Engineered Pinning Landscapes for Enhanced 2G Coil Wire

被引：43

作者：

Rupich, Martin W. ^{[1
]}

Sathyamurthy, Srivatsan ^{[1
]}

Fleshler, Steven ^{[1
]}

Li, Qiang ^{[2
]}

Solovyov, Vyacheslav ^{[2
]}

Ozaki, Toshinori ^{[2
]}

Welp, Ulrich ^{[3
]}

Kwok, Wai-Kwong ^{[3
]}

Leroux, Maxime ^{[3
]}

Koshelev, Alexei E. ^{[3
]}

Miller, Dean J. ^{[3
]}

Kihlstrom, Karen ^{[3
]}

Civale, Leonardo ^{[4
]}

Eley, Serena ^{[4
]}

Kayani, Asghar ^{[5
]}

机构：

[1] Amer Superconductor Corp, Devens, MA 01434 USA

[2] Brookhaven Natl Lab, Upton, NY 11973 USA

[3] Argonne Natl Lab, 9700 S Cass Ave, Argonne, IL 60439 USA

[4] Los Alamos Natl Lab, Los Alamos, NM 87545 USA

[5] Western Michigan Univ, Kalamazoo, MI 49008 USA

来源：

IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY | 2016年 / 26卷 / 03期

关键词：

Critical current density; flux pinning; high-temperature superconductors; irradiation; roll-to-roll processing; FLUX-CREEP; TEMPERATURE; VORTICES;

D O I：

10.1109/TASC.2016.2542270

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：

We demonstrate a twofold increase in the in-field critical current of AMSC's standard 2G coil wire by irradiation with 18-MeV Au ions. The optimum pinning enhancement is achieved with a dose of 6 x 10(11) Au ions/cm(2). Although the 77 K, self-field critical current is reduced by about 35%, the in-field critical current (H//c) shows a significant enhancement between 4 and 50 K in fields > 1 T. The process was used for the roll-to-roll irradiation of AMSC's standard 46-mm-wide production coated conductor strips, which were further processed into standard copper laminated coil wire. The long-length wires show the same enhancement as attained with short static irradiated samples. The roll-to-roll irradiation process can be incorporated in the standard 2G wire manufacturing, with no modifications to the current process. The enhanced performance of the wire will benefit rotating machine and magnet applications.

引用

页数：4

共 15 条

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