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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Kawabata, S. Tsuzura, H. |
| Copyright Year | 2002 |
| Abstract | To clarify the influence of the bending strain on transverse-field losses in NbTi multifilamentary superconducting wires with Cu matrix, we experimentally investigated AC loss characteristics of solenoidal sample coils with various curvatures. The total AC loss including the hysteresis loss and the coupling loss of sample coils was measured by the pickup coil method in an alternating transverse magnetic field with an amplitude of 1 T at 4.2 K in the frequency range between 0.01 Hz and 1 Hz. After the measured total loss was separated into the hysteresis loss and the coupling loss, each loss characteristics was studied. Measured data showed that the hysteresis loss was almost unchanged when the bending strain of the sample wire was within about 5%. On the other hand, the coupling loss decreased with an increase of the bending strain and the percentage of the decrease was about 15% when the bending strain was 5%. From the results of the conductivity measurement of Cut matrix, the decrease of coupling current loss due to the bending strain was quantitatively explained by the degradation of the conductivity of Cu matrix. In addition, the comparison between the experimental and theoretical results of the coupling time constant was discussed. |
| Sponsorship | Council on Superconductivity Appl. Superconductivity Conference Inc MIT |
| Starting Page | 1620 |
| Ending Page | 1623 |
| Page Count | 4 |
| File Size | 270707 |
| File Format | |
| ISSN | 10518223 |
| Volume Number | 12 |
| Issue Number | 1 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2002-03-01 |
| Publisher Place | U.S.A. |
| Access Restriction | One Nation One Subscription (ONOS) |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Capacitive sensors Niobium compounds Titanium compounds Superconducting filaments and wires Magnetic field measurement Superconducting coils Magnetic hysteresis Loss measurement Strain measurement Couplings |
| Content Type | Text |
| Resource Type | Article |
| Subject | Condensed Matter Physics Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering |
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