A reel-to-reel liquid deposition process designed to be scalable to
high-volume, low-cost manufacturing of high-temperature superconducting (HTS)
wire has produced lengths of "record-breaking" second-generation (2G)
ribbon, announces American Superconductor Corp. (AMSC), Westborough, Mass.,
with support from the National Institute of Standards and Technology Advanced
Technology Program. AMSC has developed a large-scale continuous-process
reaction furnace for producing 100-meter lengths of 2G HTS ribbon.
The 2G HTS ribbon has achieved electric current-carrying capacity in
multiple ten-meter lengths equal to or better than 250 amperes per centimeter
of width. This approaches performance levels required for commercial
applications.
Large-scale use of HTS wire carrying high amperage electrical current with
virtually no resistance promises dramatic gains in energy efficiency. The new
technology can also increase the efficiency of large electric motors by as much
as 50% and enable smaller, more powerful magnetic resonance imaging machines.
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