Title :
Evaluation of E-J characteristics for Bi-2223 wires
Author :
Okamoto, H. ; Irie, F. ; Kiss, T. ; Hasegawa, K. ; Inoue, M. ; Kanazawa, M.
Author_Institution :
Res. Lab., Kyushu Electr. Power Co. Inc., Fukuoka, Japan
fDate :
6/1/1999 12:00:00 AM
Abstract :
We have studied a method to evaluate electric field (E) vs. current density (J) characteristics of high temperature superconductors as a basis for their power device application. The E-J characteristics of Bi-2223 wires were measured in a wide range of magnetic field and temperature. Those characteristics are discussed by the theory of critical-current-density distribution and by the scaling law of the pinning force.
Keywords :
bismuth compounds; calcium compounds; critical current density (superconductivity); flux pinning; high-temperature superconductors; strontium compounds; Bi/sub 2/Sr/sub 2/Ca/sub 2/Cu/sub 3/O; E-J characteristics; critical-current-density; current density; high temperature superconductors; pinning force; Current density; Force measurement; High temperature superconductors; Magnetic field measurement; Pulse measurements; Pulsed power supplies; Superconductivity; Temperature distribution; Voltage; Wires;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
