Rare earth element (REE) Nd-Fe-B and Sm-Co permanent magnets
Rare earth element (REE) Nd-Fe-B and Sm-Co permanent magnets Rare earth element (REE) established Nd-Fe-B and Sm-Co permanent magnets are widely used due to their excellent magnetic properties. An electric car like GM''s Chevrolet Volt utilizes seven pounds of rare-earth magnets, while every clean-energy wind turbine uses over 600 pounds of neodymium (Nd). China accounts [...]