Investigation of superconducting properties of Nb3Sn strands by internal tin process for ITER

C. G. Li; C. J. Xiao; J. Q. Guan; X. G. Sun; J. W. Liu; X. H. Liu; Y. Feng; P. X. Zhang; J. S. Li

doi:10.1109/TASC.2010.2042440

Investigation of superconducting properties of Nb₃Sn strands by internal tin process for ITER

C. G. Li, C. J. Xiao, J. Q. Guan, X. G. Sun, J. W. Liu, X. H. Liu, Y. Feng, P. X. Zhang, J. S. Li

School of Materials Sience and Engineering

Research output: Contribution to journal › Article › peer-review

12 Scopus citations

Abstract

The multifilamentary Nb₃Sn strands with a diameter of 0.82 mm and different local area ratios of Nb to copper (LAR) have been successfully fabricated by an internal tin process in Western Superconducting Technologies Co., Ltd. (WST). The heat treatments have been completed in a vacuum condition. The Critical Current (I_c) and hysteresis loss of the strands are measured after different heat treatments according to ITER requirement. The maximum I_c is about 285 A (4.22 K, 12 T, 0.1 μV/cm ) and the hysteresis loss is 290∼ 410 mJ/cm³ (4.22 K, ±3 T) per strand unit volume. In this paper, the I_c and the hysteresis loss of the strands with different LARs and different heat treatments are investigated. It is a reference for fabricating the qualified Nb₃Sn strands for ITER project in large scale in WST.

Original language	English
Article number	5439724
Pages (from-to)	1484-1487
Number of pages	4
Journal	IEEE Transactions on Applied Superconductivity
Volume	20
Issue number	3
DOIs	https://doi.org/10.1109/TASC.2010.2042440
State	Published - Jun 2010

Keywords

Critical current
Heat treatment
Hysteresis loss
LAR
NbSn strands

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title = "Investigation of superconducting properties of Nb3Sn strands by internal tin process for ITER",

abstract = "The multifilamentary Nb3Sn strands with a diameter of 0.82 mm and different local area ratios of Nb to copper (LAR) have been successfully fabricated by an internal tin process in Western Superconducting Technologies Co., Ltd. (WST). The heat treatments have been completed in a vacuum condition. The Critical Current (Ic) and hysteresis loss of the strands are measured after different heat treatments according to ITER requirement. The maximum Ic is about 285 A (4.22 K, 12 T, 0.1 μV/cm ) and the hysteresis loss is 290∼ 410 mJ/cm3 (4.22 K, ±3 T) per strand unit volume. In this paper, the Ic and the hysteresis loss of the strands with different LARs and different heat treatments are investigated. It is a reference for fabricating the qualified Nb3Sn strands for ITER project in large scale in WST.",

keywords = "Critical current, Heat treatment, Hysteresis loss, LAR, NbSn strands",

author = "Li, {C. G.} and Xiao, {C. J.} and Guan, {J. Q.} and Sun, {X. G.} and Liu, {J. W.} and Liu, {X. H.} and Y. Feng and Zhang, {P. X.} and Li, {J. S.}",

year = "2010",

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AU - Li, C. G.

AU - Xiao, C. J.

AU - Guan, J. Q.

AU - Sun, X. G.

AU - Liu, J. W.

AU - Liu, X. H.

AU - Feng, Y.

AU - Zhang, P. X.

AU - Li, J. S.

PY - 2010/6

Y1 - 2010/6

N2 - The multifilamentary Nb3Sn strands with a diameter of 0.82 mm and different local area ratios of Nb to copper (LAR) have been successfully fabricated by an internal tin process in Western Superconducting Technologies Co., Ltd. (WST). The heat treatments have been completed in a vacuum condition. The Critical Current (Ic) and hysteresis loss of the strands are measured after different heat treatments according to ITER requirement. The maximum Ic is about 285 A (4.22 K, 12 T, 0.1 μV/cm ) and the hysteresis loss is 290∼ 410 mJ/cm3 (4.22 K, ±3 T) per strand unit volume. In this paper, the Ic and the hysteresis loss of the strands with different LARs and different heat treatments are investigated. It is a reference for fabricating the qualified Nb3Sn strands for ITER project in large scale in WST.

AB - The multifilamentary Nb3Sn strands with a diameter of 0.82 mm and different local area ratios of Nb to copper (LAR) have been successfully fabricated by an internal tin process in Western Superconducting Technologies Co., Ltd. (WST). The heat treatments have been completed in a vacuum condition. The Critical Current (Ic) and hysteresis loss of the strands are measured after different heat treatments according to ITER requirement. The maximum Ic is about 285 A (4.22 K, 12 T, 0.1 μV/cm ) and the hysteresis loss is 290∼ 410 mJ/cm3 (4.22 K, ±3 T) per strand unit volume. In this paper, the Ic and the hysteresis loss of the strands with different LARs and different heat treatments are investigated. It is a reference for fabricating the qualified Nb3Sn strands for ITER project in large scale in WST.

KW - Critical current

KW - Heat treatment

KW - Hysteresis loss

KW - LAR

KW - NbSn strands

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JO - IEEE Transactions on Applied Superconductivity

JF - IEEE Transactions on Applied Superconductivity

IS - 3

M1 - 5439724

ER -

Investigation of superconducting properties of Nb₃Sn strands by internal tin process for ITER

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Keywords

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