Title :
Electrical and Mechanical Properties of DI-BSCCO Type HT Reinforced With Metallic Sheathes
Author :
Ayai, Naoki ; Yamazaki, Kouhei ; Kikuchi, Masashi ; Osabe, Goro ; Takaaze, Hideo ; Takayama, Hiromitsu ; Kobayashi, Shin-Ichi ; Fujikami, Jun ; Hayashi, Kazuhiko ; Sato, Ken-Ichi ; Osamura, Kozo ; Kitaguchi, Hitoshi ; Matsumoto, Shinji ; Kiyoshi, Tsukasa
Author_Institution :
Sumitomo Electr. Ind., Ltd., Osaka, Japan
fDate :
6/1/2009 12:00:00 AM
Abstract :
Electrical and mechanical characteristics of Type HT tape, which is standard 4.2 mm wide DI-BSCCO tape reinforced with metallic tapes, have been evaluated. Longitudinal distributions of critical current and n-index in kilometer long Type HT tape has proved uniform from end to end just like the original insert tape, which is Type H tape. Type HT-CA reinforced with 50 mum thick heat-resistant copper alloy is highly balanced tape with high mechanical properties and low splice resistance. Type HT-SS reinforced with 20 mum thick stainless steel has the best mechanical properties, which has been demonstrated under the actual environment in high field magnet, namely the hoop stress load test energizing a one-turn coil in external high magnetic field and liquid helium.
Keywords :
bismuth compounds; calcium compounds; composite superconductors; copper alloys; critical currents; high-temperature superconductors; mechanical testing; stainless steel; strontium compounds; superconducting tapes; BiSrCaCuO-CuJkJk; BiSrCaCuO-FeCrCJk; critical current; electrical properties; heat-resistant copper alloy; high-field magnet; hoop stress load test; liquid helium; longitudinal distributions; low-splice resistance; mechanical properties; metallic sheathes; size 20 mum; size 4.2 mm; size 50 mum; stainless steel; type-HT tape reinforcement; Bismuth; high-temperature superconductors; superconducting filaments and wires; superconducting tapes;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
DOI :
10.1109/TASC.2009.2019018
