Nanoscale pinning media in bulk melt-textured high-tc superconductors and their importance for super-magnet applications

M. Muralidhar, N. Sakai, M. Jirsa, M. Murakami, I. Hirabayashi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The creation and control of nanoscale pinning media in melt-processed ternary superconductors (LRE1,LRE2,LRE3)- Ba2Cu3Oy (LRE=light rare earth) represent an important issue not only for the bulk form of these superconductors. Some of the nanometre-size defects are able to increase irreversibility field up to 14 T at 77 K, others extend the pinning performance of the material up to vicinity of critical temperature, enabling thus levitation with liquid oxygen or argon cooling. Additionally, an optimum content of MoO3 doubles the self-field super-current at 77 K, H//c-axis. Altogether, the pinning tailoring in ternary LRE-123 materials provides a flexible and reliable way to fit the electromagnetic performance with the needs of sophisticated high-temperature and high-magnetic-field applications. The research aims at such applications like super-magnets for NMR, drug delivery systems, wind power generation applications, etc. The recent experimental results on ternary LRE-Ba 2Cu3Oy materials are reviewed with a special respect to creation and control of novel types of nanoscale pinning media.

Original languageEnglish
Title of host publicationNanostructured Materials and Nanotechnology II - A Collection of Papers Presented at the 32nd International Conference on Advanced Ceramics and Composites
Pages159-167
Number of pages9
Edition8
Publication statusPublished - 2009 Mar 27
EventNanostructured Materials and Nanotechnology II - 32nd International Conference on Advanced Ceramics and Composites - Daytona Beach, FL, United States
Duration: 2008 Jan 272008 Feb 1

Publication series

NameCeramic Engineering and Science Proceedings
Number8
Volume29
ISSN (Print)0196-6219

Conference

ConferenceNanostructured Materials and Nanotechnology II - 32nd International Conference on Advanced Ceramics and Composites
CountryUnited States
CityDaytona Beach, FL
Period08/1/2708/2/1

ASJC Scopus subject areas

  • Ceramics and Composites
  • Materials Chemistry

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    Muralidhar, M., Sakai, N., Jirsa, M., Murakami, M., & Hirabayashi, I. (2009). Nanoscale pinning media in bulk melt-textured high-tc superconductors and their importance for super-magnet applications. In Nanostructured Materials and Nanotechnology II - A Collection of Papers Presented at the 32nd International Conference on Advanced Ceramics and Composites (8 ed., pp. 159-167). (Ceramic Engineering and Science Proceedings; Vol. 29, No. 8).