Uses of Samarium
Samarium’s main use is in samarium-cobalt alloy magnets for headphones, small motors and pickups for some electric guitars. These magnets have a high resistance to demagnetization. They keep their ferromagnetism at temperatures up to 700 oC. (3) As a result of their ability to operate at high temperatures, SmCo magnets are used in precision-guided weapons.
Samarium oxide (samaria) is used as a catalyst for the dehydration and dehydrogenation of ethanol. Samarium oxide is also used in infrared absorbing glass.