Title :
Thermal stability of oxide superconductors in flux flow state
Author :
Nishijima, Gen ; Awaji, Satoshi ; Watanabe, Kazuo
Author_Institution :
Inst. for Mater. Res., Tohoku Univ., Sendai, Japan
fDate :
6/1/2003 12:00:00 AM
Abstract :
Transport characteristics of Bi-2212 wire in flux-flow state were experimentally investigated under a cryocooled condition in high magnetic fields up to 14 T at various temperatures. The heat balance affected the thermal stability of oxide superconductors, and the oxide superconductor with large current capacity and large n value quenched at the current that was smaller than its critical current.
Keywords :
bismuth compounds; calcium compounds; critical currents; flux flow; high-temperature superconductors; strontium compounds; thermal stability; 14 T; Bi-2212 wire; Bi2Sr2CaCu2O; critical current; cryocooling; current capacity; flux flow state; heat balance; n-value; oxide superconductor; quench current; thermal stability; transport characteristics; Cooling; Critical current; Magnetic field measurement; Superconducting filaments and wires; Superconducting magnets; Superconductivity; Temperature sensors; Thermal quenching; Thermal stability; Voltage;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
DOI :
10.1109/TASC.2003.812793
