28 June 2015 to 2 July 2015
JW Marriott Starr Pass Resort
Etc/GMT-7 timezone

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

1 Jul 2015, 14:45
Tucson Ballroom GH ()

Tucson Ballroom GH

Contributed Oral Presentation CEC-15 - Instrumentation and Controls C3OrG - Cryogenic Instrumentation and Control Systems


Prof. Minoru Takeda (Kobe University)


To establish hydrogen worldwide storage and marine transportation, it is important to develop liquid hydrogen tanks/carriers like liquefied natural gas tanks/carriers as well as a long level sensor such as a superconducting magnesium diboride (MgB2) level sensor. In the case of lengthening the MgB2 level sensor, a whole MgB2 wire needs uniform superconducting characteristics. Long MgB2 wires 1.7 m long and 0.32 mm in diameter, which were fabricated by in-situ method and reinforced by a CuNi (7:3) sheath, were taken as an object of study. To suppress the critical temperature of the wires, impurities (10% SiC) were added to the MgB2 core. A characteristic Difference among all the individuals of the same 20 mm-long MgB2 short wires were discussed. *This work was supported in part by a Grant-in Aid for Scientific Research, JSPS KAKENHI Grant Number 24246143, Japan.*

Primary author

Prof. Minoru Takeda (Kobe University)


Dr Hiroaki Kumakura (National Institute for Materials Science) Mr Kazuma Maekawa (Kobe University) Mr Shizuichi Fujikawa (Iwatani Corporation) Mr Yu Matsuno (Iwatani Corporation) Mr Yuki Inoue (Kobe University)

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