MgB2 bulk superconducting magnet

A. Yamamoto; A. Ishihara; M. Tomita; J. Shimoyama; K. Kishio

MgB2 bulk superconducting magnet

Superconductivity 2012-08-10 v1

Authors: A. Yamamoto , A. Ishihara , M. Tomita , J. Shimoyama , K. Kishio

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.

Keywords

mgb2 superconductivity magnetization superconductivity

Cite

@article{arxiv.1208.1854,
  title  = {MgB2 bulk superconducting magnet},
  author = {A. Yamamoto and A. Ishihara and M. Tomita and J. Shimoyama and K. Kishio},
  journal= {arXiv preprint arXiv:1208.1854},
  year   = {2012}
}

Comments

The Abstracts of the 15th Japan-US Workshop on Advanced Superconductors, page 34-35, published on Oct 27th, 2011

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