Abstract With their excellent magnetic performance, Nd-Fe-B magnets have a large share of the permanent magnet market, even after the sudden rise in the price of rare earths in 2011, which have been supported by magnet manufacturers' efforts to save heavy rare earths. The demand for high performance magnets is expected to increase, and both magnet users and manufacturers therefore welcome alternative magnets containing less or no rare earths. A knowledge of thermodynamics and understanding of the mechanism of coercivity of Nd-Fe-B may become very useful to develop processes for new magnets. Furthermore, cost-performance must never be neglected in practical use.

中文翻译：

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稀土永磁的现状和未来

摘要 Nd-Fe-B 磁体凭借其优异的磁性能，即使在 2011 年稀土价格突然上涨之后，也得到了磁铁制造商为节约重稀土而努力的支持，在永磁体市场上仍占有较大份额。地球。对高性能磁铁的需求预计会增加，因此磁铁用户和制造商都欢迎含有较少或不含稀土的替代磁铁。热力学知识和对 Nd-Fe-B 矫顽力机制的理解可能对开发新磁体的工艺非常有用。此外，在实际使用中绝不能忽视性价比。