
]}

Shin, Hyung-Seop ^{[10
]}

Kiss, Takanobu ^{[11
]}

机构：

[1] Natl Inst Mat Sci, Tsukuba, Ibaraki 3050003, Japan

[2] Res Inst Appl Sci, Kyoto 6068202, Japan

[3] Sumitomo Elect Ind Ltd, Osaka 5540024, Japan

[4] Furukawa Elect Corp Ltd, Ichihara, Chiba 2908555, Japan

[5] SuperPower Inc, Schenectady, NY 12304 USA

[6] Fujikura Ltd, Sakura 2858550, Japan

[7] SWCC Showa Cable Syst Co Ltd, Sagamihara, Kanagawa 2520253, Japan

[8] Univ Bologna, I-40136 Bologna, Italy

[9] Lab Natl Champs Magnet Intenses, F-38042 Grenoble, France

[10] Andong Natl Univ, Andong 760749, South Korea

[11] Kyushu Univ, Fukuoka 8190395, Japan

来源：

IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY | 2018年 / 28卷 / 04期

关键词：

Critical current; international RRT; liquid nitrogen; REBCO; VAMAS;

D O I：

10.1109/TASC.2018.2801329

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

VAMAS TWA 16 promoted an international round robin test (RRT) on critical current (I-c) measurement of RE-Ba-Cu-O (REBCO; RE = rare earth) superconductors to establish the transport Ic measurement method in liquid nitrogen bath without an external magnetic field. Ten laboratories from five countries participated in the RRT and tested commercially available REBCO superconductors. I-c and measurement conditions were reported. In parallel, intrinsic I-c nonuniformity of the superconductors were evaluated by reel-to-reel scanning Hall-probe microscopy for 10-m conductors. Statistical analyses of I-c provided uncertainty of the measurement method. Combined standard uncertainty was analyzed considering the intrinsic nonuniformity of I-c. The analysis indicated that the intrinsic nonuniformity has the largest contribution to the uncertainty of I-c.

引用

页数：5

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