超导 In Situ/Post In Situ MgB2 连接器的使用情况
Bartlomiej Andrzej Glowacki1,2
1Department of Materials Science and Metallurgy, University of Cambridge, 27 Charles Babbage Road, Cambridge CB3 0FS, UK.
Materials (Basel, Switzerland)
|October 14, 2023
概括
研究人员开发了一种热力学方法,用于连接超导二 (MgB) 线. 这种技术成功地创建了超导MgB2接头,达到单个电线的临界电流的50%.
科学领域:
- 材料科学 材料科学 材料科学
- 超导电性 超导电性 超导电性
- 应用物理 应用物理
背景情况:
- 现场MgB2线的超导接头对于NMR磁铁等应用至关重要.
- 连接完全反应的MgB2电线需要专门的方法,通常需要使用Mg + 2B混合物进行第二次热处理.
- 现有的文献介绍了各种方法,包括冷压和烧结,关于最佳技术的争论仍在进行中.
研究的目的:
- 研究并提出一种有效的热力学程序,用于在现场反应的MgB线之间创建超导接头.
- 为了应对在实际应用中连接预先烧结的MgB2线的挑战.
- 在临界电流方面评估开发的关节的性能.
主要方法:
- 开发了一种新的热力学程序,用于连接现场反应的MgB2线.
- 该过程涉及利用Mg + 2B流量来促进超导连接的形成.
- 形成的关节的临界电流 (Ic) 被测量在25K.
主要成果:
- 开发的热力学程序成功地在现场反应的MgB2线之间形成了超导连接.
- 研究节点的临界电流达到个体在25K的位置电线的Ic的50%.
- 该研究提供了对成功关节形成的界面要求的见解.
结论:
- 拟议的热力学程序提供了一种可行的方法,用于在MgB电线中创建超导接头.
- 取得的临界电流证明了这种方法在实际应用中的潜力.
- 进一步的研究可能会优化这一过程,以提高关节性能.
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