Microstructure and high temperature magnetic properties of Sm(Co, Cu, Fe, Zr)z (z=6.7–9.1) permanent magnets
作者： J. F. Liu , Y. Zhang , D. Dimitrov , G. C. Hadjipanayis
DOI: 10.1063/1.369597
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摘要: The effect of ratio z on the high temperature magnetic properties Sm(Co, Fe, Cu, Zr)z magnets have been examined in a range values from 6.7 to 9.1. Reasonably coercivity at room has achieved all magnets. It was found that lower z, smaller coefficient coercivity. When z=7.0, −0.03%/°C can be achieved, which is more than eight times magnet with z=8.5. A 10 kOe obtained 773 K for newly developed magnets, believed highest ever reported. Transmission electron microscope studies showed cell size decreases decrease while density lamella phase remains almost same. This suggests leads intrinsic
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