Recent
worldwide progress in BSCCO
tape fabrication and properties is reviewed. A short multifilamentary composite tape based on Bi (Pb)-2223 HTS and a scalable rolling process has reached a record Jc (77K) of up to 58 000 A. cm-2. Consistently high Jcs (77 K, self-fields) greater than1×104 A. cm-2 have been achieved along the entire lengths of over 1 000 m long for the
tapes produced by some companies. Advances in the R&D of BSCCO tapes by the powder-in-tube technique continue to bring these materials closer to commercial applications. Pancake-shaped coils and prototype magnets fabricated from the long tapes, have been tested and characterized. Researches have built a large react and wind coil from Bi (Ph)-2223 tapes which generated a field of 7 T at 20 K. Much improved and simpler methods of producing Bi (Ph)-2223 tapes have been
developed in
Recent years. Especially, some innovative continuous manufacturing processes have been developed and the amount of silver has been reduced. Therefore, the cost of BSCCO tape has been
reduced to a level where it can be sold as a commodity product.Correspondent: Li Chengren, Senior Engineer, Northwest institute for Nonferrous Metal Research, Xi'an 710016, P. R. China, Tel:086-29- 6231117
More abstracts about the Advances in the R&D of BSCCO HTS Tapes Worldwide