Properties of sintered magnets Pr–Dy–Fe–Co–B depending on the composition and technological parameters of manufacture

Buzenkov A.V., Burkanov M.V., Valeev R.A., Piskorsky V.P.
UDC
539.231:669.859:537.622
DOI
10.18577/2307-6046-2024-0-5-91-100
Article PDF (Russian) (619.41 KB)
How to cite
Buzenkov A.V., Burkanov M.V., Valeev R.A., Piskorsky V.P. Properties of sintered magnets Pr–Dy–Fe–Co–B depending on the composition and technological parameters of manufacture // Proceedings of VIAM. 2024. No. 5. DOI: 10.18577/2307-6046-2024-0-5-91-100. URL: https://test.viam.ru/en/journal/2024/5/9
Keywords
magnetic hard materials, navigation devices, sintering temperature, rectangularity of demagnetization curve, coercive force, residual induction, chemical composition
Abstract

Magnetic hard materials (Pr1–xDyx)13,12–13,3(Fe1–yCoy)76,29–78,98B7,86–10,5 (x=0,40–0,58, y=0,20–0,24) for navigation devices are investigated depending on the composition and temperature of sintering. Measurements were carried out on a vibrating magnetometer on spherical samples at a temperature of 20±5 °C in magnetic fields up to 1800 kA/m. The demagnetization curves of sintered materials were measured by magnetization and induction with different cobalt and dysprosium contents. Special attention is paid to the rectangularity of the demagnetization curve depending on the composition and temperature of sintering.

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