Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1817450 | Physica C: Superconductivity and its Applications | 2015 | 5 Pages |
Abstract
AC losses of single-core MgB2 superconductors with different metallic sheaths (Cu, GlidCop, stainless steel and Monel) have been measured and analyzed. These wires were exposed to external magnetic field with frequencies 72 and 144Â Hz and amplitudes up to 0.1Â T at temperatures ranged from 18 to 40Â K. The obtained results have shown that applied metallic sheath can affect the measured AC loss considerably. In the case of GlidCop and Stainless Steel a negligible small effect of metallic sheath was observed. Strong contribution of eddy currents has been found in the wire with well conductive copper sheath. In the case of Monel sheath, the hysteresis loss of magnetic sheath is dominated and AC loss of MgB2 core is practically not visible.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Condensed Matter Physics
Authors
J. KováÄ, J. Å ouc, P. KováÄ, I. HuÅ¡ek,