Vickers hardness properties of YBCO bulk superconductor at cryogenic temperatures

Y. Yoshino, A. Iwabuchi, K. Noto, Naomichi Sakai, Masato Murakami

Research output: Contribution to journalArticle

35 Citations (Scopus)

Abstract

Vickers hardness properties of YBCO bulk superconductor have been investigated from 40 to 293 K in this study. Hardness increased up to 18,000 ± 2500 MPa with decreasing temperature. Furthermore, cracks caused by the indentation process were observed with SEM, and the increase in crack length with decreasing of temperature was obtained. Fracture toughness KIC at cryogenic temperatures was attempted to estimate with Vickers hardness and crack length.

Original languageEnglish
Pages (from-to)796-798
Number of pages3
JournalPhysica C: Superconductivity and its Applications
Volume357-360
Issue numberSUPPL. 2
DOIs
Publication statusPublished - 2001 Aug
Externally publishedYes

Fingerprint

Vickers hardness
cryogenic temperature
Cryogenics
Superconducting materials
cracks
Cracks
fracture strength
indentation
Indentation
Temperature
Fracture toughness
hardness
Hardness
Scanning electron microscopy
scanning electron microscopy
temperature
estimates

Keywords

  • Cryogenic temperatures
  • Mechanical properties
  • Vickers hardness
  • YBCO

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Vickers hardness properties of YBCO bulk superconductor at cryogenic temperatures. / Yoshino, Y.; Iwabuchi, A.; Noto, K.; Sakai, Naomichi; Murakami, Masato.

In: Physica C: Superconductivity and its Applications, Vol. 357-360, No. SUPPL. 2, 08.2001, p. 796-798.

Research output: Contribution to journalArticle

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