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稀土钴永磁体广泛用于电子、仪表及航天等工业。它具有独特的磁性能,代替铁氧体或AlNiCo后,能节约能源,缩小体积,减轻重量,提高极限磁通密度。美国钼公司于81年末估计,今后3～5年内钐钴应用的年增长率为10～15％。最近,该公司又概述了钐钴磁体应用的发展,认为由于电子器件的日趋微型化,钐钻磁体的应用日益增多,在市场上特别引人注目。钐钻磁粉的永磁性比一般材料大4～10倍,最大磁能积可达37MGOe。用钐钴磁体制得的耳机小而轻,频率宽阔,能达到高保真度。日本索尼公司两年前推销的行人牌(Walkman)便携式盒式收录机,在马达和耳机中就采用了钐钴磁体。
Rare earth cobalt permanent magnets are widely used in electronics, instrumentation and aerospace and other industries. It has a unique magnetic properties, instead of ferrite or AlNiCo, can save energy, reduce size, reduce weight, increase the limit flux density. US Molybdenum Company estimated at the end of 81 that annual growth rate of samarium-cobalt-based applications will be 10-15% in the next 3-5 years. More recently, the company outlined the development of samarium-cobalt magnets and concluded that samarium-based magnets are gaining traction in the market due to the increasing miniaturization of electronic components. Samarium powder magnetic permanent magnet than the general material 4 to 10 times the maximum energy product up to 37MGOe. Samarium cobalt magnet headphone made of small and light, wide frequency, high fidelity can be achieved. Sony Walkman portable cassette recorders, which were marketed two years ago, employ samarium-cobalt magnets in motors and headphones.