Physics – Condensed Matter – Superconductivity
Scientific paper
2002-08-02
Physics
Condensed Matter
Superconductivity
8 pages, Paper presented at the Conference SATT11, Vietri S.M.(SA) Italy, March 19-22,2002
Scientific paper
Highly dense MgB2 policrystalline bulk materials, obtained by reactive liquid infiltration, have been characterized in their superconducting transport and magnetic properties in magnetic field and in a temperature range of interest for the MgB2 compound. The products have a granular morphology of composite nature and their overall density affects their properties. The irreversibility line, Bc1(T) values, magnetically measured current densities and the trapped magnetic field are evaluated by susceptibility curves and hysteresis curves, both obtained by SQUID magnetometry for samples of different density, up to 35K and up to 5T applied magnetic field. The experimental results have been compared with the best values reported in the literature for other bulk sintering techniques.
Ceresara S.
Chiarelli S.
Giunchi Giovanni
Martini Luca
Ottoboni V.
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