Improvements in the mechanical properties of bulk YBCO superconductors with carbon fibre fabrics

M. Tomita, Masato Murakami, K. Yoneda

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

We have measured the tensile strengths of bulk YBCO samples using a tensile test machine. We have found that the tensile strength was dramatically enhanced by wrapping the bulk with carbon fibre fabric prior to resin impregnation. We have also characterized the mechanical properties of large-grain YBCO with a diameter of 46 mm using the strain gauges. The electromagnetic stress was imposed on the bulk samples by reducing the external field from 7 T to 0 T at 65 K. The sample without resin was broken during the field-decreasing process with the maximum stress reaching 150 MPa. In contrast, the maximum stress was only 40 MPa for the resin-impregnated sample covered with the carbon fibre fabrics. These results show that wrapping the bulk YBCO sample with the carbon fibre fabrics may have a beneficial effect in stabilizing the mechanical properties in addition to enhancing the tensile strength.

Original languageEnglish
Pages (from-to)803-807
Number of pages5
JournalSuperconductor Science and Technology
Volume15
Issue number5
DOIs
Publication statusPublished - 2002 May
Externally publishedYes

Fingerprint

YBCO superconductors
carbon fibers
Superconducting materials
Carbon fibers
Tensile strength
Resins
mechanical properties
Mechanical properties
resins
tensile strength
Strain gages
Impregnation
strain gages
tensile tests
carbon fiber
electromagnetism

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)
  • Condensed Matter Physics
  • Electronic, Optical and Magnetic Materials

Cite this

Improvements in the mechanical properties of bulk YBCO superconductors with carbon fibre fabrics. / Tomita, M.; Murakami, Masato; Yoneda, K.

In: Superconductor Science and Technology, Vol. 15, No. 5, 05.2002, p. 803-807.

Research output: Contribution to journalArticle

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