US 11,894,508 B2
Second-generation HTS strip and preparation method thereof
Yue Zhao, Shanghai (CN); Donghong Wu, Shanghai (CN); Guangyu Jiang, Shanghai (CN); Chunsheng Cheng, Shanghai (CN); Jiamin Zhu, Shanghai (CN); Wei Wu, Shanghai (CN); Yijun Ding, Shanghai (CN); and Zhijian Jin, Shanghai (CN)
Assigned to Shanghai Superconductor Technology Co., Ltd., Shanghai (CN); and Shanghai Jiao Tong University, Shanghai (CN)
Filed by Shanghai Superconductor Technology Co., Ltd., Shanghai (CN); and SHANGHAI JIAO TONG UNIVERSITY, Shanghai (CN)
Filed on Apr. 27, 2022, as Appl. No. 17/731,236.
Application 17/731,236 is a continuation of application No. PCT/CN2021/112263, filed on Aug. 12, 2021.
Claims priority of application No. 202110491577.7 (CN), filed on May 6, 2021.
Prior Publication US 2022/0359810 A1, Nov. 10, 2022
Int. Cl. H01L 39/24 (2006.01); H01L 39/14 (2006.01)
CPC H01L 39/2435 (2013.01) [H01L 39/143 (2013.01)] 4 Claims
OG exemplary drawing
 
1. A second-generation high-temperature superconducting (HTS) strip, comprising: a superconducting strip body and a stabilizing layer arranged on at least one side of the superconducting strip body; wherein the stabilizing layer is a copper-graphene composite film, and a mass fraction of graphene in the stabilizing layer is in a range from 0.1% to 1%;
wherein the graphene is dispersed in a copper layer of the stabilizing layer, or the graphene is discontinuously distributed in the form of a layer;
wherein the stabilizing layer is deposited on one side or two opposite sides of the superconducting strip body by a copper-graphene double-target co-sputtering vapor deposition method through a sputter coating process;
wherein a coating temperature does not exceed 200° C. in the sputter coating process.