论文信息 - Electrodeposited Fe-Co films prepared from a citric-acid-based plating bath

Electrodeposited Fe-Co films prepared from a citric-acid-based plating bath

Electrodeposited Fe-Co films are commonly prepared in a boric-acid-based bath. In this research, we applied citric acid instead of boric acid for the plating of Fe-Co films because boron in the waste bath is restricted by environmental-protection regulations in Japan. We evaluated the effect of citric acid on the magnetic and structural properties of the films. The saturation magnetization of the Fe-Co films slightly increased while the Fe content in the Fe-Co films decreased with increasing citric acid concentration. The lowest coercivity value of 240 A/m was obtained at a citric acid concentration of 100 g/L. The plating bath with this citric acid concentration enabled us to obtain Fe-Co films with high saturation magnetizations and smooth surface morphologies.

[1] I. Yaacob,et al. Synthesis and Characterization of Co-Fe Nanocrystalline Magnetic Films Electrodeposited From Electrolyte Solution Containing Sodium Saccharin , 2011, IEEE Transactions on Magnetics.

[2] L. Tian,et al. The influence of pH and bath composition on the properties of Fe–Co alloy film electrodeposition , 2010 .

[3] O. Karaagac,et al. Role of electrolyte pH on structural and magnetic properties of Co–Fe films , 2010 .

[4] E. Pereira,et al. Effect of temperature on Co electrodeposition in the presence of boric acid , 2007 .

[5] T. Yamashita,et al. Effect of bath pH on nickel citrate electroplating bath , 2004 .

[6] T. Yamashita,et al. Bright nickel plating from nickel citrate electroplating baths , 2004 .

[7] M. McHenry,et al. Magnetic properties of HITPERM (Fe, Co)88Zr7B4Cu1 magnets , 1999 .

[8] G. Herzer,et al. Grain size dependence of coercivity and permeability in nanocrystalline ferromagnets , 1990, International Conference on Magnetics.

[9] Y. Yoshizawa,et al. New Fe-based soft magnetic alloys composed of ultrafine grain structure , 1988 .

[10] Akihiro Makino,et al. High Saturation Magnetization and Soft Magnetic Properties of bcc Fe–Zr–B and Fe–Zr–B–M (M=Transition Metal) Alloys with Nanoscale Grain Size , 1991 .