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Double sintering in manufacturing thermostable Pr-Dy-Fe-Co-B-Cu-Al permanent magnetsстатья
Информация о цитировании статьи получена из
Scopus
Дата последнего поиска статьи во внешних источниках: 26 февраля 2018 г.
- Авторы: Burkhanov G., Semenova E., Karpenkov D., Lukin A., Kolchugina N., Cwik J., Rogacki K., Kursa M., Skotnicova K.
- Журнал: METAL 2016 - 25th Anniversary International Conference on Metallurgy and Materials, Conference Proceedings
- Год издания: 2016
- Первая страница: 1432
- Последняя страница: 1438
- Аннотация: The use of double sintering and rare-earth metal hydride additions allows us to substantially increase the hysteretic parameters of sintered permanent magnets having the composition (wt.%): Pr-14.7, Dy-16.9, Co- 24.4, ?-1.2, Al-0.3, Cu-0.15, Fe balance. The following magnetic characteristics were reached: Br = 0.95 T, jHc = 1640kA/m, Hk =1370kA/m, BHmax = 176 kJ/m3, temperature coefficient of induction |О±|< 0.01 (?=-60В°C to+100 В°C). The found weak dependence of structure-sensitive parameters, such as jHc and Hk on the cooling rate from the low-temperature heat-treatment temperature (500 В°C) is discussed in connection with the invar and magnetostrictive behavior of the principal magnetic phase (Pr,Dy)2(Fe, Co)14B at temperatures below the Curie temperature, which were used for the low-temperature treatment. Measurements of temperature dependences of the electrical resistivity of the magnets allowed us to demonstrate the presence and absence of the electricalresistivity anomaly corresponding to the Curie temperature for magnets free from cobalt and with high cobalt content, respectively.
- Добавил в систему: Карпенков Дмитрий Юрьевич