Vickers hardness properties of YBCO bulk superconductor at cryogenic temperatures

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

doi:10.1016/S0921-4534(01)00367-7

Vickers hardness properties of YBCO bulk superconductor at cryogenic temperatures

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

Research output: Contribution to journal › Article › peer-review

42 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 K_IC at cryogenic temperatures was attempted to estimate with Vickers hardness and crack length.

Original language	English
Pages (from-to)	796-798
Number of pages	3
Journal	Physica C: Superconductivity and its applications
Volume	357-360
DOIs	https://doi.org/10.1016/S0921-4534(01)00367-7
Publication status	Published - 2001 Aug
Externally published	Yes

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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10.1016/S0921-4534(01)00367-7

Cite this

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title = "Vickers hardness properties of YBCO bulk superconductor at cryogenic temperatures",

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.",

keywords = "Cryogenic temperatures, Mechanical properties, Vickers hardness, YBCO",

author = "Y. Yoshino and A. Iwabuchi and K. Noto and N. Sakai and M. Murakami",

note = "Funding Information: This work was financially supported by Grant-in-Aid for Scientific Research, Ministry of Education, Japan (no. 11555048). This work has also been supported by Japan Science and Technology Corporation under the Joint-research Project for Regional Intensive in Iwate Prefecture on “Development of practical applications of magnetic field technology for use in the region and in everyday living”.",

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doi = "10.1016/S0921-4534(01)00367-7",

language = "English",

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T1 - Vickers hardness properties of YBCO bulk superconductor at cryogenic temperatures

AU - Yoshino, Y.

AU - Iwabuchi, A.

AU - Noto, K.

AU - Sakai, N.

AU - Murakami, M.

N1 - Funding Information: This work was financially supported by Grant-in-Aid for Scientific Research, Ministry of Education, Japan (no. 11555048). This work has also been supported by Japan Science and Technology Corporation under the Joint-research Project for Regional Intensive in Iwate Prefecture on “Development of practical applications of magnetic field technology for use in the region and in everyday living”.

PY - 2001/8

Y1 - 2001/8

N2 - 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.

AB - 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.

KW - Cryogenic temperatures

KW - Mechanical properties

KW - Vickers hardness

KW - YBCO

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ER -

Vickers hardness properties of YBCO bulk superconductor at cryogenic temperatures

Abstract

Keywords

ASJC Scopus subject areas

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