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Special features of Nd(Pr) – Dy – Fe – Co – B magnets with high content of Co

  • Magnetic Alloys
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Metal Science and Heat Treatment Aims and scope

The effect of cobalt content in sintered magnets of the Nd(Pr) – Dy – Fe – Co – B system on the sintering temperature, at which the density is equal to 99% of the maximum value and the coercive force H ci is the highest, is determined. The main components forming the liquid phase in sintering of the materials are determined. It is shown that the addition of (Pr, Dy)(Fe, Co)2B2 intermetallic to alloy (Pr, Dy) – (Fe1 – y Co y ) ( y ≈ 0.5) during the operation of fine milling of sintered magnets has a positive effect on the value of H ci .

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Authors and Affiliations

  1. All-Russia Institute for Aircraft Materials (FGUP VIAM), Moscow, Russia

    A. F. Petrakov & V. P. Piskorskii

  2. A. A. Baikov Institute for Metallurgy and Materials Science of the Russian Academy of Sciences, Moscow, Russia

    G. S. Burkhanov

  3. Ramenskoe Instrument-Making Design Office, Ramenskoe, Russia

    M. V. Repina

  4. A. A. Bochvar High-Technology Research Institute for Inorganic Materials, Moscow, Russia

    S. I. Ivanov

Authors
  1. A. F. Petrakov
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  2. V. P. Piskorskii
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  3. G. S. Burkhanov
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  4. M. V. Repina
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  5. S. I. Ivanov
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Corresponding author

Correspondence to V. P. Piskorskii.

Additional information

Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 7, pp. 3 – 9, July, 2012.

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Petrakov, A.F., Piskorskii, V.P., Burkhanov, G.S. et al. Special features of Nd(Pr) – Dy – Fe – Co – B magnets with high content of Co. Met Sci Heat Treat 54, 323–329 (2012). https://doi.org/10.1007/s11041-012-9506-3

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  • DOI: https://doi.org/10.1007/s11041-012-9506-3

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