Microstructure and superconducting properties of melt-processed bulk Gd123 single domain with Gd2Ba4CuMOx (M=Mo and Zr) additions

Caixuan Xu, Anming Hu, Naomichi Sakai, Mitsuru Izumi, Izumi Hirabayashi

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

Abstract

Inclusion of the finely dispersed RE2BaCuO5 (RE211) enhances flux pinning in bulk REBa2Cu3O 7-δ. Recently, we tested the effect of Gd2Ba 4CuMOx (Gd2411; M= Zr, Mo) addition on the trapped field and critical current density (Jc) in single domain of bulk GdBa 2Cu3O7-δ (Gd123) with the additional amount ranging from 0.2 mol % to 20 mol %, ratio to Gd123. Around the seeding zone a novel band of the second phase distribution was observed for all Gd2411 additional levels. Second phase excess regions were followed by diluted second phase regions, those appeared alternatively, and formed an inhomogeneous band structure, while an uniform distribution of Gd211 appeared from 0.5 cm away from the seed to the edge of domain along 〈100〉/〈010〉 direction. Jc values strongly depend on the positions and the Gd2411 addition was proved to enhance Jc near the seeding site rather than edge-periphery zone of the bulk disk.

Original languageEnglish
Title of host publicationADVANCES IN CRYOGENIC ENGINEERING
Subtitle of host publicationTransactions of the International Cryogenic Materials Conference, ICMC, Volume 52B
Pages779-785
Number of pages7
DOIs
Publication statusPublished - 2006 Mar 31
EventADVANCES IN CRYOGENIC ENGINEERING: Transactions of the International Cryogenic Materials Conference, ICMC - Keystone, CO, United States
Duration: 2005 Aug 292005 Sep 2

Publication series

NameAIP Conference Proceedings
Volume824 II
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

ConferenceADVANCES IN CRYOGENIC ENGINEERING: Transactions of the International Cryogenic Materials Conference, ICMC
CountryUnited States
CityKeystone, CO
Period05/8/2905/9/2

Keywords

  • Band structure
  • GdBaCuMO
  • Spatial distribution

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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  • Cite this

    Xu, C., Hu, A., Sakai, N., Izumi, M., & Hirabayashi, I. (2006). Microstructure and superconducting properties of melt-processed bulk Gd123 single domain with Gd2Ba4CuMOx (M=Mo and Zr) additions. In ADVANCES IN CRYOGENIC ENGINEERING: Transactions of the International Cryogenic Materials Conference, ICMC, Volume 52B (pp. 779-785). (AIP Conference Proceedings; Vol. 824 II). https://doi.org/10.1063/1.2192423