Title :
Analytical model of superconducting to normal transition of bulk high Tc superconductor BSCCO-2212
Author :
Sutherland, Peter E.
Author_Institution :
EPRI Solutions Inc., Schenectady, NY
fDate :
3/1/2006 12:00:00 AM
Abstract :
A comprehensive theoretical expression for the superconducting-to-normal transition of high-temperature superconducting (HTS) materials is derived. The electric field and resistivity of bulk melt-cast processed BSCCO-2212 are derived from the superconducting, flux creep, flux flow, and resistive properties of high critical temperature superconductors (HTS). An asymptotic function is used to model the Bean and Ohmic limits of the E(B,T,J) characteristics. Comparison is made with the experimental results of Elschner et al. The new model may be used in simulating the operation of HTS power equipment, and may be applicable to other HTS materials
Keywords :
bismuth compounds; calcium compounds; casting; critical current density (superconductivity); electrical resistivity; fault current limiters; flux creep; high-temperature superconductors; strontium compounds; superconducting devices; superconducting transition temperature; Bean limits; Bi2Sr2CaCu2Ox; asymptotic function; bulk melt-cast processed BSCCO-2212; electric field; electric resistivity; flux creep; flux flow; high critical temperature superconductors; high-temperature superconducting materials; high-temperature superconducting power equipment; ohmic limits; superconducting fault current limiters; superconducting-normal transition; Analytical models; Bean model; Conductivity; Creep; Fault current limiters; High temperature superconductors; Strontium; Superconducting coils; Superconducting materials; Superconducting transmission lines; flux flow; superconducting fault current limiter (FCL);
Journal_Title :
Applied Superconductivity, IEEE Transactions on
DOI :
10.1109/TASC.2005.863524
