Densification of MgB2 cores in iron-clad tapes

H. Fang; Y. Y. Xue; Y. X. Zhou; A. Baikalov; K. Salama

doi:10.1088/0953-2048/17/7/L01

Densification of MgB₂ cores in iron-clad tapes

H. Fang, Y. Y. Xue, Y. X. Zhou, A. Baikalov, K. Salama

Diagnostic Radiology

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19 Scopus citations

Abstract

A fabrication process of iron-clad MgB₂ superconducting tapes was developed by using a nano-sized precursor and highly deformed iron sheath. Quenching experiments demonstrate that the precursor fully reacts and forms MgB₂ under a high pressure of 600 MPa provided by the deformed iron sheath. Very good grain connections as well as a high core density of 2.55 g cm^-3 were therefore obtained. High 20 K J_c of 3.1 × 10⁵, 1.6 × 10⁵ and 4.9 × 10⁴ A cm^-2 at self-field, 1 and 2 T, respectively, were acquired. The results suggest that using a nano-sized precursor approach to fabricate MgB ₂ superconducting tape is a very promising process.

Original language	English (US)
Pages (from-to)	L27-L29
Journal	Superconductor Science and Technology
Volume	17
Issue number	7
DOIs	https://doi.org/10.1088/0953-2048/17/7/L01
State	Published - Jul 2004

ASJC Scopus subject areas

Ceramics and Composites
Condensed Matter Physics
Metals and Alloys
Electrical and Electronic Engineering
Materials Chemistry

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10.1088/0953-2048/17/7/L01

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abstract = "A fabrication process of iron-clad MgB2 superconducting tapes was developed by using a nano-sized precursor and highly deformed iron sheath. Quenching experiments demonstrate that the precursor fully reacts and forms MgB2 under a high pressure of 600 MPa provided by the deformed iron sheath. Very good grain connections as well as a high core density of 2.55 g cm-3 were therefore obtained. High 20 K Jc of 3.1 × 105, 1.6 × 105 and 4.9 × 104 A cm-2 at self-field, 1 and 2 T, respectively, were acquired. The results suggest that using a nano-sized precursor approach to fabricate MgB 2 superconducting tape is a very promising process.",

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AU - Fang, H.

AU - Xue, Y. Y.

AU - Zhou, Y. X.

AU - Baikalov, A.

AU - Salama, K.

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AB - A fabrication process of iron-clad MgB2 superconducting tapes was developed by using a nano-sized precursor and highly deformed iron sheath. Quenching experiments demonstrate that the precursor fully reacts and forms MgB2 under a high pressure of 600 MPa provided by the deformed iron sheath. Very good grain connections as well as a high core density of 2.55 g cm-3 were therefore obtained. High 20 K Jc of 3.1 × 105, 1.6 × 105 and 4.9 × 104 A cm-2 at self-field, 1 and 2 T, respectively, were acquired. The results suggest that using a nano-sized precursor approach to fabricate MgB 2 superconducting tape is a very promising process.

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Densification of MgB₂ cores in iron-clad tapes

Abstract

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