Influence of Repeated Tensile Stresses on Current Transfer Characteristics of YBCO Coated Conductors With Solder Joints

• Published in: IEEE transactions on applied superconductivity Vol. 24; no. 3; pp. 1 - 4
• Main Authors: Isozaki, K., Iwasaki, S., Anazawa, T., Sasaki, E., Takao, T., Tsukamoto, O.
• Format: Journal Article Conference Proceeding
• Language: English
• Published: New York, NY IEEE 01-06-2014; Institute of Electrical and Electronics Engineers; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Applied sciences; Coating; COATINGS; Conductors; Copper layer; COPPER OXIDE; Critical current density (superconductivity); Damage; Design. Technologies. Operation analysis. Testing; Electric connection. Cables. Wiring; ELECTRICAL CONDUCTORS; Electrical engineering. Electrical power engineering; Electronics; Exact sciences and technology; Integrated circuits; JOINTS; Lap joints; repeated tensile stress; Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices; solder joint; SOLDERING ALLOYS; STRESS; Stresses; SUPERCONDUCTORS; Tensile stress; Transport; Various equipment and components; Voltage measurement; YBCO coated conductor; YBCO superconductors; Yttrium barium copper oxide; YTTRIUM OXIDE; Integrated circuit bonding; Tensile stress; Lap joint; solder joint; Soldered joint; Transfer characteristic; YBCO coated conductor; repeated tensile stress; Electrical conductor; Copper layer; Coated material; Damaging
• ISSN: 1051-8223; 1558-2515
• DOI: 10.1109/TASC.2013.2285100

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.