Abstract
Permanent magnets with highest energy density products and coercive forces are based on rare-earth (RE) intermetallic compounds. In the “single phase” RECo5 sintered magnets the coercivity is determined by the nucleation field and expansion field of reversed domains1,2. In precipitation hardened “multi phase” Sm2 Co17 sintered magnets the high coercive force is obtained by the pinning of magnetic domain walls at the cell boundaries of a continuous precipitation structure1,3. The newly developed rare-earth iron permanent magnet materials exhibit higher energy density products and remanences than the rare-earth cobalt permanent magnetic materials4,5.
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Fidler, J., Skalicky, P., Rothwarf, F. (1985). Analytical Electron Microscopy of Rare-Earth Permanent Magnet Materials. In: Grasserbauer, M., Wegscheider, W. (eds) Progress in Materials Analysis. Mikrochimica Acta Supplementum, vol 11. Springer, Vienna. https://doi.org/10.1007/978-3-7091-8840-8_28
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DOI: https://doi.org/10.1007/978-3-7091-8840-8_28
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