Abstract
In this work, bulk anisotropic Mn-Al-(C) magnets have been produced by hot-deforming arc-melted alloys. The hot-deformed magnets develop a texture in a plane perpendicular to the deformation direction. Optimum magnetic properties have been obtained in a magnet with nominal composition Mn53.5Al44.5C2 with values of remnant magnetization, coercivity, and energy product of 2.2 kOe, 3.3 kG, and 1.8 MGOe, respectively. A maximum coercivity of 2.8 kOe has been obtained in the magnet with composition Mn54.5Al43.5C2. Addition of C is effective in increasing the coercivity of the substituted alloy.
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