Highly oriented ferromagnetic polymers based on Co- and Fe-rich amorphous microwires

Авторы: Bautin V.A., Kostitsyna E.V., Perov N.S., Usov N.A.
Журнал: Composites Communications
Том: 22
Номер: 12
Год издания: 2020
Номер статьи: 100459
DOI: 10.1016/j.coco.2020.100459
Аннотация: In this paper highly oriented magneto-polymer composites have been obtained by means of Co and Fe-rich glass-coated amorphous microwires with various metal nucleus and outer diameters. The microwire segments with length L ~ 0.5–0.6 cm were oriented in the magnesium alloy matrix and were poured with a liquid polymer whose composition was a mixture of methyl methacrylate methacrylic acid and methacrylate copolymers in a ratio of 37/63% by mass. The magneto-polymer composites obtained possess high electric resistance, chemical stability and mechanical strength. The high average saturation magnetizations, <Ms> = 20–30 emu/cm3, have been obtained for Co and Fe based composites with the volume fraction of the magnetic material in the polymer matrix within the range 0.02–0.05. Both Co and Fe based composites show highly anisotropic magnetic properties. The magneto-polymer samples can be cut into pieces of arbitrary size and shape. This facilitates their use in various technical applications.
Добавил в систему: Перов Николай Сергеевич

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