J. Phys. III France
Volume 1, Numéro 10, October 1991
Page(s) 1657 - 1662
DOI: 10.1051/jp3:1991218
J. Phys. III France 1 (1991) 1657-1662

Structure and magnetic properties of (Nd, Dy)-(Fe, Co)-B magnets with Al, Cr and Nb additions

S. Szymura1, Yu. M. Rabinovich2, V. V. Sergeev2, H. Bala3 and D. V. Pokrovskii2

1  Institute of Physics, Technical University, PL-42-200 Czestochowa, Poland
2  All-Union Research Institute of Electromechanics, VNIIEM, 10 7817 Moscow, U.S.S.R.
3  Institute of Chemistry, Technical University, PL-42-200 Czestochowa, Poland

(Received 28 March 1991, revised 11 June 1991, accepted 21 June 1991)

The microstructure-magnetic property relationships of the (Nd, Dy)-(Fe, Co)-B sintered magnets with both (Al, Cr) and (Al, Cr, Nb) additions were examined. A new NdFeNbB-phase has been observed in Nb-containing magnet. Small Nb additions increase coercivity and improve elevated temperature magnetic properties.

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