Motomune Kodama

TL;DR: In this article, a method of using precursor powder prepared by mechanical milling of magnesium, boron, and coronene powders was proposed to obtain a high critical current density of 103 A mm−2.

TL;DR: In this article, a 300m-long multifilamentary MgB====== 2====== wire was fabricated as a powder-in-tube wire by using an in situ method and a coil was designed to be driven in the maximum magnetic flux density in Mgb====== 2¯¯ filaments over 2 T. The coil was made by using a wind-andreact method and cooled by using conduction cooling.

TL;DR: In this article, a superconducting switch is provided in which the structural strength of the switch is kept, and thermal efficiency is high when an ON state (superconducting state) and an OFF state (normal conducting state) are switched.

TL;DR: In this article, a comparative study of in situ MgB2 wire and bulk Mg-B2 powders was carried out to clarify the mechanism for the high critical current density, Jc, in the practical in situ in situ mg-b2 wires, which was manufactured with an area reduction ratio of 99.93%.

TL;DR: In this paper, an 8 km long MgB BaseType 2 wire for a prototype klystron magnet was made and evaluated, and the homogeneity of the entire wire length was evaluated by several methods.