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arXiv · 1208.1854

MgB2 bulk superconducting magnet

A. Yamamoto·A. Ishihara·M. Tomita·J. Shimoyama·K. Kishio
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Abstract

We have developed disk-shaped MgB2 bulk superconducting magnets (20, 30 mm in diameter, 10 mm in thickness) using the in-situ process from Mg and B powders and evaluated the temperature dependence of trapped magnetic field. A pair of two disc-shaped bulks of 30 mm in diameter and 10 mm in thickness magnetized by field-cooling condition showed trapped fields of 1.2, 2.8 and 3.1 T at 30, 20 and 17.5 K, respectively. High trapped field over 3 T was recorded for the first time.

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A. Yamamoto, A. Ishihara, M. Tomita, J. Shimoyama, K. Kishio. 2012-08-09. MgB2 bulk superconducting magnet. https://arxiv.org/abs/1208.1854

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