Development of Fe-sheathed MgB2 wires and tapes for electric power applications

被引：12

作者：

Fang, H ^{[1
]}

Gijavanekar, P

Zhou, YX

Putman, PT

Salama, K

机构：

[1] Univ Houston, Dept Mech Engn, Houston, TX 77204 USA

[2] Univ Houston, Texas Ctr Superconduct & Adv Mat, Houston, TX 77204 USA

来源：

IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY | 2005年 / 15卷 / 02期

关键词：

critical current density; magnesium diboride; powder-in-tube; superconducting;

D O I：

10.1109/TASC.2005.848791

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：

Superconducting coils with different dimensions were manufactured via a wind-reaction process by using Fe-sheathed MgB2 wires, which were fabricated using the powder-in-tube method and ultra-fine starting precursors. Very good grain connectivity as well as high core density was obtained in Fe-sheathed wires and tapes. At 20 K and self-field, the critical current of the coil with ID 12 mm and 12 turns is 360 A, which is equivalent to the J(c) of 1.8 x 10(5) A/cm. At 6 Tesla external magnetic field and 4.2 K, the coil with ID 14 ern and 10 turns possesses the J(c) of 1 x 10(4) A/cm(2). In-field current carrying capability of MgB2 wires and tapes were further enhanced by Ti additive. These results demonstrate the potential of MgB2 superconducting wires and tapes for large-scale applications.

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收藏

页码：3200 / 3203

页数：4

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