Effects of annealing on the coercivity of Sm(Co,Fe,Cu,Zr)z ribbons and its temperature dependence
نویسندگان
چکیده
Sm(CobalFe0.1CuxZr0.03)7 (x = 0.0–0.25) ribbons have been prepared by melt spinning. The effects of annealing parameters on coercivity and its temperature dependence have been studied systematically. It is found that the melt-spinning technique remarkably improves the magnetic properties and simplifies the annealing process. The high-performance precipitation-hardened magnets can be obtained by only short-time ageing and slow cooling from 850 to 400 ◦C, without the standard solid solution. More interestingly, the temperature coefficient of coercivity of the ribbons can be tuned through adjustments of the processing parameters.
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