| ‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘ KAWASAKI STEEL TECHNICAL REPORT No.23 ( October 1990 ) R&D of High-Technology Research Laboratories, Commemorating the 20th Anniversary of the Technical Research Division ‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘ |
| Magnetic Properties and Corrosion Characteristics of Nd-(Fe, Co, Ni)-B Pseudo-Ternary Systems Yasutaka Fukuda, Akira Fujita, Michio Shimotomai |
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Synopsis : Nd15(Fe1-x-yCoxNiy)77B8 pseudo-ternary magnet materials have been studied with respects to the Curie temperature, saturation magnetization, intrinsic coercivity and corrosion characteristics. Substituted Co and Ni atoms enhance the saturation magnetization and intrinsic coercivity locally for composition ranges of 0.20 x 0.40 and 0 y 0.20. Marked improvement in corrosion resistance is observed for y 0.05 and x 0.30 in 95% relative humidity at 75. A possibility of corrosion-resistant Nd magnets with intrinsic coercivity more than 10 kOe and energy product up to 30 MGOe is indicated by a further addition of Ti to the systems. |
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