Ferromagnetic microwires α-Fe/(PrDy)(FeCo)B for micromanipulators and polymer composites

Koplak O.V., Kunitsyna E.I., Valeev R.A., Korolev D.V., Piskorsky V.P., Morgunov R.B.
UDC
537.622.4
DOI
10.18577/2307-6046-2019-0-11-60-67
Article PDF (Russian) (720.52 KB)
How to cite
Koplak O.V., Kunitsyna E.I., Valeev R.A., Korolev D.V., Piskorsky V.P., Morgunov R.B. Ferromagnetic microwires α-Fe/(PrDy)(FeCo)B for micromanipulators and polymer composites // Proceedings of VIAM. 2019. No. 11. DOI: 10.18577/2307-6046-2019-0-11-60-67. URL: https://test.viam.ru/en/journal/2019/11/7
Keywords
magnetic microwire, pendant drop melt extraction, magnetic hysteresis, bistability, composites.
Abstract

Technology of manufacturing of the α-Fe microwires of 30 μm diameter covered with amorphous (PrDy)(FeCo)B phase with high magnetostriction is developed. The microwires satisfy to technical conditions in rectangular shape of their magnetic hysteresis and geometric parameters. Note that one of the technologies for manufacturing permanent rare-earth magnets includes the stage of preparation of the amorphous phase, which then crystallizes, forming crystallites with a given direction of the main axes of magnetization (magnetic texture). It is this stage that leads to the production of microwires with functional properties.

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