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Transport and Mechanical Property Evaluation for Cu Stabilized PLD- {\hbox {GdBa}}_{2}{\hbox {Cu}}_{3}{\hbox {O}}_{\rm y} Coated Conductor

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2 Author(s)
Gen Nishijima ; Superconducting Wire Unit, National Institute for Materials Science (NIMS), Tsukuba, Japan ; Hitoshi Kitaguchi

Transport properties and mechanical properties were investigated for a Cu stabilized PLD-GdBa2Cu3Oy (GdBCO) coated conductor. The conductor consists of a 100- thick Hastelloy substrate, buffer layers, a 1.5- thick superconducting layer, and a 100- thick copper stabilizer. Critical currents were measured up to 600 A in magnetic fields (parallel and perpendicular to the conductor surface) up to 12 T and in temperatures ranging from 4.2 to 85 K. Temperature dependence of -value was also evaluated. Mechanical property was evaluated by measuring stress/strain dependence of critical current at 77 K, self-field. Delamination property was also evaluated at room temperature using the cleavage delamination test method for adhesive bonds. The delamination propagates at GdBCO/ interface.

Published in:

IEEE Transactions on Applied Superconductivity  (Volume:22 ,  Issue: 3 )