A residual magnetic material due to the grinding of Sm2Co17 based magnets was processed. Sm2(Co,Fe,Cu,Zr)13,8 metal ratio may be deduced from the elemental analysis of the dry sample.
Mayor impurities were removed from the starting material, than it was dried, molded, compressed (with or without magnetization) and sintering at 800 1000 °C. The initial powder shows magnetization of 0,44 T, while the processed one in the external magnetic field shows 0,51 T, which is comparable to magnetic properties of the industrial Sm2Co17 magnets. On the other hand, the prepared magnet without applied external magnetic field shows magnetization 0,40 T, while if applied it shows 0,41 T. This capacity is however not lasting, as the magnetization completely disappears within a day. Probable reason for early disappearance of the processed sample magnetic properties lays in additional oxygen presence (w ~ 0,05), bound to the sample at grinding, enabling formation of oxides, consequently disabling direct metal-metal bondings.
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