Abstract
The investigation of Ni–W alloys in the concentration range of solid solubility of tungsten in nickel proved the potential of this metallurgical system for rolling assisted biaxially textured substrate (RABiTS) tapes of high performance. The cube texture of Ni+5 at.%W was characterized by a maximum of the deviation frequency at about 4°. For this material the beneficial effect of the initial grain size on the final texture quality was shown. The YBCO (YBa 2Cu 3O 7− δ ) type coatings on CeO 2 buffer layers carried absolute currents up to I=130 A at 77 K. A critical current density of j c=1.2 MA/cm 2 was achieved at 77 K and zero field on tapes up to 20 cm long.
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