Abstract
This paper presents measurements on polymer bonded NdFeB permanent magnets. These permanent magnets are fabricated by mixing NdFeB ribbons and binder epoxy resin under 5 ton/cm 2 pressure. The ribbons of NdFeB alloy are prepared by melt-spinning process. The performances of ribbon quenched at different rates and polymer bonded magnet are investigated by x-ray diffraction, DTA, SEM and VSM. The crystal lattice constants of the main phase Nd 2Fe 14B are found to be a = 8.73 Å, c = 12.48 Å. Effect of annealing at different temperature and time are also investigated.
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