Sensitivity of the Field Trapped by Superconducting Bulks on the Parameters of the Magnetization Process
Sensitivity of the Field Trapped by Superconducting Bulks on the Parameters of the Magnetization Process
复制标题
超导体俘获场对磁化过程参数的敏感性
DOI：
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发表时间：
2006
影响因子：
1.8
通讯作者：
P. Ribani
中科院分区：
文献类型：
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作者：
M. Fabbri;A. Morandi;F. Negrini;P. Ribani
材料加工的最新进展使得能够制造具有捕获比常规永磁体强得多的磁场的潜力的大的单晶粒YBCO块体，从而为电力电机领域的新应用开辟了道路。然而，为YBCO块材找到一个广泛的用途，一个合适的磁化过程必须开发。事实上，俘获场的值以及相对于时间的稳定性和轮廓的形状强烈地依赖于磁化过程的参数，即，所施加的场的峰值和波形以及体的操作温度。在本文中，这样的依赖性进行了数值研究
Recent progress in material processing has enabled the fabrication of large single grain YBCO bulks having the potential to trap a magnetic field much stronger than that of conventional permanent magnets, thus opening the way to new applications in the field of power electric machinery. However, for YBCO bulks to find a broad use, a suitable magnetization process must be developed. In fact, the value of the trapped field as well as the stability with respect to the time and the shape of the profile strongly depend on the parameters of the magnetization process, i.e. the peak value and the waveform of the applied field and the operating temperature of the bulk. In this paper such a dependence is numerically investigated