Microstructure design of second generation MgB2 superconducting wires for enhancement of critical current density

提高临界电流密度的第二代MgB2超导线材微观结构设计

• 批准号: DE140101333
• 负责人: Dr Zongqing Ma
• 金额: $ 26.35万
• 依托单位: University of Wollongong
• 依托单位国家: 澳大利亚
• 项目类别: Discovery Early Career Researcher Award
• 财政年份: 2014
• 资助国家: 澳大利亚
• 起止时间: 2014-03-31 至 2017-12-31
• 项目状态: 已结题
• 来源: https://dataportal.arc.gov.au/RGS/Web/Grants/DE140101333
• 关键词: Microstructure; design; second; generation; MgB2

Magnesium diboride (MgB2) superconducting wires have outstanding potential for a diverse range of commercial applications. However, the critical current density in MgB2 wires is still comparatively low, which represents the biggest obstacle in terms of their practical applications. This project will further enhance the critical current density in second generation MgB2 wires prepared by an optimised internal magnesium diffusion process through addressing fundamental issues and designing appropriate microstructure. The research outcomes will be extremely beneficial to fundamental research and to the potential application of MgB2 superconductors. High-performing, low-cost second generation MgB2 wires are also expected to be developed in this project.

二硼化镁（MgB2）超导线具有广泛的商业应用潜力。然而，MgB2线的临界电流密度仍然比较低，这是其实际应用的最大障碍。本项目将通过解决基本问题和设计合适的微观结构，进一步提高第二代镁扩散工艺制备的MgB2线的临界电流密度。研究成果对MgB2超导体的基础研究和潜在应用具有重要意义。高性能、低成本的第二代MgB2电线也有望在该项目中开发出来。