Superconducting characteristics of short MgB2 wires of long level sensor for liquid hydrogen

[摘要] To establish the worldwide storage and marine transport of hydrogen, it is important to develop a high-precision and long level sensor, such as a superconducting magnesium diboride (MgB2) level sensor for large liquid hydrogen (LH2) tanks on board ships. Three 1.7-m-long MgB2 wires were fabricated by an in situ method, and the superconducting characteristics of twenty-four 20-mm-long MgB2 wires on the 1.7-m-long wires were studied. In addition, the static level-detecting characteristics of five 500-mm-long MgB2 level sensors were evaluated under atmospheric pressure.

[发布机构] Kobe University, Kobe, Hyogo; 658-0022, Japan^1;Iwatani Corporation, Amagasaki, Hyogo; 661-0965, Japan^2;National Institute for Materials Science, Tsukuba, Ibaraki; 305-0047, Japan^3

[效力级别] 物理学 [学科分类] 材料科学（综合）

[关键词] High-precision;In-situ methods;Level sensors;Liquid hydrogens;Magnesium diborides;Marine transport;MgB2 wires