Abstract

The structure and magnetic properties of a rapidly quenched (Nd0.55Ho0.45)2.7(Fe0.8Co0.2)14B1.2. alloy are investigated by the X-ray and electron diffraction and by the standard magnetometry techniques. It is found that using the quenching velocity of Vq = 30 m/s, it is possible to attain the high-coercive state (iHc > 20 kOe) at room temperature as a result of formation of nano-sized grains of the main 2-14-1 phase. The low-temperature study of hysteresis properties of the material obtained is performed for the first time.

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