69 citations · 251 across the 9 of their papers we have counts for
3 papers · 1 filter
Grain size determination of superconducting MgB2 powders from magnetization curve, image analysis and surface area measurement
Maurizio Vignolo, Gianmarco Bovone, Emilio Bellingeri +5
The present article reports a method for the average grain size evaluation of superconducting nano-particles through their magnetic properties. The use of SQUID magnetometry to det…
A novel process to produce amorphous nano-sized B useful for MgB2 phase synthesis
Maurizio Vignolo, Gennaro Romano, Cristina Bernini +2
In this paper we report a new synthesis route to produce boron powders characterized as being amorphous and having very fine particle size. This route has been developed to improve…
High temperature heat treatment of B precursor and P.I.T. process optimization to increase Jc performances of MgB2-based conductor
Maurizio Vignolo, Gianmarco Bovone, Cristina Bernini +4
Promising results reported in our previous works led us to think that production of B powder plays a crucial role in MgB2 synthesis. A new method for boron preparation has been dev…