Abstract
A calorimetric method for measuring AC loss in long lengths of high temperature superconductor (HTS) at 77 K has been developed. Complementary systems with resolution down to 1 mW/cc have been installed at Oak Ridge National Laboratory (ORNL) and American Superconductor Corporation (ASC) and give consistent results, confirming the reliability of the technique. AC excitation fields up to 0.25 T and at 5 to 60 Hz are supplied by a multifilament BSCCO solenoid which has been in operation for over a year; this is the world’s first HTS magnet system that performs a useful technical function in a cost-competitive manner. Results are presented on 85 filament BSCCO composite conductors showing dependence suggesting hysteretic losses.
This is a preview of subscription content, log in via an institution.
Buying options
Tax calculation will be finalised at checkout
Purchases are for personal use only
Learn about institutional subscriptionsPreview
Unable to display preview. Download preview PDF.
References
C.J. Christopherson and G.N. Riley Jr., “Development of Twisted High-Temperature Superconductor Composite Conductors,” Appl. Phys. Let., 66: 2277–79 (1995).
CJ. Christopherson and G.N. Riley Jr., “The Development of Twisted High-Temperature Superconducting Composites,” Submitted to the ICMC/CEM Conference held in Columbus, OH on July 17–22, 1995.
S. Fleshier, L. Cronis, G. Conway, A.P. Malozemoff, J. McDonald, T. Pe, J.R. Clem, G. Vellego, and P. Metra, “Measurement of the true ac power loss of Bi-2223 composite tapes using the transport technique,” submitted J. Appl. Phys. (1995).
W. Carter, G.N. Riley Jr., A. Otto, D.R. Parker, C.J. Christopherson, and L.J. Masur, “ Advances in the development of silver sheathed (Bi,Pb) 2223 compoiste conductors,” IEEE Trans, on Applied Superconductivity, 5, 1145–1149(1995).
Schmidt, C. “Calorimetric ac loss measurement in the microwatt range: a new simplified measuring technique”, Cryogenics 34, 3(1994)
K. Kwasnitza and St. Clerc, “AC losses of superconducting high-Tc multifilamentary Bi-2223/Ag sheathed tapes in perpendicular magnetic fields,” Physica C 223: 423–435 (1994).
M. N. Wilson, Superconducting Magnets, Oxford Press, (1983).
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 1996 Springer Science+Business Media New York
About this chapter
Cite this chapter
Aized, D., Jones, E.C., Snitchler, G., Campbell, J., Malozemoff, A.P., Schwall, R.E. (1996). AC Loss Measurements on Multifilamentary BSCCO 2223 High-Temperature Superconductors. In: Summers, L.T. (eds) Advances in Cryogenic Engineering Materials . Advances in Cryogenic Engineering Materials , vol 42. Springer, Boston, MA. https://doi.org/10.1007/978-1-4757-9059-7_77
Download citation
DOI: https://doi.org/10.1007/978-1-4757-9059-7_77
Publisher Name: Springer, Boston, MA
Print ISBN: 978-1-4757-9061-0
Online ISBN: 978-1-4757-9059-7
eBook Packages: Springer Book Archive