학술논문

Effects of bending on cracking and critical current of Nb/sub 3/Sn ITER wires
Document Type
Periodical
Source
IEEE Transactions on Applied Superconductivity IEEE Trans. Appl. Supercond. Applied Superconductivity, IEEE Transactions on. 15(2):3470-3473 Jun, 2005
Subject
Fields, Waves and Electromagnetics
Engineered Materials, Dielectrics and Plasmas
Critical current
Niobium
Current measurement
Microscopy
Performance evaluation
Inductors
Wires
Solenoids
Coils
Temperature distribution
Bending
critical current
ITER
microstructure
superconductor
Language
ISSN
1051-8223
1558-2515
2378-7074
Abstract
Critical current (I/sub c/) measurements and microscopic crack investigations were performed on short samples of ITER (International Thermonuclear Experimental Reactor) wires, designed for the CSMC (Central Solenoid Model Coil), that were bent to curvatures ranging up to 0.3% at room temperature. I/sub c/ was found to improve significantly with bending. Microstructural investigation revealed that IGC and VAC samples were nearly crack-free at all bend strains while Furukawa samples had significant cracking due to polishing and unrelated to bending.