Chemical synthesis and research nanopowder of magnetic hard alloy Nd<sub>15</sub>Fe<sub>78</sub>B<sub>7</sub>
Odiljon AbdurakhmonovRussian University of Chemical Technology named after D. I. Mendeleev, Russian Federation, Moscow, Miusskaya square, 9, building 1E. V. YurtovRussian University of Chemical Technology named after D. I. Mendeleev, Russian Federation, Moscow, Miusskaya square, 9, building 1E. S. SavchenkoAlexander Savchenko
2020en
ABI
Annotatsiya
Abstract Hard magnetic nanopowders of the Nd 15 Fe 78 B 7 alloy were synthesized by the reduction-diffusion reaction of a stoichiometric mixture of Nd, Fe, and Fe-B oxides with CaH 2 in a hydrogen atmosphere at 800 ° C. Nd, Fe, Fe-B oxides were obtained by precipitation and had the form of granules with an average particle size of neodymium oxide - 50 nm, iron oxide - 95 nm, iron borate - 57 nm. The particle size of the Nd 15 Fe 78 B 7 alloy was 45-140 nm. It is shown that the proposed method is suitable for obtaining nanopowders of hard magnetic alloys of the Nd-Fe-B system.
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