Estimation of stability and critical current density of oxide superconducting wires

Author

Nishijima, S. ; Takahata, K. ; Okada, T. ; Sakai, Y. ; Ikisawa, K. ; Mori, T. ; Takasu, N. ; Ikeda, K. ; Ueminami, K.

Author_Institution

ISIR Osaka Univ., Japan

Volume

25

Issue

2

fYear

1989

fDate

3/1/1989 12:00:00 AM

Firstpage

2289

Lastpage

2292

Abstract

The critical-current density of the high-T_c oxide superconductor, YBa₂Cu₃O_7-x (YBCO), has been measured changing the temperature down to liquid-nitrogen temperature (LNT) in order to estimate the adiabatic and cryogenic stabilities at LNT. In estimating the critical-current density, both four-terminal and magnetization measurements were made. The specific heat was also measured. The adiabatic stability was found to be much higher than that of conventional superconductors at liquid-helium temperature. The cryogenic stability, however, is found to be poor

Keywords

barium compounds; critical current density (superconductivity); high-temperature superconductors; magnetisation; specific heat of solids; yttrium compounds; 77 K; YBa₂Cu₃O_7-x; adiabatic stability; critical current density; cryogenic stabilities; four terminal measurements; high temperature superconductors; high-T_c oxide superconductor; magnetization; oxide superconducting wires; specific heat; stability; Critical current density; Cryogenics; Current measurement; High temperature superconductors; Magnetic field measurement; Multifilamentary superconductors; Stability; Superconducting filaments and wires; Superconducting magnets; Yttrium barium copper oxide;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.92766

Filename

92766