search

Find People

Advanced Energy Materials Group

Homepage | Contacts

Introduction: First generation (1G) Bi-Sr-Ca-Cu-O wire

The first-generation (1G) wire is the workhorse of the present-day HTS industry, with many hundreds of kilometres of tape produced for various demonstration projects, primarily power cables and motors. 1G tape is made by packing Bi–Sr–Ca–Cu–O (BSCCO) superconducting powder into a silver tube. BSCCO is a complex oxide superconductor of cuprate family with critical temperature 115 K. Following a series of rolling and heating steps the end product is a 4-mm-wide tape capable of carrying over 100 A at liquid nitrogen temperature and flexible enough to be used in the electric power applications.

 

 

 

 

 

 

 

 

 

Structure of BSCCO material

Cross-sections of several types of 1G wire produced by the American Superconductor Corporation. The individual strand is 0.2 mm by 4 mm with a critical current of the order of 125 A in zero field at 77 K. White is silver metal; gray is superconductor filament .

 

Top of Page

Last Modified: February 3, 2010
Please forward all questions about this site to: Robert Sundling
 
 


DOE, Office of Science One of ten national laboratories overseen and primarily funded by the Office of Science of the U.S. Department of Energy (DOE), Brookhaven National Laboratory conducts research in the physical, biomedical, and environmental sciences, as well as in energy technologies and national security. Brookhaven Lab also builds and operates major scientific facilities available to university, industry and government researchers. Brookhaven is operated and managed for DOE's Office of Science by Brookhaven Science Associates, a limited-liability company founded by the Research Foundation for the State University of New York on behalf of Stony Brook University, the largest academic user of Laboratory facilities, and Battelle, a nonprofit, applied science and technology organization.

Privacy and Security Notice  | Contact Web Services for help