Record current of 4101 A at 19.8 T in a high-temperature superconducting cable

A high-temperature superconducting cable was successfully tested in a background field of 19.8 T at the National High Magnetic Field Laboratory. The CORC Cable was wound from 40 superconducting tapes and had an outer diameter of only 7.5 mm. The cable carried a superconducting current of 4101 A at a temperature of 4.2 K in a background field of 19.81 T, which is the highest superconducting current ever recorded under these conditions. The engineering current density of 93 A/mm2 opens the door for the next generation of superconducting, low-inductance magnets made from CORC Cables that operate at magnetic fields exceeding 20 T and their use in superconductivity research, materials science and fusion research.

Advanced Conductor Technologies LLC was established last year and is headed by the author of technological development, researcher at the University of Colorado (Department of Physics) and the National Institute of Standards and Technology Danko van der Laan (his technology was already described in the report from 12/04/2011).

Recently the U.S. Department of Energy announced that Advanced Conductor Technologies LLC will receive grant of up to $150,000 under the Program for Small Business Innovation Research for the development of high-quality high-temperature superconductor cable from the second generation of magnetic systems for various purposes, including including fusion research.
The companies will use the money during the next nine months to explore the feasibility of their innovative concepts. They will then be eligible to compete for awards up to $1 million under a two-year, Phase II of research and development.