Alternating current losses in YBa2Cu3O7−x coated conductors on technical substrates
Alternating current losses in YBa2Cu3O7−x coated conductors on technical substrates
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技术基材上 YBa2Cu3O7−x 涂层导体的交流损耗
DOI：
10.1063/1.1288505
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发表时间：
2000
影响因子：
3.2
通讯作者：
J. Willis
中科院分区：
文献类型：
--
作者：
S. Ashworth;M. Maley;M. Suenaga;S. Foltyn;J. Willis
我们报告了技术基板上 YBa2Cu3O7−x 导体交流损耗的测量结果。样品取自在制造过程中通过离子束辅助沉积步骤生产的 1 m 长导体，产生 1 cm 宽的导体，其临界电流在 77.4 K 下接近 100 A。通过量热法测量了交流传输电流和交流磁场组合造成的损耗，并将结果与理论估计值进行了比较。虽然我们的测量结果与理论估计相似，但定性行为存在一些重要差异。
We report on measurements of the ac losses of YBa2Cu3O7−x conductors on technical substrates. The samples are taken from conductors 1 m long produced with an ion beam assisted deposition step in the manufacturing process yielding 1 cm wide conductors with critical currents approaching 100 A at 77.4 K. The losses due to combinations of ac transport currents and ac magnetic fields were measured calorimetrically and the results compared to theoretical estimates. While the results of our measurements are similar to the theoretical estimates, there are some important differences in the qualitative behavior.