Samarium-cobalt is a type of rare-earth magnet made from an alloy of samarium and cobalt. These magnets are known for their strong magnetic properties and high resistance to demagnetization, making them ideal for various applications, including motors, sensors, and magnetic bearings. One of the key advantages of samarium-cobalt magnets is their ability to operate at high temperatures, often exceeding 300 degrees Celsius. This makes them suitable for use in demanding environments, such as aerospace and military applications, where reliability and performance are critical.