Accession Number:

ADA459915

Title:

Magnetization Losses in Multifilament Coated Superconductors (Postprint)

Descriptive Note:

Journal article

Corporate Author:

AIR FORCE RESEARCH LAB WRIGHT-PATTERSON AFB OH PROPULSION DIRECTORATE

Report Date:

2006-08-01

Pagination or Media Count:

5.0

Abstract:

We report the results of a study of the magnetization losses in experimental multifilament, as well as control uniform coated superconductors exposed to time-varying magnetic fields of various frequencies. Both the hysteresis loss, proportional to the sweep rate of the applied magnetic field, and the coupling loss, proportional to the square of the sweep rate, have been observed. A scaling is found that allows us to quantify each of these contributions and extrapolate the results of the experiment beyond the envelope of accessible field amplitude and frequency. The combined loss in the multifilament conductor is reduced by about 90 in comparison with the uniform conductor at full field penetration at a sweep rate as high as 3 Ts.

Subject Categories:

  • Electricity and Magnetism

Distribution Statement:

APPROVED FOR PUBLIC RELEASE