Title:
SECOND-GENERATION HIGH-TEMPERATURE SUPERCONDUCTING TAPE AND PREPARATION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2022/233100
Kind Code:
A1
Abstract:
Provided are a second-generation high-temperature superconducting tape (1) and a preparation method therefor. The second-generation high-temperature superconducting tape (1) comprises a superconducting tape (1) body, and a protective layer (2, 3), which is arranged on at least one side of the superconducting tape (1) body, wherein the protective layer (2, 3) is a copper-graphene composite film, and the total thickness of a single face of the protective layer (2, 3) is 2-30 micrometers. The preparation method comprises the following steps: (1) putting a superconducting tape (1) body into a magnetron sputtering reaction chamber, performing evacuation to a high degree of vacuum, and then filling a working gas; (2) starting sputtering coating by means of controlling magnetron sputtering power and taking copper and graphene as target materials, and depositing the target materials on a surface of the superconducting tape (1) body, so as to obtain a second-generation high-temperature superconducting tape (1) having a copper-graphene structure grown on a surface thereof. A prepared superconducting tape (1), which includes a copper-graphene high-strength and high-conductivity protective layer (2, 3), has a 30%-70% higher tensile strength than that of a traditional copper-electroplated superconducting tape, a conductivity attenuation is less than 10% IACS, and a critical current is not attenuated.
More Like This:
Inventors:
ZHAO YUE (CN)
WU DONGHONG (CN)
JIANG GUANGYU (CN)
CHENG CHUNSHENG (CN)
ZHU JIAMIN (CN)
WU WEI (CN)
DING YIJUN (CN)
JIN ZHIJIAN (CN)
WU DONGHONG (CN)
JIANG GUANGYU (CN)
CHENG CHUNSHENG (CN)
ZHU JIAMIN (CN)
WU WEI (CN)
DING YIJUN (CN)
JIN ZHIJIAN (CN)
Application Number:
PCT/CN2021/112263
Publication Date:
November 10, 2022
Filing Date:
August 12, 2021
Export Citation:
Assignee:
SHANGHAI SUPERCONDUCTOR TECH CO LTD (CN)
UNIV SHANGHAI JIAOTONG (CN)
UNIV SHANGHAI JIAOTONG (CN)
International Classes:
H01B12/06; H01B1/02; H01B12/00
Foreign References:
| CN108715992A | 2018-10-30 | |||
| CN108504976A | 2018-09-07 | |||
| CN113223773A | 2021-08-06 | |||
| CN103985479A | 2014-08-13 |
Other References:
LI SHUANGGYI, LI AIJUN; DAI DAN; LIU YING; WU YUMING; BAI HUA; LIN CHENG-TE: "Preparation, Properties and Application of Graphene/Cu Composite Materials", JOURNAL OF FUNCTIONAL MATERIALS, GAI-KAN BIANJIBU , CHONGQING, CN, vol. 48, no. 9, 30 September 2017 (2017-09-30), CN , pages 9043 - 9051, XP093000531, ISSN: 1001-9731
YU JIE, ZENG HONGLIANG; WEN YECHENG; MA XIAOYAN; LI XIULAN; LI XUAN; HU XINJUN: "Research Progress of Graphene Reinforced Copper Matrix Composites", CAILIAO-KEXUE-YU-GONGCHENG-XUEBAO= JOURNAL OF MATERIALS SCIENCE AND ENGINEERING / ZHEJIANG DAXUE CAILIAOXI, ZHEJIANG-DAXUE CAILIAO-XI, HANGZHOU, CN, vol. 39, no. 1, 20 February 2021 (2021-02-20), Hangzhou, CN , pages 167 - 173, XP093000537, ISSN: 1673-2812
YU JIE, ZENG HONGLIANG; WEN YECHENG; MA XIAOYAN; LI XIULAN; LI XUAN; HU XINJUN: "Research Progress of Graphene Reinforced Copper Matrix Composites", CAILIAO-KEXUE-YU-GONGCHENG-XUEBAO= JOURNAL OF MATERIALS SCIENCE AND ENGINEERING / ZHEJIANG DAXUE CAILIAOXI, ZHEJIANG-DAXUE
Attorney, Agent or Firm:
BEIJING FINELAND IP FIRM (CN)
Download PDF: