Abstract
A mathematical model of equivalent bending radius was used to analyze the effect of bending strain on the critical current of yttrium barium copper oxide (YBCO) tapes in distorted bending mode. The relationship between critical current and twist pitch under different bending radii was measured. For enough larger twist pitch, even though the bending radius was smaller than the critical bending radius, the equivalent bending radius was always greater than the critical bending radius. Only when the bending radius was less than the critical bending radius and the twist pitch was reduced to a certain extent, the equivalent bending radius was smaller than the critical bending radius. As a consequence, the critical current dropped sharply and cannot be restored. The model and analytical equation was feasible and can be used for the design of solenoid YBCO magnet.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Chen, M., Donzel, L., Lakner, M., Paul, W.: J. Eur. Ceram. Soc. 24, 1815–1822 (2004)
Zhang, J., Dai, S., Zhang, D., Wang, Z., Song, N., Xu, X., Zhang, Z., Zhu, Z., Gao, Z., Lin, L., Xiao, L.: IEEE Trans. Appl. Superconduct. 22, 5700504 (2012)
Shin, H.S., Dedicatoria, M.J., Dizon, J.R.C., Ha, H.S., Oh, S.S.: Physica C 469, 1467–1471 (2009)
Sytnikov, V.E., Vysotsky, V.S., Radchenko, I.P., Polyakova, N.V.: J. Phys.: Conf. Ser. 97, 012058 (2008)
Li, W.Y., Niu, X.J., Su, H., Chen, W., Peng, S.S., Zheng, J.: IEEE Int. Conf. Appl. Superconduct. Electrom. Dev, 177–179 (2013)
Wang, Y., Zheng, Y., Liu, H., Dai, S., Zhang, H., Guan, X., Teng, Y., Zhao, L., Xue, J., Lin, L.: IEEE T. Appl. Supercon 21, 1042–1045 (2011)
Miyagi, D., Takahashi, N., Torii, S., Ueda, K., Yasuda, K.: IEEE T. Appl. Supercon. 16, 1614–1617 (2006)
Joo, J-H., Kim, S-W., Kim, H. J., Song, K.J., Hon, J-P.: IEEE T. Appl. Supercon. 14, 666–669 (2004)
Takayasu, M., Chiesa, L., Bromberg, L., Minervini, J.V.: Supercon. Sci. Tech. 25, 1–21 (2012)
Sytnikov, V.E., Radchenko, I. P., Shutov, K.A., Vysotsky, V.S.: IEEE T. Appl. Supercon 19, 1770–1773 (2009)
Polak, M., Barnes, P.N., Mozola, P., Levin, G.A.: IEEE T. Appl. Supercon. 19, 2921–2924 (2009)
Markiewicz, W., Swenson, C.: Supercon. Sci. Tech. 23, 1–12 (2010)
Kiss, T., Inoue, M., Kuga, T., Ishimaru, M., Egashira, S.: Physica C 392–396, 1053–1062 (2003)
Acknowledgments
The research was supported by the Program of International S&T Cooperation (2013DFA51050), the National Magnetic Confinement Fusion Science Program (2011GB112001), the National Natural Science Foundation of China (51271155, 51002125, 51377138), the Fundamental Research Funds for the Central Universities (SWJTU12CX18, SWJTU11ZT31, 2682015ZT-11, 2682013CX004), and the Science Foundation of Sichuan Province (2011JY0031, 2011JY0130).
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Zhu, Y., Yi, P., Sun, M. et al. The Study of Critical Current for YBCO Tape in Distorted Bending Mode. J Supercond Nov Magn 28, 3519–3523 (2015). https://doi.org/10.1007/s10948-015-3224-1
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s10948-015-3224-1