Title :
Fabrication and Properties of Bi2212 Rutherford Superconducting Cable
Author :
Kim, Sang-Cheol ; Ha, Dong-Woo ; Oh, Sang-Soo ; Song, Kyu-Jeong ; Kim, Seong-Jin ; Han, Il-Yong ; Sohn, Ho-Sang
Author_Institution :
Nexans Korea Ltd., Cheongwon, South Korea
fDate :
6/1/2009 12:00:00 AM
Abstract :
Bi2212/Ag round wire can be used as large current capacity conductor fabricated in the shape of Rutherford cable. We have fabricated 110 m long Bi2212 Rutherford cable of 20 strand and 10 m long Bi2212 Rutherford cable of 30 strand and 8 strand by using our own Rutherford cabling machine. The critical current (I c) of the reacted Rutherford cables have been measured at 4.2 K and 65 K, respectively. The magnetization (M) versus. magnetic field (H) and magnetic irreversibility (DeltaM) versus. magnetic field (H) have been measured at 5-40 K in background magnetic field up to 8 T using PPMS instrument. It is estimated from DeltaM that critical current density (J c) of 20 strand Rutherford cable is higher than that of 30 strand Rutherford cable.
Keywords :
bismuth compounds; calcium compounds; critical current density (superconductivity); high-temperature superconductors; magnetisation; materials preparation; multifilamentary superconductors; silver; strontium compounds; superconducting cables; Bi2212 Rutherford superconducting cable; Bi2Sr2CaCu2O8-Ag; PPMS instrument; Rutherford cabling machine; critical current; critical current density; large current capacity conductor; magnetic field; magnetic irreversibility; magnetization; multifilamentary round wire; size 10 m; size 110 m; temperature 4.2 K; temperature 5 K to 40 K; temperature 65 K; Bi2212/Ag wire; Rutherford superconducting cable; multi-filamentary wire; powder-in-tube;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
DOI :
10.1109/TASC.2009.2018852
