Affiliation:
1. Kumamoto University
2. Kagoshima University
3. Tohoku University
4. Aichi-Gakuin University
Abstract
Sm2Fe17Nx compound is a prospective candidate as a material for high performance
permanent magnets because of its good intrinsic magnetic properties with a Curie temperature
of 747K, a room-temperature anisotropy field of 14T and a room-temperature saturation
magnetization of 1.5T. However, Sm2Fe17Nx compound decomposes to -Fe and Sm nitride
above 873K and conventional powder metallurgy processing techniques fail to meet the
processing requirements. Shock consolidation is a viable alternative to process this compound.
Fully dense Sm2Fe17Nx bulk materials were fabricated by cylindrical explosive consolidation
technique using water as a pressure transmitting medium. Explosive consolidation is
performed under cold state and fully dense materials can be obtained without any degradation
of the characteristics of the powder states. Sound compacts were obtained without any cracks
or teas, and the value of (BH)max of Sm2Fe17Nx compact is 23.8 MGOe.
Publisher
Trans Tech Publications, Ltd.
Subject
Mechanical Engineering,Mechanics of Materials,Condensed Matter Physics,General Materials Science
Cited by
6 articles.
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