高温超伝導体バルクの渦巻型コイルによる着磁特性(自然科学)

概要

論文の詳細を見る
Pulsed magnetization was studied for a field-free cooled high temperature superconductor (HTS) bulk disk of a melt-textured Gd-Ba-Cu-O. The bulk disk is sandwiched in between a couple of pulsed vortex-type Cu coils at 77K. The field can well penetrate to the center at the sample surface even for low pulsed peak field. In a multi-pulse process, with increasing the successive applied field, the trapped field at the center increases monotonically without any trace of saturation up to at least 1.3T. Electric energy necessary to enough pulse current to magnetize the sample up to 1T with a pair of vortex-type coils is about a half of the energy with employing conventional solenoid. A couple of vortex-type coils provide us an effective way to magnetize HTS bulk cryo-magnets with sufficient homogeneity and low energy cost.
広島商船高等専門学校の論文
2004-03-19