High magnetic coercivity of neodymium‐ and didymium‐cobalt alloys sintered with Pr and Sm additives
1.K. J. Strnat, IEEE Trans. Magnetics MAG‐4, 182 (1970).
2.J. J. Becker, J. Appl. Phys. 41, 1055 (1970).
3.H. Bartholin, B. van Laar, R. Lemaire, and J. Schweizer, J. Phys. Chem. Solids 27, 1287 (1966).
4.E. Tatsumoto, T. Okamoto, H. Fujii, and C. Inoue, J. Phys. (Paris) 32, Cl‐550 (1971).
5.M. G. Benz and D. L. Martin, AIP Conference Proceedings No.5, Magnetism and Magnetic Materials—1971 (American Institute of Physics, New York, 1972), Pt. 2, p. 1082.
6.J. Schweizer, K. J. Strnat, and J. B. Y. Tsui, IEEE Trans. Magnetics MAG‐7, 429 (1971).
7.The didymium metal used was supplied by the Ronson Metals Corp. The typical analysis given is 70–75 wt% Nd, 17–19 wt% Pr, 0.3–0.5 wt% Ce, and 8–12 wt% other rare earths.
8.This Nd‐Co alloy and the Pr‐Co alloy used as the sintering additive were both prepared several years ago at the U.S. Bureau of Mines in Reno, Nev., by an electrowinning process. Both were remelted in the arc furnace.
9.H. Mildrum, J. Schweizer, and J. B. Y. Tsui (unpublished);
9.see also Ref. 1.
10.K. J. Stranat, J. B. Y. Tsui, and J. Schweizer in Proceedings of the 9th Rare Earth Conference (Virginia Polytechnic Institute and State University, Blacksburg, Va., 1971), Vol. I, p. 252.
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