Samarium oxide
Samarium is light yellow, which is the raw material of samarium cobalt permanent magnet. Samarium cobalt magnet is the first rare earth magnet to be used in industry. There are two kinds of permanent magnets: SmCo5 system and Sm2Co17 system. SmCo5 system was invented in the early 1970s, and Sm2Co17 system was invented in the late 1970s. Now it is the needs of the latter. The purity of samarium oxide used in SmCo magnets does not need to be too high. Considering the cost, about 95% of the products are mainly used. In addition, samarium oxide is also used in ceramic capacitors and catalysts. In addition, samarium also has nuclear properties, which can be used as structural material, shielding material and control material of atomic energy reactor, so that the huge energy generated by nuclear fission can be used safely.
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