Low temperature mechanical properties of Y123 bulk superconductor fabricated by the modified QMG process

A. Murakami, K. Katagiri, K. Kasaba, K. Noto, H. Teshima, M. Sawamura, Naomichi Sakai, Masato Murakami

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

The monotonic and the repeated bending tests on the Y123 single grain bulk superconductor sample were carried out. The average Young's modulus at liquid nitrogen temperature (LNT), 148 GPa, was higher than that at room temperature (RT), 132 GPa. The average bending strength at LNT, 90 MPa, was also higher than that at RT, 74 MPa. The Weibull coefficient for the bending strength at RT, 17.6, was significantly larger than that at LNT, 6.1. The specimen cut from the bottom region of the bulk superconductor showed slightly higher value of the Young's modulus and lower value of the bending strength. The fatigue endurance limit for the repeated pulsating loading up to 5×104 cycles at LNT, 70 MPa, was about 80% of the bending strength.

Original languageEnglish
Pages (from-to)673-677
Number of pages5
JournalPhysica C: Superconductivity and its Applications
Volume412-414
Issue numberSPEC. ISS.
DOIs
Publication statusPublished - 2004 Oct

Fingerprint

flexural strength
liquid nitrogen
Superconducting materials
mechanical properties
Mechanical properties
Liquid nitrogen
Bending strength
modulus of elasticity
room temperature
Temperature
temperature
endurance
Elastic moduli
Bending tests
cycles
coefficients
Durability
Fatigue of materials

Keywords

  • Bending strength
  • Bulk superconductor
  • Cryogenic temperature
  • Modified QMG
  • Y123
  • Young's modulus

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Low temperature mechanical properties of Y123 bulk superconductor fabricated by the modified QMG process. / Murakami, A.; Katagiri, K.; Kasaba, K.; Noto, K.; Teshima, H.; Sawamura, M.; Sakai, Naomichi; Murakami, Masato.

In: Physica C: Superconductivity and its Applications, Vol. 412-414, No. SPEC. ISS., 10.2004, p. 673-677.

Research output: Contribution to journalArticle

Murakami, A. ; Katagiri, K. ; Kasaba, K. ; Noto, K. ; Teshima, H. ; Sawamura, M. ; Sakai, Naomichi ; Murakami, Masato. / Low temperature mechanical properties of Y123 bulk superconductor fabricated by the modified QMG process. In: Physica C: Superconductivity and its Applications. 2004 ; Vol. 412-414, No. SPEC. ISS. pp. 673-677.
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AU - Teshima, H.

AU - Sawamura, M.

AU - Sakai, Naomichi

AU - Murakami, Masato

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