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A simple synthesis route for Nd2Fe14C compound with good permanent magnetic properties is presented.Being high-energy ball-milled in heptane(C7H16)for 8 hours,the NdFe3.5 alloy consisting of Nd2Fe17 and Nd phases disproportionates into NdH2+δ and α-Fe.Subsequently,NdH2+δ decomposes when annealed from room temperature to 900 ℃ under vacuum,and H2 is released.Meanwhile Nd2Fe14C,NdC and a little α-Fe phases are formed in the final product.The H and C atoms come from the decomposition of heptane.Coercivity of 1.39 T and maximum magnetic energy product of 62.7 kJ/m3 have been achieved.