LRE-BA2cu3oy superconductors on the way to applications

Muralidhar Miryala, Kenji Suzuki, Milos Jirsa, Masaru Tomita

Research output: Chapter in Book/Report/Conference proceedingChapter

1 Citation (Scopus)

Abstract

The current status, recent development and production techniques for bulk LRE-BA2cu3oy"LRE-123" (LRE=light rare earth, Nd, Eu, Sm, Gd, NEG, SEG) superconductorsare presented. The emphasis is focused on the flux pinning of LRE-123materials, especially the size effect of the initially added nanometer-sized Gd-211, thenew class of nano-scale pinning centers contaminated by a minute amount of Zr-, Ti-,Mo- or Nb- oxides. The topic is reviewed and discussed especially from the viewpoint ofapplications of superconducting permanent magnets in a variety of industrial applicationsincluding Maglev technology. For this aim, a batch process has been developed allowingfabrication of a large quantity of single-domain LRE-123 bulks melt-textured in air or inAr/1% O2 atmosphere, using a cold seeding method with Nd-123/MgO films. Using thesebatch-processed LRE-123 bulks, a child levitation disk, a child Maglev vehicle etc. havebeen constructed that proved that the present technology is capable of producingsuperconducting materials with a reasonable cost and high performance suitable fordesign of powerful superconducting super-magnets.

Original languageEnglish
Title of host publicationSuperconductivity: Recent Developments and New Production Technologies
PublisherNova Science Publishers, Inc.
Pages11-29
Number of pages19
ISBN (Print)9781622571376
Publication statusPublished - 2012 Nov
Externally publishedYes

Fingerprint

Superconducting materials
Magnetic levitation vehicles
Flux pinning
Superconducting magnets
Oxides
Rare earths
Permanent magnets
Magnets
Air
Costs

ASJC Scopus subject areas

  • Materials Science(all)

Cite this

Miryala, M., Suzuki, K., Jirsa, M., & Tomita, M. (2012). LRE-BA2cu3oy superconductors on the way to applications. In Superconductivity: Recent Developments and New Production Technologies (pp. 11-29). Nova Science Publishers, Inc..

LRE-BA2cu3oy superconductors on the way to applications. / Miryala, Muralidhar; Suzuki, Kenji; Jirsa, Milos; Tomita, Masaru.

Superconductivity: Recent Developments and New Production Technologies. Nova Science Publishers, Inc., 2012. p. 11-29.

Research output: Chapter in Book/Report/Conference proceedingChapter

Miryala, M, Suzuki, K, Jirsa, M & Tomita, M 2012, LRE-BA2cu3oy superconductors on the way to applications. in Superconductivity: Recent Developments and New Production Technologies. Nova Science Publishers, Inc., pp. 11-29.
Miryala M, Suzuki K, Jirsa M, Tomita M. LRE-BA2cu3oy superconductors on the way to applications. In Superconductivity: Recent Developments and New Production Technologies. Nova Science Publishers, Inc. 2012. p. 11-29
Miryala, Muralidhar ; Suzuki, Kenji ; Jirsa, Milos ; Tomita, Masaru. / LRE-BA2cu3oy superconductors on the way to applications. Superconductivity: Recent Developments and New Production Technologies. Nova Science Publishers, Inc., 2012. pp. 11-29
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