| Budget Amount *help |
¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2016: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2015: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2014: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
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| Outline of Final Research Achievements |
An electroplating process of Fe-based magnetic films using a DES (Deep Eutectic Solvent) was developed. In electroplated Fe-Ni-Co films, high current efficiency (> 90%) was obtained in a wide composition range, and low coercivity values were observed in Fe-rich films. From the results of X-ray diffraction and TEM observation, we confirmed very fine structures of the Fe-rich films. As the effective magnetocrystalline anisotropy could be reduced by grain refinement, we considered that the low coercivity of the Fe-rich films is attributed to the grain refinement effect. From investigations on increase of deposition rate for the Fe films, we obtained a high rate of > 0.5 mm/h by the increased in the current density and the FeCl2 concentration in the bath. For electroplated Fe-Ni films, it was confirmed that glycine and ammonium amide sulfate effectively work to improve the surface roughness and the soft magnetic properties in Fe-rich films.
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