Abstract:Fe/Pt multiplayer coatings were prepared via an electrodeposition process, where FeSO4·7H2O and H2PtCl6·6H2O solution were used as Fe2+source and Pt4+source, respectively, and Fe/Pt=100:1, pH=2.5. Then Platinum chip and pure copper chip were used as anode and cathode, respectively, in the above mixture solution. The Fe/Pt multiplayer coatings were obtained through adjusting the parameters of pulse potential which results in the deposits of Fe and Pt reduplicatively. The results show that the surface morphologies of the Fe/Pt multiplayer coatings changes with the variety of Fe-rich layer potentials. The Fe/Pt multiplayer coatings, where the Fe/Pt ratio is close to 3:1, have been prepared in the conditions of –2 V, 6 min for the Pt-rich layer, –5 V, 3 min for Fe-rich layer, and 4-cycle deposits. The coercivity and saturation magnetization of the as-prepared multiplayer coatings increase from 5.12 kA/m to 42.18 kA/m and from 43.1 kA/m to 459.1 kA/m, respectively, after annealing at 550 °C for 30 min.