Studies on Development of MgB2 Superconductor with Improved In-Field Critical Current Density

Krishnankutty Vinod; Syamaprasad Upendran

doi:10.4028/www.scientific.net/AMR.117.63

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Studies on Development of MgB₂ Superconductor with Improved In-Field Critical Current Density
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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 117Studies on Development of MgB2 Superconductor with...

Studies on Development of MgB₂ Superconductor with Improved In-Field Critical Current Density

Abstract:

The present study focuses on the preparation of good quality MgB2 superconductor in bulk, wire/tape forms and on the improvement of in-field critical current density [JC(H)]. MgB2 bulk superconductor was prepared by a simple Powder-In-Sealed-Tube (PIST) method and MgB2 wires and tapes were prepared by the Powder-In-Tube (PIT) method. A novel electrical self-heating method was introduced for the preparation of Fe sheathed MgB2 wires and tapes. Burned Rice Husk (BRH), an inexpensive natural material is found to be one of the best additives for enhancing the in-field critical current density of MgB2. By selecting suitable combinations of additives a significant enhancement of the critical current density by 1-2 orders of magnitude were achieved for fields > 5 T, at 5-15 K.

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Periodical:

Advanced Materials Research (Volume 117)

Pages:

63-68

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.117.63

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Online since:

June 2010

Authors:

Krishnankutty Vinod, Syamaprasad Upendran

Keywords:

Critical Current Density, MgB₂ Superconductor, Powder-in-Tube

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