Magnetocaloric effect of FeCrB amorphous alloys with low Curie point

Fe_100-x-yCr_xB_y(x=11-20, y=9-20) amorphous ribbons with low Curie point and high saturation magnetization, which could be applied in anti-icing in transmission lines, were prepared by rapid-quenching with various technological parameters. Experimental results show that the Curie temperatures of Fe₆₅Cr₁₅B₂₀ and Fe₆₄Cr₁₆B₂₀ amorphous ribbons are 28.6 and 11.6℃, while the saturation magnetizations of Fe₆₅Cr₁₅B₂₀ and Fe₆₄Cr₁₆B₂₀ amorphous ribbons are 0.69 and 0.62 T at 0℃, respectively. Magnetocaloric effects of Fe₆₅Cr₁₅B₂₀ and Fe₆₄Cr₁₆B₂₀ amorphous ribbons were approximately measured and analyzed by using a self-designed apparatus on the basis of the near heat-insulation method.