Title :
Dependence of AC transport current losses of HTS wires on their structures and synthesizing processes
Author :
Tsukamoto, O. ; Miyagi, D. ; Ishii, S. ; Amemiya, N. ; Fukui, S. ; Kasuu, O. ; Li, Huaqing ; Takeda, K. ; Shibuya, M. ; Mimura, M. ; Hayashi, K. ; Yoshino, H.
Author_Institution :
Fac. of Eng., Yokohama Nat. Univ., Japan
fDate :
6/1/1999 12:00:00 AM
Abstract :
HTS wires of various structures and synthesizing processes are being developed for power apparatus applications in the Super-GM project. AC transport current losses of four of those wires were measured by an electric method using a lock-in amplifier. Measured wires are a Bi2212 rod fabricated by the laser pedestal growth method, a Y123 tape fabricated by the pulsed laser deposition and multilayered Bi2223/Ag sheathed wires of square and tape shapes. In this paper, based on measured data, dependence of AC transport current losses of HTS wires on their structures and synthesizing processes is discussed.
Keywords :
barium compounds; bismuth compounds; calcium compounds; high-temperature superconductors; loss measurement; silver; strontium compounds; superconducting cables; yttrium compounds; AC transport current losses; Bi/sub 2/Sr/sub 2/Ca/sub 2/Cu/sub 3/O-Ag; Bi/sub 2/Sr/sub 2/CaCu/sub 2/O; Bi/sub 2/Sr/sub 2/CaCu/sub 2/O rods; Bi2212 rod; HTS wires; Super-GM project; Y123 tape; YBa/sub 2/Cu/sub 3/O; electric method; laser pedestal growth method; lock-in amplifier; multilayered Bi2223/Ag sheathed wires; power apparatus applications; square shape; synthesizing processes; tape shape; Current measurement; Electric variables measurement; High temperature superconductors; Loss measurement; Optical pulse shaping; Pulse amplifiers; Pulse measurements; Pulsed laser deposition; Shape measurement; Wires;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
