在没有重稀土元素的情况下开发高性能热变形铁磁铁
1Corporate Research & Development Center, Daido Steel Co., Ltd., 2-30 Daido-cho, Minami-ku, Nagoya 457-8545, Japan.
Materials (Basel, Switzerland)
|October 14, 2023
概括
热变形的铁磁铁提供了一种解决方案,以减少对绿色车辆引机中稀缺的重稀土元素的依赖. 控制它们的微观结构是保持高强制性的关键,如果没有这些关键材料.
科学领域:
- 材料科学 材料科学 材料科学
- 磁力学 磁力学 是一种
- 绿色技术 绿色技术是一种绿色技术.
背景情况:
- -铁- (Nd-Fe-B) 磁铁对于绿色车辆引力发动机至关重要,因为它们的最大能量产量很高.
- 传统的Nd-Fe-B磁铁需要重型稀土元素 (二,三) 来抵抗热量,这就引发了资源稀缺的问题.
- 开发稀土薄或无稀土磁铁对于可持续的电动交通至关重要.
研究的目的:
- 为提供热变形 Nd-Fe-B 磁铁的概述.
- 通过控制它们的微观结构来探索改善这些磁铁性能的策略.
- 为了应对降低重稀土元素含量的挑战,同时保持高强制性.
主要方法:
- 关于热变形Nd-Fe-B磁铁的现有文献的综述.
- 对微观结构控制技术进行分析,以增强磁性.
- 研究消除或减少重稀土元素的方法.
主要成果:
- 热变形的Nd-Fe-B磁铁具有细微的微观结构,即使在减少重稀土含量的情况下,也能实现高强制性.
- 微结构工程是一种有前途的方法,可以克服传统的Nd-Fe-B磁铁的局限性.
- 这些磁铁正作为可行的替代品引起人们的注意,特别是在最近稀土供应链中断之后.
结论:
- 热变形的Nd-Fe-B磁铁是可持续的高性能永久磁铁的关键研究领域.
- 对微观结构控制的进一步研究可以释放这些磁铁的全部潜力,用于苛刻的应用.
- 优化热变形工艺对于制造先进的Nd-Fe-B磁铁,减少对关键原材料的依赖至关重要.
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