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Author Matsumoto, F. ♦ Sakamoto, H. ♦ Komiya, M. ♦ Fujikura, M.
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword MATERIALS SCIENCE ♦ BORON ALLOYS ♦ MAGNETIC PROPERTIES ♦ MICROSTRUCTURE ♦ IRON BASE ALLOYS ♦ NEODYMIUM ALLOYS ♦ PERMANENT MAGNETS ♦ PERFORMANCE ♦ ALUMINIUM ADDITIONS ♦ CURIE POINT ♦ SILICON ADDITIONS ♦ ALLOYS ♦ ALUMINIUM ALLOYS ♦ CRYSTAL STRUCTURE ♦ IRON ALLOYS ♦ MAGNETS ♦ PHYSICAL PROPERTIES ♦ RARE EARTH ALLOYS ♦ SILICON ALLOYS ♦ THERMODYNAMIC PROPERTIES ♦ TRANSITION TEMPERATURE ♦ Metals & Alloys- Physical Properties ♦ Metals & Alloys- Preparation & Fabrication
Abstract The effects of Si and Al on magnetic properties of melt-spun Nd-Fe-B base alloy permanent magnets were studied. The addition of Si to the Nd-Fe-B base alloy improves magnetic properties: it especially increases the maximum energy product (BH)/sub max/ up to 20 MG Oe, remanence B/sub r/ over 9 kG, and decreases intrinsic coercive force /sub i/H/sub c/. The addition of Si also increases Curie temperature and decreases reversible temperature coefficient. The combined addition of Si and Al spreads wheel surface velocity ranges to obtain (BH)/sub max/>15 MG Oe and B/sub r/>9 kG compared to the addition of Si only. The origin of high performance is discussed.
Educational Use Research
Learning Resource Type Article
Publisher Date 1988-04-15
Publisher Department RandD Laboratories-I, Nippon Steel Corporation, 1618 Ida Nakahara-ku, Kawasaki 211, Japan
Publisher Place United States
Journal J. Appl. Phys.
Volume Number 63
Issue Number 8
Organization RandD Laboratories-I, Nippon Steel Corporation, 1618 Ida Nakahara-ku, Kawasaki 211, Japan


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