Current status and future prospects of Japanese national project on coated conductor development and its applications

Evaluation of current transport properties of GdBa2Cu3O7−δcoated conductors over a wide range of temperature and external magnetic fields

“…Aside from the well described YBa 2 Cu 3 O 7-δ (Y-123, YBCO) coated conductors, SmBCO [1], HoBCO [2] and GdBCO [3] coated conductors with similar or better superconducting properties can be produced. Apart from their superconducting properties, the potential application of coated conductors strongly depends on their production speed, costs, available lengths and mechanical strength.…”

Feasibility of HTS Magnet Option for Fusion Reactors

“…Owing to the significant progress that has been made in wire production technology in recent years, copperoxide based high-temperature superconducting (HTS) materials are now being applied to a number of prototype electrical devices, such as power cables, transformers, energy storage systems and motors [1]. The production of largescale HTS magnets for use in fusion reactors has also been considered [2,3].…”

“…Though it is still widely believed that HTS materials are fragile, it is actually possible to fabricate strong coils using rare-earth barium copper oxide (RE-BCO) tape. In this type of tape, a substrate composed of a Ni alloy such as Hastelloy, with a high yield strength of > 1 GPa, is coated with a REBCO material such as YBCO (where Y represents yttrium) [1].…”

Jc anisotropy for magnetic field angle in YBCO coated conductor on IBAD-MgO buffered metal tapes

“…Recently, coated conductor based on epitaxial REBa 2 Cu 3 O y (REBCO) films grown on metallic substrates with oxide textured buffer layers has improved on the performance of critical current (I c ) [1,2] and critical current density (J c ) [3] in high applied magnetic fields. Coated conductors are expected to be used for a number of electric power applications such as power transmission cables, magnets and motors.…”