Optimization of Fe/Co ratio in Fe(87-x-y)CoxTi7Zr6By alloys for high saturation magnetization

다국어 초록 (Multilingual Abstract)

We investigated a soft magnetic Fe(87-x-y)CoxTi7Zr6By (x ¼ 25, 30, 35 at.%, and y ¼ 2, 4 at.%) alloy system.
The Fe-based amorphous materials have been studied because of excellent soft magnetic properties: high saturation magnetization and low coercivity. Especially, the FeeCo system has the high saturation magnetization in comparison to Fe-only and Co-only cases. In this research, we used an X-ray diffractometer, differential scanning calorimeter, vibrating sample magnetometer and high-temperature vibrating sample magnetometer in order to observe the properties of the FeeCoeTieZreB alloy system.
One of the alloys showed the saturation magnetization of 1.67 T which is same as the highest value of Fe-based amorphous alloys. Furthermore, nanoindentation was performed to study the mechanical properties of this system. The highest and lowest values of nanoindentation hardness were 10.1 GPa and 8.2 GPa, respectively.

참고문헌 (Reference)

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16 김수민, "Effect of Iron on the Thermal and the Magnetic Properties for Cobalt-based Amorphous Alloys" 한국물리학회 67 (67): 2120-2123, 2015