大量MgB2超导材料:技术,性能和应用
Tetiana Prikhna1,2,3,4, Vladimir Sokolovsky5, Viktor Moshchil1
1V. Bakul Institute for Superhard Materials, National Academy of Sciences of Ukraine, 2, Avtozavodska Str., 07074 Kyiv, Ukraine.
Materials (Basel, Switzerland)
|June 19, 2024
概括
二 (MgB) 大量超导体在技术中提供了有前途的应用. 优化制造压力-温度条件和添加物增强了它们对各种设备的超导特性.
科学领域:
- 材料科学 材料科学 材料科学
- 凝聚物质物理学 凝聚物质物理学
- 超导电性 超导电性 超导电性
背景情况:
- 二化物 (MgB) 是一种具有成本效益的散装超导体,在技术中具有潜在的应用.
- 它在液温度 (约20K) 的有效性使其适用于磁铁,故障电流限制器和电机等设备.
- 高度的机械和化学稳定性以及优越的超导特性对于这些应用至关重要.
研究的目的:
- 审查基于MgB2的散装材料的超导和结构性质研究.
- 分析制造过程中的压力-温度条件和超导特性之间的相关性.
- 调查杂质,过量和各种添加剂对MgB2特性的影响.
主要方法:
- 综述了涉及热压 (30MPa),火花等离子体烧结 (16-96MPa) 和高准水静压 (2GPa) 的研究.
- 分析超导特性 (例如,临界温度,临界电流密度) 和结构特征.
- 处理参数,材料组成和由此产生的超导性能之间的相关性分析.
主要成果:
- 不同的压力-温度条件显著影响MgB的超导和结构性质.
- 氧气杂质和过量的含量会影响超导特性,最佳水平取决于应用.
- 添加和结构修改可以增强MgB2批量属性,用于特定的温度和磁场范围.
结论:
- 定制制造工艺和材料组成可以优化MgB2散装超导体.
- 选择最佳技术取决于预期应用的具体要求,例如故障电流限制器或电机.
- 基于MgB2的材料为新兴技术领域的先进超导装置提供了可行的选择.
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