Hard magnetic properties of anisotropic Sm-Fe-N magnets produced by compression shearing method |
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| Authors: | Tetsuji Saito Hiroshi Kitazima |
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| Institution: | Department of Mechanical Science and Engineering, Chiba Institute of Technology, Tsudanuma, Narashino 275-0016, Japan |
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| Abstract: | Anisotropic Sm-Fe-N bulk magnets were produced by the compression shearing method using a hardened steel plate and a tungsten-carbide (WC) plate. It was found that the magnets retained the original Sm2Fe17N3 phase structure without any appreciable decomposition of the Sm2Fe17N3 phase. The anisotropic Sm-Fe-N bulk magnet produced using a WC plate had a higher density and higher crystallographic alignment of the Sm2Fe17N3 phase than that produced using a hardened steel plate, and exhibited high maximum energy products of 228 kJ/m3 with a high coercivity of 0.88 MA/m. |
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| Keywords: | Rare-earth permanent magnet Consolidation Magnetic property |
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