铜稳定多丝 YBCO 涂层导体的交流损耗
超导电性
2018-07-04 v2 材料科学
摘要
我们报告了铜稳定多丝涂层导体的磁化损耗和临界电流数据。将 commercially 制造的 8 厘米长铜稳定 YBa2Cu3O7-x (YBCO) 涂层导体样品通过近红外激光微加工细分为超导丝。超导条带的宽度从 0.2 mm 变化到 0.04 mm。部分样品进行了刻槽处理，保留了超导桥以实现丝间的电流共享。在不同磁场扫描速率（高达 14 T/s）下测量了交流损耗。我们将展示磁滞损耗和耦合损耗的结果，并讨论通过改变微加工处理参数和后烧蚀处理来降低耦合损耗的方法。
引用
@article{arxiv.1212.0452,
title = {AC Losses of Copper Stabilized Multifilament YBCO Coated Conductors},
author = {G. A. Levin and J. Murphy and T. J. Haugan and J. Šouc and J. Kováč and P. Kováč},
journal= {arXiv preprint arXiv:1212.0452},
year = {2018}
}
备注
In the first version of this preprint the value of copper resistivity used for calculating eddy current losses was ten times lower than the actual value. Please don't ask how that could have happened. Correspondingly, the conclusions described in the first column on page 4 were wrong and are now corrected