Infiltration and top seed growth-textured YBCO bulks with multiple holes

Jacques G. Noudem, Sophie Meslin, Daniel Horvath, Christelle Harnois, Daniel Chateigner, Bachir Ouladdiaf, Sophie Eve, Mousta Gomina, Xavier Chaud, Masato Murakami

Research output: Contribution to journalArticle

24 Citations (Scopus)

Abstract

The recently reported hole-patterned YBa2Cu3O y (Y123) bulks with improved superconducting properties are highly interesting from material quality and application variety points of view. It is well known that the core of plain bulk superconductors needs to be fully oxygenated and some defects like cracks, pores, and voids must be suppressed in order that the material can trap a high magnetic field or carry a high current density. To minimize the above defects, we have used a combination of standard superconducting ceramic processing and an infiltration technique to prepare regularly perforated YBa2Cu3Oy (Y123) bulk superconductors. This process leads to negligible shrinkage upon annealing and a uniform distribution of Y211 inclusions. Texture was evidenced by neutron pole figure measurements. Flux mapping was used to verify the superconducting homogeneity of the samples and to investigate the field-trapping ability. In addition, the textured drilled samples were reinforced using resin or metal impregnation and the influence of the different processing steps on the hardness of the materials has been investigated.

Original languageEnglish
Pages (from-to)2784-2790
Number of pages7
JournalJournal of the American Ceramic Society
Volume90
Issue number9
DOIs
Publication statusPublished - 2007 Sep

    Fingerprint

ASJC Scopus subject areas

  • Ceramics and Composites

Cite this