Abstract：PrNd alloys with different carbon content were applied to preparation of the nominal compositions of (PrNd)30.7Cu0.2FebalB0.98 (mass fraction%) magnets. Effects of carbon content on the magnetic properties and the microstructure of the magnets were investigated. The carbon content of the magnets was influenced by the carbon content of the PrNd alloys. The increase of carbon reduces the rare earth-rich phase in the magnets, and presents carbide-phase in the magnets, which lead to the decreasing of coercivity. The magnet has the best magnetic properties for Hcj=909 kA/m with the lowest carbon content for 335×10-6.
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2016, Vol. 23 
