Abstract
Abstract Depending on composition two ternary phases with uniaxial magnetic anisotropy are observed in iron-rich SmFeTi. Both can be magnetically hardened by rapid quenching. For Sm(Fe,Ti) 12 , the magnetic properties are inferior to NdFeB. They can be improved by moderate additions of cobalt, whereas for high cobalt concentrations the coercivity and the remanence decrease. With the A 2 SmFeTi phase, extremely high coercivities of more than 40 kA cm −1 can be achieved, which are two to three times above typical values of NdFeB.
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