Vickers hardness properties of YBCO bulk superconductor at cryogenic temperatures

Y. Yoshino, A. Iwabuchi, K. Noto, N. Sakai, M. Murakami

Research output: Contribution to journalArticle

36 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
DOIs
Publication statusPublished - 2001 Aug

Keywords

  • Cryogenic temperatures
  • Mechanical properties
  • Vickers hardness
  • YBCO

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

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