Title :
Influence of Repeated Tensile Stresses on Current Transfer Characteristics of YBCO Coated Conductors With Solder Joints
Author :
Isozaki, Kousuke ; Iwasaki, Shoichi ; Anazawa, Takao ; Sasaki, Erika ; Takao, Tomoaki ; Tsukamoto, Osami
Author_Institution :
Fac. of Sci. & Technol., Sophia Univ., Tokyo, Japan
Abstract :
This work investigates current transport characteristics of soldered lap joints of YBCO coated conductors with Cu stabilizers subjected to repeated uni-axial tensile stresses in the longitudinal direction. Data of influence of repeated stresses on transport characteristics clearly show fatigue effect causing damages in YBCO layer. From experimental data, it is considered that the damages occur in edge areas of lap joint sections where stresses are concentrated.
Keywords :
barium compounds; fatigue; high-temperature superconductors; solders; tensile testing; yttrium compounds; YBCO; YBCO coated conductors; current transfer characteristics; fatigue effect; repeated tensile stress; solder joints; uniaxial tensile stress; Conductors; Critical current density (superconductivity); Joints; Tensile stress; Voltage measurement; Yttrium barium copper oxide; Copper layer; YBCO coated conductor; repeated tensile stress; solder joint;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
DOI :
10.1109/TASC.2013.2285100
