Rational design of MgB2 conductors toward practical applications

Authors

Dipakkumar Patel, University of WollongongFollow
Md Shahriar Hossain, University of WollongongFollow
Ashkan Motaman, University of WollongongFollow
Shaon Barua, University of WollongongFollow
Mohammed Shahabuddin, King Saud University
Jung Ho Kim, University of WollongongFollow

RIS ID

90314

Publication Details

Patel, D., Hossain, M. Al., Motaman, A., Barua, S., Shahabuddin, M. & Kim, J. (2014). Rational design of MgB₂ conductors toward practical applications. Cryogenics, 63 160-165.

Abstract

We report the research progress that has been made on developing rational MgB₂ superconducting conductors toward practical applications. Owing to the poor performance of the critical current density (J_c) of bare MgB₂, various techniques have been developed to overcome this obstacle. Among these, chemical doping has proved to be the most effective way to enhance the superconducting properties, such as J_c and the irreversibility field (B_irr). More than a hundred different forms of dopants have been investigated over the past 13 years. Among these, the most effective dopants have been identified to be silicon carbide, carbon, and malic acid. The best results, B_irr of 22 T and J_c of 40,000 A cm^-2 at 4.2 K and 10 T, have been reported for malic acid treated MgB₂ conductors, which have matched the benchmark performance of commercial low temperature superconductor wire such as Nb-Ti. This work will review and discuss the progress on MgB₂ conductor development over the past few years at the University of Wollongong and Hyper Tech Research, Inc.

Grant Number

ARC/FT110100170

Additional Grant Number

http://purl.org/au-research/grants/arc/FT110100170