Explosive consolidation of Sm-Fe-N and Sm-Fe-N/(Ni, Co) magnetic powders

Abstract Explosive consolidation of Sm 2 Fe 17 N x and Sm 2 Fe 17 N x /(Ni or Co) magnetic powders were attempted to consolidate fully dense magnetic compacts. Dense Sm 2 Fe 17 N x and Sm 2 Fe 17 N x /(Ni or Co) bulk materials were obtained by cylindrical explosive consolidation technique using water as a pressure transmitting medium. The values of ( BH ) max of Sm 2 Fe 17 N x , Sm 2 Fe 17 N x –5 wt%Ni and Sm 2 Fe 17 N x –30 wt%Co magnets obtained were 23.8, 16.3 and 17.5 MGOe (190, 130 and 140 kJ / m 3 ) , respectively.