Dependence of the coercive force on the magnetic field sweep rate in (PrDy)(FeCo)B alloys


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The dependence between the coercive force and the average hysteresis loop record time was revealed in sintered (Pr1 – xDyx)13(Fe1 – yCoy)79B8 magnets. The coercive force was established to grow by 22% with an increase in the average hysteresis loop sweep rate within a range of 1.1 × 102–3 × 105 Oe/min, obeying a logarithmic dependence on the loop passage velocity with saturation at low rates. Some domain structure transformations produced by a magnetic field in the process of magnetization were established by magnetic force microscopy.

Sobre autores

E. Kunitsyna

Institute of Problems of Chemical Physics

Email: morgunov2005@yandex.ru
Rússia, pr. Akademika Semenova 1, Chernogolovka, Moscow oblast, 142432

O. Koplak

Institute of Problems of Chemical Physics

Email: morgunov2005@yandex.ru
Rússia, pr. Akademika Semenova 1, Chernogolovka, Moscow oblast, 142432

V. Kucheryaev

All-Russia Research Institute of Aviation Materials

Email: morgunov2005@yandex.ru
Rússia, ul. Radio 17, Moscow, 105005

D. Korolev

All-Russia Research Institute of Aviation Materials

Email: morgunov2005@yandex.ru
Rússia, ul. Radio 17, Moscow, 105005

V. Piskorskii

All-Russia Research Institute of Aviation Materials

Email: morgunov2005@yandex.ru
Rússia, ul. Radio 17, Moscow, 105005

A. Bezverkhnii

Tambov State Technical University

Email: morgunov2005@yandex.ru
Rússia, ul. Sovetskaya 106, Tambov, 392000

R. Morgunov

Institute of Problems of Chemical Physics; All-Russia Research Institute of Aviation Materials; Tambov State Technical University

Autor responsável pela correspondência
Email: morgunov2005@yandex.ru
Rússia, pr. Akademika Semenova 1, Chernogolovka, Moscow oblast, 142432; ul. Radio 17, Moscow, 105005; ul. Sovetskaya 106, Tambov, 392000

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