Definition of Samarium–cobalt magnet
Samarium–cobalt (SmCo) magnets belong to the category of rare-earth magnets and are composed of samarium (Sm), a rare-earth element, and cobalt (Co), a transition metal. They are among the strongest permanent magnets.
They were developed in the early 1960s based on work done by Karl Strnat at Wright-Patterson Air Force Base and Alden Ray at the University of Dayton. In particular, Strnat and Ray developed the first formulation of SmCo5.
Samarium–cobalt magnets are generally ranked similarly in strength to neodymium magnets, but have higher temperature ratings and higher coercivity.
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Frequently asked questions
What is Samarium–cobalt magnet?
Samarium–cobalt (SmCo) magnets belong to the category of rare-earth magnets and are composed of samarium (Sm), a rare-earth element, and cobalt (Co), a transition metal. They are among the strongest permanent magnets.