High performance superconducting joint for MgB2 films
| Autor: | Xinwei Cai, Zizhao Gan, Zigeng Huang, Wenhao Luo, Hong-Zhang Wang, C. Q. Guo, Qingrong Feng, Yan Zhang |
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| Rok vydání: | 2021 |
| Předmět: |
010302 applied physics
Superconductivity Materials science business.industry Superconducting radio frequency Energy Engineering and Power Technology Condensed Matter Physics 01 natural sciences Electronic Optical and Magnetic Materials Magnetic field Quality (physics) 0103 physical sciences Superconducting critical temperature Optoelectronics Electrical and Electronic Engineering Thin film 010306 general physics business Joint (geology) Sol-gel |
| Zdroj: | Physica C: Superconductivity and its Applications. 584:1353863 |
| ISSN: | 0921-4534 |
| DOI: | 10.1016/j.physc.2021.1353863 |
| Popis: | Large-area high-quality MgB2 thin films were needed in many superconducting applications such as superconducting radio frequency (RF) cavities. However, fabricating large films with high quality can be difficult. Thus, a jointing method between MgB2 films can be crucial in a lot of superconducting electronic applications. In this article, we successfully fabricated superconducting joints for MgB2 films. The sol-gel of Mg(BH4)2·Et2O was used as the glue. Two types of MgB2 joints were shown in this work, a two-piece face-to-face joint, and a three-piece bridging joint. The sol-gel derived MgB2 joints have shown very good superconducting performance, with a high superconducting critical temperature (TC) of 40 K, a high critical current (IC) of 340 mA at 0 T, and very nice current capacity in magnetic fields up to 4 T. |
| Databáze: | OpenAIRE |
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