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Insertion versus Growth of Magnetic Nanoparticles in MgB2 Superconducting Composites

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Abstract:

MgB2-based superconducting composites with magnetic nanoparticles were fabricated by spark plasma sintering technique. Two methods have been used to create nanoparticles within MgB2 matrix: i) direct insertion of passivated magnetic nanoparticles; ii) growth of magnetic nanoparticles by thermolysis of polymers or metallo-organic precursors. These composites display an enhanced critical current density due to the additional magnetic pinning generated by the magnetic interaction with the flux lines.

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Periodical:

Advanced Materials Research (Volumes 941-944)

Pages:

458-461

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.941-944.458

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Online since:

June 2014

Authors:

Viorel Sandu*, Gheorghe Aldica, Petre Badica, Andrei Kuncser, Yuichiro Hayasaka

Keywords:

Critical Current Density, Magnetic Nanoparticles, MgB2, Pinning Regimes, Spark Plasma Sintering (SPS), Superconducting Composite

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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References

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