Abstract
In this work, we show the transport current results and structural analysis for Mg11B2 wires for the first time made with high purity, nano-size and amorphous boron 11 (11B). Irradiation has a weak effect on the MgB2 material made of 11B. Therefore, it is important for future applications to fusion reactors. This type of reactor will produce clean and cheap energy. We report for first time that high-fields pinning centers and dense layered structure lead to high transport critical current density (Jtc) in high magnetic fields. This allows to obtain highest Jtc value in the world (100 A/mm2 at 4.2 K and 8.5 T). We show that lack of dense layered structure and high-fields pinning centers lead to lower Jtc in high magnetic fields. Our research shows that high isostatic pressure (HIP) promotes high-field pinning centers.
Published Version
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